| No. |
Part Name |
Description |
Manufacturer |
| 1 |
UA855D |
Programmable parallel input/output circuit, maximum clock frequency 4 MHz, two 8 bit bidirectional channels, possibly equivalent Z80A-PIP |
RFT |
| 2 |
UA8563D |
Programmable serial input/output circuit, only for asynchronous operation, maximum clock frequency 4 MHz, possibly equivalent Z80A-DART |
RFT |
| 3 |
UA856D |
Programmable serial input/output circuit, maximum clock frequency 4 MHz, possibly equivalent Z80A-SIO |
RFT |
| 4 |
UA857D |
Counter time circuit, 4 independent channels, maximum clock frequency 4 MHz, possibly equivalent Z80-CTC |
RFT |
| 5 |
UA858D |
Programmable peripheral circuit (DMA) for Direct Memory Access, maximum clock frequency 4 MHz, possibly equivalent Z80-DMA |
RFT |
| | | |
