Semiconductor & Computer Engineering
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HD404720 - Hitachi
| Hitachi HD404720 Family | |
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| |
| Developer | Hitachi |
| Manufacturer | Hitachi |
| Type | microcontrollers |
| ISA | HD404720 |
| Word size | 4 bit 0.5 octets
1 nibbles |
| Technology | CMOS |
| Clock | 100 kHz-1.12 MHz |
| Package | DIP64, CerDIP64, QFP64 |
The HD404720 Series was a family of 4-bit microcontrollers developed by Hitachi.
Contents
Members
| Family Members | |||||
|---|---|---|---|---|---|
| Part | program ROM | pattern ROM | RAM | I/O Ports | Notes |
| HD404720 | 16,384x10-bit | 8,192x10-bit | 512x 4-bit + 64-digit VFD RAM | 56 | |
| HD4074720 | 16,384x10-bit | 8,192x10-bit | 512x 4-bit + 64-digit VFD RAM | 56 | ZTAT version |
| HD404728 | 8,192x10-bit | 512x 4-bit + 64-digit VFD RAM | 56 | ||
| HD404729 | 16,384x10-bit | 8,192x10-bit | 512x 4-bit + 64-digit VFD RAM | 56 | |
| HD4074729 | 16,384x10-bit | 8,192x10-bit | 512x 4-bit + 64-digit VFD RAM | 56 | ZTAT verson |
Design
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ISA
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Documents
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Facts about "HD404720 - Hitachi"
| designer | Hitachi + |
| full page name | hitachi/hd404720 + |
| instance of | microcontroller family + |
| instruction set architecture | HD404720 + |
| main designer | Hitachi + |
| manufacturer | Hitachi + |
| name | Hitachi HD404720 Family + |
| package | DIP64 +, CerDIP64 + and QFP64 + |
| technology | CMOS + |
| word size | 4 bit (0.5 octets, 1 nibbles) + |