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| NSC810A |
RAM, I/O unit and Timer |
| Comment: | 128 x 8 bits of RAM.
Three programmable I/O ports (22 bits).
2 programmable 16-bit timers/counters.
NSC810A is a 2.5 MHz part.
NSC800A-1 is a 1 MHz part.
NSC800A-4 is a 4 MHz part. |
| Packages: | 40-pin DIP, 44-pin ceramic CLCC, 44-pin PLCC |
| Manufacturers: | National Semiconductor |
| |
| NSC831 |
Parallel I/O unit |
| Comment: | 3 programmable I/O units (22 bits). |
| Packages: | 40-pin DIP, 44-pin ceramic CLCC, 44-pin PLCC |
| Manufacturers: | National Semiconductor |
| |
| NSC851 |
HP-IL interface loop controller |
| Manufacturers: | National Semiconductor |
| |
| NSC858 |
Universal asynchronous receiver/transmitter |
| Comment: | Maximum baud rate up to 1 Mbit/sec. |
| Packages: | 28-pin DIP, 28-pin PLCC, 28-pin CLCC |
| Manufacturers: | National Semiconductor |
| |
| NSC859 |
Interrupt control unit |
| Comment: | Handles up to 8 prioritized interrupts. |
| Packages: | 24-pin DIP, 28-pin PLCC |
| Manufacturers: | National Semiconductor |
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