JPH0336611A - Computer module - Google Patents

Abstract

PURPOSE:To miniaturize a substrate by mounting a part of a control circuit on a substrate as a hybrid IC structure in which a unipolar IC chip and a bipolar IC chip are mixed. CONSTITUTION:In a calendar module 42, a CMOSIC chip 111 and bipolar IC chips 112, 113 are mixed and mounted onto a substrate 110, the CMOSIC chip 111 whose power consumption is small is used for oscillation for a calendar clock, and the bipolar IC chips 112, 113 whose power consumption is large are offered to a different circuit which requires a large current. In such a manner, by constituting the calendar module 42 by forming it to a hybrid IC by using plural IC chips, an area occupied by a calendar circuit in the substrate is reduced, and a computer module can be miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a computer module that is a modularized computer.

Conventional technology Conventionally, there are computers that are made into boards.

One example is shown in FIGS. 11 and 12, which is a computer board 10 manufactured by Micromint.

In the figure, 11 is the CPU, 12 is a pouch made by Zymos (
(registered trademark) (1), 13 is pouch (2), 14.15 is pouch (3), 16.17 is BiO2-ROM (Basic Input Output System - Lead
only memory), 18 is 18 256 bits D
Memory consisting of RAM (dynamic random access memory) 19, 20 bipolar FROM, 2
1 is a delay line, 22 is a group of ICs that create, for example, access timing, 23 is a calendar circuit section, and 24 is a keyboard controller.

Computer board 10 includes all the above components on board 2.
This is a configuration in which it is mounted only on the top surface of 5.

26 is a terminal group, which is provided along the - side of the board 25.

This computer board 10 is assembled by inserting the terminal group 26 into a connector (not shown) of a personal computer main body (not shown) and standing it up.

Problems to be Solved by the Invention The calendar circuit section 23 has a structure in which a plurality of electronic components are mounted on a board 25.

Therefore, a relatively large area is required for the calendar circuit section 23, and the board 25 becomes an intervening type thereof.

Also, for miniaturization, the calendar circuit section 23 is a custom IC.
It is conceivable to do so, but doing so would require development costs and be expensive.

The calendar circuit section 23 is actually provided with a clock oscillation circuit for the calendar function and a speaker drive circuit for the 1014 function.

Due to its nature, the clock oscillation circuit needs to be driven by a dry cell battery, and when integrated into an IC, it is configured with a 0MO8 type IC that consumes little power.

On the other hand, since the speaker drive circuit consumes a large amount of power,
It cannot be configured with an MO8 type IC, but must be configured with a bipolar type IC. Therefore, the entire circuit section is sent to the calendar.
It is actually difficult to implement an IC using this chip.

An object of the present invention is to provide a combinator module that solves the above problems.

Means for Solving the Problems The present invention is a computer module in which a board is assembled with a CPU, a memory circuit, and control circuit parts constituting a computer, and which is a part of the control circuit parts. , a part of a control circuit having a hybrid integrated circuit structure in which a unipolar IC chip and a bipolar IC chip are mixed is mounted on the substrate.

By using a functional hybrid integrated circuit, it is possible to achieve a smaller size compared to a conventional device that is not a hybrid integrated circuit.

Example ■About the basic structure of the combinator module.

2 and 3 are a plan view and a bottom view, respectively, of a computer module 3o according to an embodiment of the present invention. The computer module 30 is housed in a case 82 as shown in FIGS. 4 and 5.

The computer module 30 has a structure in which various electronic components are mounted separately on the upper and lower surfaces of a single board, and terminal groups are arranged around the board to achieve miniaturization.

Reference numeral 31 denotes a single rectangular substrate, which is as small as 98 m x 55 m+, approximately the size of a compact cassette.

32 is a CPU, 33 is a pouch (registered trademark) (1), 34
is Pouch (registered trademark) (2), 35-1, 35-2 is Pouch (registered trademark) (3), j6.37 is BiO2-R
OM, 38.39 is DRAM, 40 is bipolar PRO
M, 41 is a day line, 43 is a custom [C144 is a 4°-board controller, 42 is a calendar module which is a main part of the present invention, and is mounted separately on the upper surface 31a and lower surface 31b of the board 31.

Pouch (1), (2), (3), 33.34°35-+
, 35-2 is an IC. Also each pouch (1), (2)
, (3), 33.34.35-1゜35-2 is DRAM
etc., and in this case, only a slight change in the circuit is required.

Reference numeral 58 denotes a bottle end °I, which is arranged around the bag 31.

Pouch (3) 35-+, 35-2, B IO
XROM36, 37, DRAM38.39, Custom I
C43 constitutes a memory circuit component.

Pouch (1) 33. Pouch (2) 34. Calendar module 42 and keyboard ``Citrolla'' 44, which will be described later, are connected to I!
+! Configures 0 circuit components.

■ Regarding the personal computer to which the computer module 30 is applied and the circuit configuration of the computer module 30.

FIG. 5 shows a system configuration diagram of a general personal computer to which the computer module of the present invention is applied.

In the figure, 60 is a versatile computer main body, and a combination module 30. which is the subject of the present invention. Interface module 1- for controlling input/output to external devices
Le 61. Expanded memory 62. DC/DC converter 63.
It is composed of a reset circuit 64 and the like. The combination module 30 is provided with an external terminal, and Na1i pressure is applied from the AC adapter 65 via the DC/DC converter 63, and the keyboard and external device 6
Each scale information from 6 is supplied to perform various arithmetic processing.

The interface module 61 includes a floppy disk Il+ control circuit 68 . A magnetic disk thread control circuit 71 that controls the Ia disk 70. A serial input/output interface 73 that performs input/output control for the modulator/demodulator 72. A programmable sub-column input/output interface 75 for input/output to the printer 74. Input/output to motor 76! It consists of a display interface 77 that performs I+011.

FIG. 6 shows a detailed block diagram of the module 30 shown in FIG. Since the basic functions of this device are the same as conventional ones, an outline of its operation will be explained. In FIG. 6, the CPU 32 is a computer module 1-
It controls the entire system 3o, and is configured to perform control according to a predetermined program. Pouch (3) 35
-+ is an address buffer, which buffers the address specified from the CPLI 32, and uses this address to control the DRAM 38.39 and 8108108-RO, which will be described later.

An address such as 37 is specified. Pouch (3) 35-2
is a data buffer that buffers data output under the control of the CPLJ 32, and this data is sent to an external circuit via various circuits within the computer module 30 and the bin terminal 58 for predetermined processing.

When driving DRAM38.39, custom IC4
The access timing control signal created in step 3 is used, and the access timing is created in the delay line 41 based on this access timing control signal.
38.39 addressing is done. Note that the bipolar F ROM 2O allocates so-called memory according to this access.

The porch (2) 34 is composed of a DMA (direct memory access) interface 34a, a timer 34b0, and an interrupt control circuit 34C for creating processing time for synchronizing hardware and software. Furthermore, the calendar module 42 has a crystal oscillator, etc., which is a clock oscillation source for a clock for displaying the date, and the calendar module 42 has a crystal oscillator, etc.
The date is displayed by supplying a clock to the calendar control circuit 33. The keyboard controller 44 serves as a keyboard control interface that outputs specified low numbers from an external keyboard to predetermined various circuits within the combi-tar module 30, and outputs controlled low numbers from the CPU 32 to the first board. Operate. ■ Calendar module 4
About 2.

1, 2 and 3 illustrate calendar module 42. FIG. FIG. 4 is a circuit diagram of the calendar module 42.

The calendar module 1-42 is mounted on the substrate 110 using a commercially available
A MO8 IC chip 111 and a commercially available bipolar IC chip 112. The 0MO8 IC chip 111 with low power consumption is used for calendar clock oscillation, and the high power consumption bipolar IC chip 112. 113 is used for another circuit that requires a user-friendly IT style.

The calendar module 42 has a hybrid integrated circuit structure as described above, and is miniaturized to about 1/6 of the area occupied by the calendar circuit section 23 in FIG. 11.

CMO8IC chip 111ha model number 14069no (7)
The calendar clock oscillation circuit 115 is configured by connecting the inverters 111-r to 111-3 with a crystal oscillator 114 and the like.

This oscillation circuit 115 is operated by a battery 116 due to its nature.

Here, the oscillation circuit 115 is exclusively 0MO8I C chip 11
It is configured using 1. Therefore, consumption of the battery 116 is suppressed. Note that the battery 116 is
It is provided not on the data module 30 but on the board of the personal computer main body to which it is assembled.

The bipolar IC chip 112 is of type II 74707 and consists of non-inverters 112-+ to 113-4. Also, the bipolar IC pushbutton 113 has a model number of Al.
3O3, inverter 113-+~113
- Consists of 4.

Non-inverter 112-+, 112-2, Inverter 111-4 to 111-s, 1
13-3, 1134 etc. are gate circuit 1
17.

Further, the inverters 113-+, 113-2, non-inverters 112-a to 112-s, etc. constitute a speaker drive circuit 118 that requires a large current.

As described in detail, according to the present invention, since the configuration is a hybrid integrated circuit using a plurality of IC chips, individual I/O
Compared to assembling C chips individually packaged, a considerable amount can be integrated into 4×1, and it is also cheaper than custom ICs, making computer modules smaller and cheaper. It has the advantage of being able to

[Brief explanation of drawings]

Fig. 1 is a plan view of the calendar module 1 which constitutes the essential part of the present invention, Fig. 2 is its front view, Fig. 3 is its side view 1, and Fig. 4 is the circuit of the calendar module 1 of Fig. 1. Fig. 5 is a plan view of a computer module according to an embodiment of the present invention; Fig. 6 is a bottom view of the combinator module in Fig. 5; Fig. 7 is a top view of a computer module according to an embodiment of the invention; Fig. 8 is a partially cutaway front view showing the state in which the combinator module of Fig. 5 is fitted in the case, with the case cut away; Figure 9 is a system configuration diagram of a general personal computer to which the input module shown in Figures 5 and 6 is applied; Figure 10 is a block diagram of the module shown in Figures 5 and 6; FIG. 11 is a plan view of the conventional example, and FIG. 12 is a front view thereof. 30... Combiator module 1-le, 31... Board,
32...CPLJ, 33...Pouch (1), 34.
... Pouch (2), 35 1.35 2... Pouch (
3), 36.37...B 1103-RO, 38,3
9...DRAM140...Bipolar PROM, 4
3...Custom IC144...Keychain control [
I-ra, 58... Bin terminal, 60... Personal combination 1-unit body, 82... Case 110... Board,
111...0MO8IC chip, 112. 113・
...Bipolar IC chip, 114...Crystal oscillator,
115...Oscillation circuit, 116...Battery, 117...
- Gate circuit, 118... speaker drive circuit.

Claims (1)

[Claims] A computer module in which a CPU, a memory circuit, and control circuit components constituting a computer are assembled on a board, and a unipolar IC chip and a bipolar IC chip are part of the control circuit components. A computer module having a configuration in which a part of a control circuit having a mixed integrated circuit structure is mounted on the above board.