MB88305 Datasheet | Fujitsu Semiconductor Limited

FUJITSU MB 88304 MB 88305 April 1986 Edition 1.1 NMOS INPUT/OUTPUT EXPANDER The Fujitsu MB 88304/MB 88305 are peripheral integrated circuits that can be connected to a 4-bit or 8-bit single-chip microputer (MCU) to provide additional I/O ports. Besides furnishing simple I/O port expansion, the MB 88304 and MB 88305 can AND or OR port data with data from the MCU, on instruction from the MCU. The MB 88304/MB 88305 are pseudo-bidirectional ports. They are accessed in 4-bit units, but each individual bit can be used for either input or output, and input and output can be intermixed. The interface to the MCU requires only...