The MSM82C53-2RS/GS/JS is a programmable universal timer designed for use in microcomputer systems. It is based on silicon gate CMOS technology, requiring only 100 mA (max.) standby current when the chip is in the nonselected state. During timer operation, power consumption is still very low - only 8 mA (max.) at 8 MHz of current required. The device consists of three independent counters, and can count up to a maximum of 8 MHz (MSM82C53-2). The timer features six different counter modes, and binary count/BCD count functions. Count values can be set in byte or word units, and all functions are freely programmable.
The MSM82C53-2RS/GS/JS is a CMOS programmable interval timer designed for microcomputer systems. It features three independent 16‑bit down‑counters, six counter modes, binary and BCD counting, and operates with low power consumption.
The datasheet lists electrical characteristics such as a maximum operating frequency of 8 MHz, standby current of 100 µA (max), operating current of 8 mA (max) at 8 MHz, and a supply voltage range of 3 V to 6 V. Package options include 24‑pin DIP, 28‑pin QFJ, and 32‑pin SSOP, with operating temperature from –40 °C to +85 °C. Pin functions, timing charts, and basic operation procedures are also detailed.
| Maximum operating frequency | 8 MHz |
|---|---|
| Standby current (max) | 100 µA |
| Operating current (max) at 8 MHz | 8 mA |
| Supply voltage range | 3 V to 6 V |
| Package types | 24‑pin DIP, 28‑pin QFJ, 32‑pin SSOP |
| Operating temperature range | –40 °C to +85 °C |
| Number of independent counters | Three 16‑bit down‑counters |
The timer can operate up to 8 MHz.
It requires a single power supply between 3 V and 6 V.
It contains three independent 16‑bit down‑counters.
The standby current is up to 100 µA.