CN204759409U - Serial circuits and electronic equipment - Google Patents
Serial circuits and electronic equipment Download PDFInfo
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- CN204759409U CN204759409U CN201520353473.XU CN201520353473U CN204759409U CN 204759409 U CN204759409 U CN 204759409U CN 201520353473 U CN201520353473 U CN 201520353473U CN 204759409 U CN204759409 U CN 204759409U
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- usb connector
- pin
- interface
- data
- serial port
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Abstract
The utility model provides a serial circuits and electronic equipment, including treater, transceiver chip and USB connector, the USB connector includes power pin, first data pin, second data pin and signal ground pin, the data transmission port of treater passes through the output of transceiver chip conversion passageway with the first data pin of USB connector is connected, the data receive port of treater passes through the input of transceiver chip conversion passageway with the second data pin of USB connector is connected, the signal ground pin of USB connector with the signal ground port of transceiver chip is connected, the power pin is unsettled. Take the little USB connector in panel space through setting up than DB9 connector or RJ45 connector, in practical application, can save the area of equipment panel, be favorable to the miniaturization of product when reducing product cost very much.
Description
Technical field
The utility model relates to communication equipment field, particularly relates to a kind of serial port circuit electronic equipment.
Background technology
Serial line interface computing machine, telecommunications, Industry Control, etc. the communications field have and use widely, even become standard configuration in certain fields.Serial line interface is mainly used for the location of equipment debugging and failure problems.
No matter serial line interface is use DB9 (9 needle serial port) connector or use RJ45 connector, and volume is all very large.Conventional taking on panel of DB9 connector is of a size of 30.9mm*12.5mm, and conventional taking on panel of RJ45 connector is of a size of 16.6mm*13.5mm.And panel space is normally very valuable, the serial line interface of these 2 kinds of connectors often takies a lot of space of panel, causes panel to need to do more, cause the cost of product high, and volume is large.
Utility model content
The utility model object is to provide a kind of serial port circuit, and being intended to solve serial line interface existing serial line interface, to take panel space many, cause cost high and bulky problem.
The utility model provides a kind of serial port circuit, comprise processor, transponder chip and USB connector, described USB connector comprises power pins, first data pin, second data pin and signal ground pin, the data sending terminal mouth of described processor is connected with the first data pin of described USB connector by the output ALT-CH alternate channel of described transponder chip, the data receiver port of described processor is connected with the second data pin of described USB connector by the input ALT-CH alternate channel of described transponder chip, the signal ground pin of described USB connector is connected with the signal ground port of described transponder chip, described power pins is unsettled.
Further, described USB connector is USBType-A interface, USBType-B interface, MiniUSBType-A interface, MiniUSBType-B interface, MicroUSBType-A interface, MicroUSBType-B interface or USBType-C interface.
Further, described USB connector is female joint.
Further, the metal shell of described USB connector connects protecting field.
Further, described USB connector also comprises ID pin, and this ID pin is unsettled.
Further, the model of described transponder chip is MAX3232.
The utility model additionally provides a kind of electronic equipment, comprises above-mentioned serial port circuit.
Above-mentioned serial port circuit takies the little USB connector of panel space by arranging compared with DB9 connector or RJ45 connector, and change the signal definition of interface, under the condition of panel size and anxiety thereof, still serial ports can be drawn smoothly, in actual applications, the area of device panel can be saved, while reducing cost of products, be particularly conducive to the miniaturization of product.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of serial port circuit in the utility model preferred embodiment;
Embodiment
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, serial port circuit in the utility model preferred embodiment, comprise processor U10, transponder chip U20 and USB connector U30.
Particularly, processor U10 for Cavium model for CN63 family chip.Transponder chip U20 take model as the level number of the changing chip of MAX3232 is example, and as shown in the figure, port T1IN and T1OUT, R1IN and R1OUT of this chip form output ALT-CH alternate channel, input ALT-CH alternate channel as level conversion respectively.Port T2IN and T2OUT, R2IN and R2OUT that the present embodiment does not use form output ALT-CH alternate channel, input ALT-CH alternate channel as level conversion too.
USB connector U30 is female joint.In other embodiments, USB connector U30 can be male joint.Described USB connector U30 is USBType-A interface, USBType-B interface, MiniUSBType-A interface, MiniUSBType-B interface, MicroUSBType-A interface, MicroUSBType-B interface or USBType-C interface.USB connector U30 will illustrate specific embodiment for MicroUSBType-B interface below.
USB connector U30 comprises power pins VBUS, the first data pin D-, the second data pin D+ and signal ground pin GND, the data sending terminal mouth of described processor U10 is connected with the first data pin D-of described USB connector U30 by the output ALT-CH alternate channel (T1IN-T1OUT) of described transponder chip U20, and the data receiver port of described processor U10 is connected with the second data pin D+ of described USB connector U30 by the input ALT-CH alternate channel (R1IN-R1OUT) of described transponder chip U20.Described power pins VBUS is unsettled.
Particularly, in the first data pin D-and the second data pin D+, one of them is used as to export, and another is then used as input.So, with above-described embodiment unlike, the first data pin D-and the second data pin D+ can be defined as digital received and sent port respectively.So, the output ALT-CH alternate channel (T1IN-T1OUT) of data sending terminal mouth by described transponder chip U20 and the second data pin D+ of described USB connector U30 of described processor U10; The data receiver port of described processor U10 is connected with the first data pin D-of described USB connector U30 by the input ALT-CH alternate channel (R1IN-R1OUT) of described transponder chip U20.
Further, the metal shell 6 (non-signal pin) of described USB connector U30 connects protecting field.
Further, described USB connector U30 also comprises ID pin, and this ID pin is unsettled, states power pins VBUS also unsettled.And the signal ground pin GND of USB connector U30 is connected with the signal ground port GND of described transponder chip U20, the benefit done like this be when this interface be mistaken as be USB functional interface time and be connected to USB device, any infringement can not be caused to this USB.
The utility model additionally provides a kind of electronic equipment, comprises above-mentioned serial port circuit.
Above-mentioned serial port circuit takies the little USB connector U30 of panel space by arranging compared with DB9 connector or RJ45 connector, and change the signal definition of interface, under the condition of panel size and anxiety thereof, still serial ports can be drawn smoothly, in actual applications, the area of device panel can be saved, while reducing cost of products, be particularly conducive to the miniaturization of product.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a serial port circuit, it is characterized in that, comprise processor, transponder chip and USB connector, described USB connector comprises power pins, first data pin, second data pin and signal ground pin, the data sending terminal mouth of described processor is connected with the first data pin of described USB connector by the output ALT-CH alternate channel of described transponder chip, the data receiver port of described processor is connected with the second data pin of described USB connector by the input ALT-CH alternate channel of described transponder chip, the signal ground pin of described USB connector is connected with the signal ground port of described transponder chip, described power pins is unsettled.
2. serial port circuit as claimed in claim 1, it is characterized in that, described USB connector is USBType-A interface, USBType-B interface, MiniUSBType-A interface, MiniUSBType-B interface, MicroUSBType-A interface, MicroUSBType-B interface or USBType-C interface.
3. serial port circuit as claimed in claim 1 or 2, it is characterized in that, described USB connector is female joint.
4. serial port circuit as claimed in claim 1 or 2, it is characterized in that, the metal shell of described USB connector connects protecting field.
5. serial port circuit as claimed in claim 1 or 2, it is characterized in that, described USB connector also comprises ID pin, and this ID pin is unsettled.
6. serial port circuit as claimed in claim 1, it is characterized in that, the model of described transponder chip is MAX3232.
7. an electronic equipment, is characterized in that, comprises the serial port circuit as described in any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520353473.XU CN204759409U (en) | 2015-05-27 | 2015-05-27 | Serial circuits and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520353473.XU CN204759409U (en) | 2015-05-27 | 2015-05-27 | Serial circuits and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204759409U true CN204759409U (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520353473.XU Active CN204759409U (en) | 2015-05-27 | 2015-05-27 | Serial circuits and electronic equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN204759409U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105279121A (en) * | 2015-03-06 | 2016-01-27 | 威盛电子股份有限公司 | USB chip group |
| CN106341742A (en) * | 2016-09-30 | 2017-01-18 | 乐视控股（北京）有限公司 | Interface device |
-
2015
- 2015-05-27 CN CN201520353473.XU patent/CN204759409U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105279121A (en) * | 2015-03-06 | 2016-01-27 | 威盛电子股份有限公司 | USB chip group |
| CN105279121B (en) * | 2015-03-06 | 2018-09-21 | 威盛电子股份有限公司 | USB chip group |
| CN106341742A (en) * | 2016-09-30 | 2017-01-18 | 乐视控股（北京）有限公司 | Interface device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong city of Shenzhen province Nanshan District Guangdong streets two Haitian Road No. 14, block 5D 8 layer software industry base Patentee after: Shenzhen Hengxin data Limited by Share Ltd Address before: 518000, Guangdong Shenzhen hi tech Southern District, Haitian two road 14, software industry base, 5D block, 7, Nanshan District Patentee before: SEMPTIAN TECHNOLOGIES LTD. |