| Hitachi HMCS40
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|
|
|
| Developer |
Hitachi
|
| Manufacturer |
Hitachi
|
| Type |
microcontrollers
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| Production |
1978-1995
|
| ISA |
HMCS40
|
| Word size |
4 bit 0.5 octets
1 nibbles
|
| Technology |
pMOS, CMOS
|
| Clock |
400 kHz-4.5 MHz
|
| Package |
DIP28, DIP42, QFP64
|
The Hitachi HMCS40 is a family of 4-bit microcontrollers developed by Hitachi and introduced in the late 1970s and continued well into the 90s. Two types of each component were manufactured, one using pMOS for low cost and another using CMOS where lower power was more desired. Hitachi later also introduce a replacement series called the Template:hitach.
The chips contained 4-bit ALU performing BCD arithmetic. 512 to 2,048 Words (10-bit ea) of program ROM. Additional 128 Words (10-bit ea) of pattern ROM. 32 to 160 digits (4-bit ea) of data RAM. Chips also contained Event/Timer-Counter and 22-44 I/O lines. Output was aimed for driving dot matrix Liquid Crystal displays. The HMCS40 was used in a very large array of games, toys, controllers, and office equipment, specifically many devices with VFDs.
Devices
| Model |
ROM |
RAM |
Registers |
Stack Registers |
I/O Lines |
Part No.
|
| HMCS42 |
512x10-bit |
32x4-bit |
4 |
2 |
22 |
HD38702
|
| HMCS43 |
1024x10-bit |
80x4-bit |
6 |
3 |
32 |
HD38750, HD38755
|
| HMCS44 |
2048x10-bit |
160x4-bit |
8 |
4 |
32 |
HD38800, HD38805
|
| HMCS45 |
2048x10-bit |
160x4-bit |
6 |
4 |
44 |
HD44820, HD44828
|
| HMCS46 |
4096x10-bit |
256x4-bit |
8 |
4 |
32 |
HD44840, HD44848
|
| HMCS47 |
4096x10-bit |
256x4-bit |
6 |
4 |
44 |
HD44860, HD44868
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Design
ISA
Documents
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