The UPD7201 by NEC is a MULTI-PROTOCOL SERIAL CONTROLLER. Below is the official datasheet preview.
| Part number | UPD7201 |
|---|---|
| Manufacturer | NEC |
| File Size | 547.82 KB |
| Description | MULTI-PROTOCOL SERIAL CONTROLLER |
| Datasheet |
 UPD7201-NEC.pdf
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NO. 19 00.07 PIN NAME System Data Bus (bidirectional, 3 statel DESCRIPTION The system data bus transfers data and commands between the processor and the ,uPD7201. DO is the least significant bit.25 B/A Channel A or B Select (input, High selects Channel BI This input defines which channel is accessed during a data transfer between the processor and the !,P07201. 24 C/o - 23 CS Control or Data Select !input, High selects Cantrall This input defines the type of in
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