P82C54-2

Programmable Timers And Oscillators Overview

The P82C54-2 is a CMOS Programmable Interval Timer manufactured by Rochester Electronics, LLC. It features three independent 16-bit counters and supports six programmable modes. The device utilizes advanced CHMOS III technology for high-speed operation with a maximum clock frequency of 8 MHz. It operates on a single 5V supply (4.5V to 5.5V) and includes an 8-bit parallel data bus with direct addressing capabilities. The component is housed in a 24-pin DIP package and functions within a temperature range of -40°C to +85°C.

Programmable Timers And Oscillators Feature Summary

• Three independently programmable 16-bit counters
• Six distinct programmable timer modes
• High-speed CMOS architecture supporting up to 8 MHz clock input
• Direct parallel interface compatible with standard microprocessors

Programmable Timers And Oscillators Applications

• Industrial control systems requiring precise timing intervals
• Real-time clock generation in embedded controllers
• Event counting applications in automated machinery
• Pulse width modulation signal generation

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout compatibility and electrical characteristics. Ensure that the procurement source provides traceability to the original fabrication lot. Confirm that the component meets the required environmental specifications for the intended operating temperature range before finalizing acquisition.

Programmable Timers And Oscillators Selection Notes

Select this component when a reliable, high-speed interval timer is needed for legacy or industrial systems. The 8 MHz speed rating suits applications requiring faster response times than older NMOS equivalents. Verify that the system design accommodates the 5V logic levels and the 24-pin DIP form factor constraints during the initial hardware layout phase.

Programmable Timers And Oscillators Part Context

This part belongs to the 82C54 family of programmable interval timers, which are enhanced CMOS versions of the classic NMOS 8253. Rochester Electronics typically sources and distributes these components as surplus or lifecycle management parts. The series is widely recognized for its compatibility with various industry-standard microprocessor architectures.

Programmable Timers And Oscillators Replacement Considerations

The MD82C54/B is a documented military-grade equivalent offering similar functionality with extended temperature ranges. Verify pin compatibility and voltage tolerances before substituting other variants from the 82C54 family.