UMC UM8253
The UM8253 is a programmable counter timer device designed for use as an microcomputer peripheral. It uses NMOS technology with a single +5V supply and is packaged in a 24-pin plastic DIP. It is organized as 3 independent 16-bit counters, each with a count rate of up to 2.6 MHz.| Part No. | UM8253 |
|---|---|
| Datasheet | UM8253 Download |
| Manufacturer |  UMC |
| Description | Programmable Interval Timer |
| Buy | Stock & Price |
FEATURES
● MCS-85™ compatible UM8253-5● 3 independent 16-bit counters
● DC to 2.6 MHz
● Programmable counter modes
● Count binary or BCD
● Single +5V supply
GENERAL DESCRIPTION
All modes of operation are software programmable. *MCS-85™ is the trademark of Intel microsystem. Pin Configuration Block Diagram 07 06 Os 04 03 O2 0, 00 ClK 0 OUT 0 GATE 0 GNO VCC WR RO CS Al Ao ClK 2 OUT.2 GATE 2 ClK 1 GATE 1 OUT 1 .07-00 Ao AI Cs READ/ WRITE LOGIC 7-143 Absolut-eMAXIMUM RATINGS
* Ambient Temperature Under Bias TA ...... O°C to 70°C Storage Tempel'ature TSTG ..........-65°C to +l50°C Voltage on Any Pin with Respect to Ground ., ..................... -0.5V to +7
