MB88311 Overview
11111111111111111111111111111111111111111111111111111111111111111 FUJITSU 111111111111111111111111111111111111111111111111 CMOS INPUT/OUTPUT EXPANDER MB 88310 MB 88311 April 1986 Edition 1.0 CMOS INPUT/OUTPUT EXPANDER The Fujitsu MB 88310/MB 88311 are peripheral integrated circuits that can be connected to a 4-bit or 8-bit single·chip microputer (MCU) to provide ad· ditional I/O ports. Besides furnishing simple I/O...
MB88311 Key Features
- 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
- AND and OR functions provide individual output capability
- Single-bit input/output: Input and output can be intermixed on each port
- High output drive
- Built-in power-on reset circuit
- CS pin for simplified input/output expansion
- Two output circuit types: Open-drain output (MB 88310)
- Easily connectable to MCUs with 8243 interface