IMS82C55AZ

CMOS Programmable Peripheral Interface

Number of I/Os: 24 I/O
Interface Type: Parallel
Maximum Clock Frequency: 8 MHz
Interrupt Output: With Interrupt
Operating Supply Voltage: 5 V
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 85 C
Features: Fully TTL compatible
Output Current: 2.5 mA

data sheet: IMS82C55AZ.pdf