CN116954114A - MCU controller with LCD drive - Google Patents
MCU controller with LCD drive Download PDFInfo
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- CN116954114A CN116954114A CN202310749417.7A CN202310749417A CN116954114A CN 116954114 A CN116954114 A CN 116954114A CN 202310749417 A CN202310749417 A CN 202310749417A CN 116954114 A CN116954114 A CN 116954114A
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- 238000001514 detection method Methods 0.000 claims abstract description 17
- 230000010355 oscillation Effects 0.000 claims abstract description 17
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 239000011521 glass Substances 0.000 claims description 7
- 239000013078 crystal Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 101150080085 SEG1 gene Proteins 0.000 claims description 3
- 101100421134 Schizosaccharomyces pombe (strain 972 / ATCC 24843) sle1 gene Proteins 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/76—Architectures of general purpose stored program computers
- G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit
- G06F15/7839—Architectures of general purpose stored program computers comprising a single central processing unit with memory
- G06F15/7842—Architectures of general purpose stored program computers comprising a single central processing unit with memory on one IC chip (single chip microcontrollers)
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
- G06F1/305—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations in the event of power-supply fluctuations
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/76—Architectures of general purpose stored program computers
- G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit
- G06F15/7839—Architectures of general purpose stored program computers comprising a single central processing unit with memory
- G06F15/7842—Architectures of general purpose stored program computers comprising a single central processing unit with memory on one IC chip (single chip microcontrollers)
- G06F15/7846—On-chip cache and off-chip main memory
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F15/00—Digital computers in general; Data processing equipment in general
- G06F15/76—Architectures of general purpose stored program computers
- G06F15/78—Architectures of general purpose stored program computers comprising a single central processing unit
- G06F15/7839—Architectures of general purpose stored program computers comprising a single central processing unit with memory
- G06F15/7842—Architectures of general purpose stored program computers comprising a single central processing unit with memory on one IC chip (single chip microcontrollers)
- G06F15/7853—Architectures of general purpose stored program computers comprising a single central processing unit with memory on one IC chip (single chip microcontrollers) including a ROM
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses an MCU controller with LCD drive; the system comprises an MCU, wherein the MCU is electrically connected with a VLCD voltage stabilizing circuit, the MCU is electrically connected with an IR driving circuit, the MCU is electrically connected with a voltage detection circuit, the MCU is electrically connected with built-in RC oscillation, the MCU is electrically connected with an LCD display, the MCU is electrically connected with a memory group, the memory group comprises an OTP ROM and an SRAM, and the OTP ROM is used for storing an operation program body of the system; the invention realizes effective control and adjustment of MCU, realizes safe detection of voltage, stable output of waveform, driving control, data information storage, storage efficiency and extraction efficiency, and prevents confusion of data information storage.
Description
Technical Field
The invention belongs to the technical field of MCU controllers, and particularly relates to an MCU controller with LCD drive.
Background
The micro control unit, also called as single chip microcomputer or single chip microcomputer, is to properly reduce the frequency and specification of the CPU, integrate peripheral interfaces such as memory (Timer), USB, A/D conversion, UART, PLC, DMA, etc., and even LCD driving circuit on a single chip to form a chip-level computer for different application occasions to perform different combination control. Such as mobile phones, PC periphery, remote controllers, to automobile electronics, industrial stepping motors, robot arm control and the like, can see the shadow of the MCU, and the MCU integrates on-chip peripheral devices; MCU is suitable for processing diagnosis and operation of various data of different information sources, and focuses on control, however, various MCU controllers on the market still have various problems.
The MCU chip disclosed by the authorization bulletin No. CN202838325U can overcome the limitation of fixed capacity of a program area and a data area while realizing matching with a corresponding power-on execution flow and a program burning mode, solves the problem that the program execution efficiency is affected due to the defect of low reading performance of an erasable nonvolatile memory, can improve the production and manufacturing yield of the chip, and reduces the cost; the MCU controller with the LCD drive is provided, but the problems that the existing MCU chip cannot realize self-safety detection, easily cause unstable operation of the system, cannot realize effective drive control adjustment, cause the operation of the MCU to easily cause faults and the like are not solved.
Disclosure of Invention
The present invention is directed to an MCU controller with LCD driving to solve the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: an MCU controller with LCD drive comprises MCU, VLCD voltage stabilizing circuit electrically connected with MCU for maintaining output voltage unchanged when input voltage fluctuation or load change, IR drive circuit electrically connected with MCU between main circuit and control circuit for amplifying control circuit signal to drive power transistor, voltage detection circuit electrically connected with MCU for ensuring circuit to work power voltage within specific safety range, and fault alarm and brake circuit to work and stop protective measures when the work power endangers safety, in addition, few models also detect output voltage and keep safe operation of a circuit, the MCU is electrically connected with built-in RC oscillation, the built-in RC oscillation is used for generating low-frequency signals in the range of 1Hz-1MHz and is used for generating waveform output, the MCU is electrically connected with LCD display, the LCD display is used for displaying data information, the MCU is electrically connected with a memory group, the memory group is used for realizing storage processing of the data information, the memory group comprises OTP ROM and SRAM, the OTP ROM is used for realizing storage of an operation program body of a system, the SRAM is used for realizing storage of operation logs of the system, realizing classified storage of the data information, improving the storage rate and the extraction rate of the data information and preventing confusion of the data information, the working voltage is 2.0V-3.6V, the standby current is about 5-25uA, the MCU is electrically connected with an I/O port, the I/O port is used for realizing the electrical connection of external equipment and the burning of data information and the transmission of data, and the I/O port comprises 4 groups of programmable I/O ports.
Preferably, the IR driving circuit is used to drive the LCD display, and the IR driving circuit includes three types of 6COM by 14SEG,1/3bias, 5COM by 15SEG,1/3bias, and 4COM by 16SEG,1/3bias, where 1/3bias indicates 1/3bias, that is, the minimum voltage output of the COM and SEG pins of the LCD is 1/3Vlcd, and the voltage output of each pin is actually 0, 1/3Vlcd, 2/3Vlcd, or Vlcd.
Preferably, an LCD booster circuit is also built in the MCU, the output voltage of the LCD booster circuit is in the range of 2.5V-3.5V, and is set in 8 grades, so that the LCD display of different specifications of glass is supported, the display brightness of the glass is kept consistent, the change of the battery voltage is avoided, and the boosting is not required to be externally connected with a capacitor.
Preferably, the built-in RC oscillation is a built-in 8MHz oscillation circuit, the frequency offset range is less than or equal to +/-1.5%, the built-in low-speed oscillator supports 0.5S/0.125S wakeup, the frequency offset is less than or equal to +/-2.0%, and the built-in RC oscillation circuit is externally connected with an XTAL32768Hz crystal oscillator and supports the application of a resonance-free capacitor.
Preferably, the MCU is provided with an infrared emission driving circuit, and basic information of the infrared emission driving circuit is as follows: iol=500ma@vdd=3.0v, vol=0.6v.
Preferably, the voltage detection circuit comprises three-level voltage detection, namely 2.2V, 2.5V and 2.8V, supports a 4-level stack, and is also provided with 1 8-bit timer, so that safe voltage detection is realized, and the stable operation and the safety of the system are maintained.
Preferably, the MCU adopts three reset conditions, and three reset adjustment are power-on reset, low-voltage reset and watchdog overflow reset respectively, and the voltage value of the low-voltage reset is 1.6V.
Preferably, the MCU controller for LCD driving comprises a plurality of packaging forms, which support offline programming, wherein the packaging forms comprise ADKT24P24S, SSOP24-0.635mm, ADKT24P24M, SOP24-1.0mm, ADKT24P24L, SOP24-1.0mm, ADKT24P15, SOP16-1.27mm, the MCU controllers in the forms of ADKT24P24M, SOP24-1.0mm are narrow body controllers, and the MCU controllers in the forms of ADKT24P24L, SOP24-1.0mm are wide body controllers.
Preferably, an application circuit of the MCU controller of the LCD driver;
the LED power supply comprises an MCU controller, wherein an LCD Panel is electrically connected to the MCU controller, a light emitting diode IR LED is electrically connected between a VDD pin and a REM pin of the MCU controller, a power supply is electrically connected to the VDD pin of the MCU controller, a capacitor C1 is electrically connected to the VDD pin of the MCU controller, another power supply is electrically connected to the other side of the capacitor C1, a VSS pin of the MCU controller is electrically grounded, and the other side of the MCU controller is electrically connected to a plurality of control keys.
Preferably, the other application circuit of the MCU controller of the LCD driver;
the LED display device comprises an MCU controller, wherein an LCD Panel is electrically connected to the MCU controller, a light emitting diode IR LED is electrically connected between a VDD pin and a REM pin of the MCU controller, a power supply is electrically connected to the VDD pin of the MCU controller, a capacitor C1 is electrically connected to the VDD pin of the MCU controller, another power supply is electrically connected to the other side of the capacitor C1, a VSS pin of the MCU controller is electrically grounded, a plurality of control keys are electrically connected to the other side of the MCU controller, and a crystal oscillator is electrically connected between an SEG0 pin and an SEG1 pin of the MCU controller.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a high-performance 4-bit MCU with LCD display drive, which comprises 4KW OTP ROM, 224BSRAM, 19I/O ports and at most 84-point LCD display, wherein RC oscillation, IR drive circuit, VLCD voltage stabilizing circuit and voltage detection circuit are built in the MCU, and the MCU is mainly applied to infrared remote controller products with LCD screens.
The VLCD voltage stabilizing circuit is used for a power supply circuit which can still keep the output voltage unchanged basically when the input voltage fluctuates or the load changes, so that the MCU is stably powered and operated, the IR driving circuit is positioned between the main circuit and the control circuit, and is used for amplifying signals of the control circuit, namely, an intermediate circuit which is used for amplifying signals of the control circuit so that the control circuit can drive the power transistor, the voltage detecting circuit aims at ensuring that the working power supply voltage of the circuit is within a specific safety range, the built-in RC oscillation is used for generating a low-frequency signal in a range of 1Hz-1MHz and is used for generating waveform output, the LCD display is used for realizing the display of data information, and the memory group is used for realizing the storage processing of the data information.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of a first package of the present invention;
FIG. 3 is a schematic illustration of a second package of the present invention;
FIG. 4 is a first schematic illustration of the present invention;
FIG. 5 is a second schematic illustration of the present invention;
FIG. 6 is a schematic diagram of an MCU package structure according to the present invention;
fig. 7 is a schematic diagram of the package size of the MCU according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 7, the present invention provides a technical solution: an MCU controller with LCD drive comprises MCU, VLCD voltage stabilizing circuit electrically connected with MCU for maintaining output voltage unchanged when input voltage fluctuation or load change, IR drive circuit electrically connected with MCU between main circuit and control circuit for amplifying control circuit signal to drive power transistor, voltage detection circuit electrically connected with MCU for ensuring circuit to work power voltage within specific safety range, and fault alarm and brake circuit to work and stop protective measures when the work power endangers safety, in addition, few models also detect output voltage and keep safe operation of a circuit, the MCU is electrically connected with built-in RC oscillation, the built-in RC oscillation is used for generating low-frequency signals in the range of 1Hz-1MHz and is used for generating waveform output, the MCU is electrically connected with LCD display, the LCD display is used for displaying data information, the MCU is electrically connected with a memory group, the memory group is used for realizing storage processing of the data information, the memory group comprises OTP ROM and SRAM, the OTP ROM is used for realizing storage of an operation program body of a system, the SRAM is used for realizing storage of operation logs of the system, realizing classified storage of the data information, improving the storage rate and the extraction rate of the data information and preventing confusion of the data information, the working voltage is 2.0V-3.6V, the standby current is about 5-25uA, the MCU is electrically connected with an I/O port, the I/O port is used for realizing the electrical connection of external equipment and the burning of data information and the transmission of data, and the I/O port comprises 4 groups of programmable I/O ports.
In order to realize effective driving control of the system and realize driving control of the LCD display, in this embodiment, preferably, the IR driving circuit is used to realize driving of the LCD display, where the IR driving circuit includes three types of 6COM by 14SEG,1/3bias, 5COM by 15SEG,1/3bias, and 4COM by 16SEG,1/3bias, where 1/3bias indicates 1/3bias, that is, the minimum division of the voltage output between the COM and SEG pins of the LCD is 1/3Vlcd, and the actual voltage output by each pin is 0, 1/3Vlcd, 2/3Vlcd, or Vlcd.
In order to realize power supply driving of the LCD display, in this embodiment, preferably, an LCD boost circuit is further built in the MCU, an output voltage of the LCD boost circuit ranges from 2.5V to 3.5V, and is set in 8 steps, so that the LCD display of different specifications of glass is supported, and the glass display brightness is kept consistent, does not change along with the voltage of the battery, and boosting does not need an external capacitor.
In order to realize waveform output of the system, in the embodiment, preferably, the built-in RC oscillation is a built-in 8MHz oscillation circuit, the frequency offset range is less than or equal to +/-1.5%, the built-in low-speed oscillator supports 0.5S/0.125S wakeup, the frequency offset is less than or equal to +/-2.0%, and the built-in RC oscillation circuit is externally connected with an XTAL32768Hz crystal oscillator to support the application of a resonance-free capacitor.
In order to implement infrared receiving and transmission to the MCU, in this embodiment, preferably, the MCU is built with an infrared emission driving circuit, and basic information of the infrared emission driving circuit is as follows: iol=500ma@vdd=3.0v, vol=0.6v.
In order to effectively detect the voltage and keep the power supply safety of the system, in this embodiment, preferably, the voltage detection circuit includes three-stage voltage detection, which are respectively 2.2V, 2.5V and 2.8V, supports a 4-stage stack, and further sets 1 8-bit timer to realize safe voltage detection and keep the stable operation and safety of the system.
In order to realize the reset control operation on the MCU and improve the operation accuracy of the system, in the embodiment, preferably, the MCU adopts three reset conditions, and three reset adjustment are respectively power-on reset, low-voltage reset and watchdog overflow reset, and the voltage value of the low-voltage reset is 1.6V.
In order to implement packaging processing on the MCU, to implement integrated packaging on each circuit, and to use multiple types of packaging, multiple packaging types are adopted, in this embodiment, preferably, the MCU controller driven by the LCD includes multiple packaging types supporting off-line programming, and multiple packaging types include ADKT24P24S, SSOP24-0.635mm and ADKT24P24M, SOP24-1.0mm, ADKT24P24L, SOP24-1.0mm and ADKT24P15, SOP16-1.27mm, where the MCU controllers in the forms of ADKT24P24M, SOP24-1.0mm are narrow-body controllers, and the MCU controllers in the forms of ADKT24P24L, SOP24-1.0mm are wide-body controllers.
In order to implement the MCU, in this embodiment, preferably, an application circuit of the MCU controller driven by the LCD;
the LED power supply comprises an MCU controller, wherein an LCD Panel is electrically connected to the MCU controller, a light emitting diode IR LED is electrically connected between a VDD pin and a REM pin of the MCU controller, a power supply is electrically connected to the VDD pin of the MCU controller, a capacitor C1 is electrically connected to the VDD pin of the MCU controller, another power supply is electrically connected to the other side of the capacitor C1, a VSS pin of the MCU controller is electrically grounded, and the other side of the MCU controller is electrically connected to a plurality of control keys.
In order to implement the MCU, in this embodiment, preferably, another application circuit of the MCU controller driven by the LCD;
the LED display device comprises an MCU controller, wherein an LCD Panel is electrically connected to the MCU controller, a light emitting diode IR LED is electrically connected between a VDD pin and a REM pin of the MCU controller, a power supply is electrically connected to the VDD pin of the MCU controller, a capacitor C1 is electrically connected to the VDD pin of the MCU controller, another power supply is electrically connected to the other side of the capacitor C1, a VSS pin of the MCU controller is electrically grounded, a plurality of control keys are electrically connected to the other side of the MCU controller, and a crystal oscillator is electrically connected between an SEG0 pin and an SEG1 pin of the MCU controller.
The working principle and the using flow of the invention are as follows: when the system is used, the VLCD voltage stabilizing circuit is used for a power supply circuit which can still keep the output voltage unchanged basically when the input voltage fluctuates or the load changes, so as to realize stable power supply operation of the MCU, the IR driving circuit is positioned between the main circuit and the control circuit, an intermediate circuit used for amplifying signals of the control circuit, namely, the signal of the amplifying control circuit can drive the power transistor, the voltage detecting circuit aims at ensuring that the working power supply voltage of the circuit is within a specific safety range, if the working power supply endangers the safety of a device, fault alarming is implemented, the braking circuit is put into operation and shut down for protecting measures, in addition, few types of devices also detect the output voltage, keep the safety operation of the circuit, the built-in RC oscillation is used for generating a low-frequency signal in the range of 1Hz-1MHz and is used for generating waveform output, the LCD display is used for realizing displaying data information, the memory set is used for realizing storage processing of the data information, the memory set comprises OTP ROM and SRAM, the OTP ROM is used for realizing the storage of an operation program body of the system, the operation log of the system is used for realizing the storage of the data information, the chaotic storage of the data information is realized, the data information is prevented from being confused, the data information is prevented from being stored, the data rate is improved, the data is electrically connected with an external I/O (input/output) and a standby rate is prevented from being electrically connected to an I/O2.O 2.3.O/an I/O (input/O) and an I/O2 electric port is electrically, and an I/2 is used for realizing the electrical connection.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. An MCU controller with LCD drive, characterized by: the power supply circuit is used for keeping the output voltage basically unchanged when the input voltage fluctuates or the load changes, so that the MCU is stably powered;
the MCU is electrically connected with an IR driving circuit, the IR driving circuit is positioned between the main circuit and the control circuit, and is used for amplifying signals of the control circuit, namely amplifying signals of the control circuit to enable the signals of the control circuit to drive the power transistor;
the MCU is electrically connected with a voltage detection circuit, the voltage detection circuit aims to ensure that the working power supply voltage of the circuit is within a specific safety range, if the working power supply endangers the safety of devices, fault alarm is implemented, a brake circuit is put into operation and shut down for protection measures are implemented, in addition, the output voltage is detected by a few models, and the safe operation of the circuit is maintained;
the MCU is electrically connected with a built-in RC oscillator, and the built-in RC oscillator is used for generating a low-frequency signal in the range of 1Hz-1MHz and is used for generating waveform output;
the MCU is electrically connected with an LCD display, and the LCD display is used for displaying data information;
the MCU is electrically connected with a memory group, and the memory group is used for realizing the storage processing of data information;
the memory group comprises an OTP ROM and an SRAM, wherein the OTP ROM is used for realizing the storage of an operation program body of the system, the SRAM is used for realizing the storage of an operation log of the system, realizing the classified storage of data information, improving the storage rate and the extraction rate of the data information and preventing the data information from being confused;
when the MCU is used in operation, the working voltage is between 2.0V and 3.6V, the standby current is between 5 and 25uA, the MCU is electrically connected with an I/O port, the I/O port is used for realizing the electrical connection of external equipment and the burning of data information and the transmission of data, and the I/O port comprises 4 groups of programmable I/O ports.
2. The MCU controller with LCD drive of claim 1, wherein: the IR driving circuit is used for driving the LCD display, and the IR driving circuit includes the following three types, 6COM by 14SEG,1/3bias, 5COM by 15SEG,1/3bias and 4COM by 16SEG,1/3bias, where 1/3bias indicates that the voltage output of the COM and SEG pins of the LCD is the minimum division of 1/3Vlcd, and the voltage output of each pin is actually 0, 1/3Vlcd, 2/3Vlcd or Vlcd.
3. The MCU controller with LCD drive of claim 1, wherein: the MCU is internally provided with an LCD booster circuit, the output voltage of the LCD booster circuit is in the range of 2.5V-3.5V, and is set in 8 grades, so that the LCD display of different specifications of glass is supported, the display brightness of the glass is consistent, the change of the glass along with the voltage of a battery is avoided, and the boosting is not required to be externally connected with a capacitor.
4. The MCU controller with LCD drive of claim 1, wherein: the built-in RC oscillation is a built-in 8MHz oscillation circuit, the frequency offset range is less than or equal to +/-1.5%, the built-in low-speed oscillator supports 0.5S/0.125S wakeup, the frequency offset is less than or equal to +/-2.0%, and the built-in RC oscillation circuit is externally connected with an XTAL32768Hz crystal oscillator and supports the application of a resonance-free capacitor.
5. The MCU controller with LCD drive of claim 1, wherein: the MCU is internally provided with an infrared emission driving circuit, and the basic information of the infrared emission driving circuit is as follows: iol=500ma@vdd=3.0v, vol=0.6v.
6. The MCU controller with LCD drive of claim 1, wherein: the voltage detection circuit comprises three-level voltage detection, namely 2.2V, 2.5V and 2.8V, supports 4-level stacks, is further provided with 1 8-bit timer, realizes safe voltage detection, and keeps stable operation and safety of the system.
7. The MCU controller with LCD drive of claim 1, wherein: the MCU adopts three reset conditions, and three reset adjustment are power-on reset, low-voltage reset and watchdog overflow reset respectively, and the voltage value of the low-voltage reset is 1.6V.
8. The MCU controller with LCD drive of claim 1, wherein: the MCU controller for the LCD drive comprises a plurality of packaging forms, which support offline programming, wherein the packaging forms comprise ADKT24P24S, SSOP24-0.635mm, ADKT24P24M, SOP24-1.0mm, ADKT24P24L, SOP24-1.0mm, ADKT24P15 and SOP16-1.27mm, the MCU controllers in the forms of ADKT24P24M and SOP24-1.0mm are narrow-body controllers, and the MCU controllers in the forms of ADKT24P24L and SOP24-1.0mm are wide-body controllers.
9. The MCU controller with LCD drive of claim 1, wherein: an application circuit of the MCU controller driven by the LCD;
the LED power supply comprises an MCU controller, wherein an LCD Panel is electrically connected to the MCU controller, a light emitting diode IR LED is electrically connected between a VDD pin and a REM pin of the MCU controller, a power supply is electrically connected to the VDD pin of the MCU controller, a capacitor C1 is electrically connected to the VDD pin of the MCU controller, another power supply is electrically connected to the other side of the capacitor C1, a VSS pin of the MCU controller is electrically grounded, and the other side of the MCU controller is electrically connected to a plurality of control keys.
10. The MCU controller with LCD drive of claim 1, wherein: another application circuit of the MCU controller driven by the LCD;
the LED display device comprises an MCU controller, wherein an LCD Panel is electrically connected to the MCU controller, a light emitting diode IR LED is electrically connected between a VDD pin and a REM pin of the MCU controller, a power supply is electrically connected to the VDD pin of the MCU controller, a capacitor C1 is electrically connected to the VDD pin of the MCU controller, another power supply is electrically connected to the other side of the capacitor C1, a VSS pin of the MCU controller is electrically grounded, a plurality of control keys are electrically connected to the other side of the MCU controller, and a crystal oscillator is electrically connected between an SEG0 pin and an SEG1 pin of the MCU controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310749417.7A CN116954114A (en) | 2023-06-25 | 2023-06-25 | MCU controller with LCD drive |
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| CN202310749417.7A CN116954114A (en) | 2023-06-25 | 2023-06-25 | MCU controller with LCD drive |
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| CN212519502U (en) * | 2020-08-07 | 2021-02-09 | 广东美的制冷设备有限公司 | Remote controller control circuit, circuit board and remote controller |
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| CN203658970U (en) * | 2013-12-13 | 2014-06-18 | 卫星电子（中山）有限公司 | LCD touch screen control transmitter |
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