CP82C54-12S2580

Overview

The CP82C54-12S2580 is a programmable timer integrated circuit manufactured by Intersil, belonging to the 82C54 series. It integrates three independent 16-bit counters capable of generating precise timing signals or counting events. The device operates on a single 5V power supply with a voltage range of 4.5V to 5.5V. It supports clock frequencies up to 5MHz and features CMOS outputs for low power consumption. The component is designed for compatibility with standard microprocessor buses, facilitating its use in digital control systems requiring accurate time-base generation.

Feature Summary

• Contains three independent 16-bit programmable counter/timer channels
• CMOS technology ensures low power dissipation and high noise immunity
• Compatible with 8080, 8085, 8086, 8088, 80186, 80188, 80286, 80386, and 68000 bus architectures
• Supports six distinct operating modes per channel including interrupt on terminal count and rate generator

Applications

• System timing and real-time clock generation in embedded controllers
• Pulse width modulation (PWM) signal generation for motor control
• Event counting and frequency measurement in test equipment
• Watchdog timer implementation for system reliability monitoring

Procurement Notes

Verify the specific suffix 'S2580' against official Intersil documentation to confirm package type and temperature grade, as generic part numbers may vary. Confirm end-of-life status and availability through authorized distributors, as this component may be discontinued. Ensure compliance with RoHS directives if required for the target application environment.

Selection Notes

Select this component when three independent 16-bit timers are required within a single IC footprint. Compare propagation delay specifications against system clock requirements to ensure timing accuracy. Verify that the operating temperature range meets the environmental conditions of the final assembly. Consider pinout compatibility with existing PCB layouts if replacing older NMOS versions.

Part Context

The CP82C54 series represents the CMOS version of the classic 8254/8253 programmable interval timers. Unlike their NMOS predecessors, these devices offer lower power consumption and higher speed capabilities while maintaining functional compatibility. The 'CP' prefix typically denotes plastic packaging variants produced by Intersil, now part of Renesas Electronics.