MB88311 expander equivalent, cmos input / output expander.
* CMOS Version of Fujitsu MB 88304/88305
* Four 4-bit I/O ports (16 lines)
* Four Functions: Parallel input, parallel output, AND output, and OR output
The MB 88310/88311 have two interfaces: One is the processor interface; CS, LDI, and DI3-DIO, which are used for the processor to communicate with the MB 88310/88311 devices. Another is the expansion I/O ports; Ports A, B, C, and D, which serve as a.
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