intersil 82C55

part number	82C55
manufacturer	intersil
lead free	???
prefix	U
Description	82C55
octopart part number
package
RoHS	???

pin 23 activelow	True
pin 21 description	chip select (active low)
pin 2 description	data bus
pin 13 description	counter 1 output
pin 20 description	address bus
pin 4 description	data bus
pin 7 description	data bus
pin 8 description	data bus
pin 6 description	data bus
pin 19 description	address bus
pin 16 description	counter 2 gate input
pin 3 description	data bus
pin 5 description	data bus
pin 21 activelow	True
pin 18 description	counter 2 clock input
pin 24 description	supply voltage
pin 17 description	counter 2 output
pin 14 description	counter 1 gate input
pin 15 description	counter 1 clock input
Maximum clock input frequency	8 (8254) 10 (8254-2)MHz
pin 23 description	write enable (active low)
pin 10 description	counter 0 output
pin 12 description	ground
pin 9 description	counter 0 clock input
pin 11 description	counter 0 gate input
pin 22 activelow	True
pin 1 description	data bus
pin 22 description	read enable (active low)

Reference Designs (0)

This part isn't used in any public projects. Bit of a shame really.