AMD Am8253-5
The Am8253/Am8253-5 are programmable counter/timer chips designed for use as Am8080NAm8085A Family peripherals. They use NMOS technology with a single +5V supply and are direct replacements for Intel's 8253/8253-5. Each device is organized as three independent 16-bit counters, each counter having a rate of up to 2.5MHz.| Part No. | Am8253-5 |
|---|---|
| Datasheet | Am8253-5 Download |
| Manufacturer |  AMD |
| Description | Programmable Interval Timer |
| Buy | Stock & Price |
GENERAL DESCRIPTION
All modes of operation are software programmable. For improved performance, see Am9513 System Timing Controller. BLOCK DIAGRAM CONNECTION DIAGRAM Top View Note: Pin 1 is marked for orientation. ClKO GATE 0 aUTO ClK 1 GATE 1 OUT 1 07 24 VCC 23 WR AD 21 cs 20 Al Am8253 19 AO 01 Am8253-5 18 ClK2 17 OUT 2 16 GATE 2 10 15 ClK 1 11 14 GATE 1 12 13 OUT 1 ClK 2 GATE 2 OUT 2 MOS-153 07-00 ClK N GATE N OUT N RO WR CS AO-A1 VCC GNO PIN NAMES Data bus (8-bit) Counter clock inputs Counter gate inputs Counter outputs Read counter Write command or data Chip select Counter select +5 Volts Ground ORDERING INFORMATION Package Type Molded DIP Hermetic DIp● Ambient Temperature O°C :s: TA :s: +70°C "Hermetic = Ceramic = DC = CC = 0-24-1. Order Numbers AM8253PC/P8253 AM8253DC/D8253 AM8253CC/C8253 AM8253-5PC/P8253-5 AM8253-5DC/D8253-5 AM8253-5CC/C8253-5 7-43 6 MOS-154 Am8253/Am8253-5 FUNCTIONALDESCRIPTION
General The Am8253 is a programmable interval timer/counter specifically designed for use with the Am9080A Microcomputer systems.
