MB88304 Description
The MB 88304/88305 have two interfaces: One is the processor interface; C$, LDI, and DI3-DI0, which are used for the proc.
MB88304 Key Features
- 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 88304)
- Easily connectable to MCUs with 8243 interface
- Single +5V power supply