CP82C54

Overview

The CP82C54 is a CMOS programmable peripheral interface timer manufactured by Renesas Electronics. It integrates three independent 16-bit counters capable of handling clock input frequencies up to 8 MHz. The device operates within a supply voltage range of 4.5 V to 5.5 V and features a maximum propagation delay of 150 ns. Designed for commercial temperature ranges from 0°C to +70°C, it utilizes a 24-pin PDIP package with through-hole mounting. The output type is specified as CMOS, providing high-speed performance compatible with standard microprocessor buses.

Feature Summary

• Three independent 16-bit programmable counters
• CMOS technology with 8 MHz maximum clock frequency
• 150 ns maximum propagation delay
• Commercial operating temperature range (0°C to +70°C)

Applications

• Programmable interval timing circuits
• Microprocessor system timing support
• Digital control applications requiring precise time bases

Procurement Notes

Verify component authenticity due to End-of-Life status. Confirm package integrity and pin compatibility during sourcing. Check for specific manufacturing lot dates if long-term reliability is required. Ensure compliance with current environmental regulations regarding lead content in legacy components.

Selection Notes

Select the CP82C54 when three independent timers are needed at 8 MHz speeds. Compare against the CS82C54-12Z for higher speed requirements or different packaging. Verify that the 24-pin PDIP form factor fits the target PCB layout constraints. Ensure the 4.5V to 5.5V supply range matches the system power design.

Part Context

This component belongs to the 82C54 family of programmable timers. It serves as a CMOS enhancement to earlier NMOS versions like the 8253. The part number indicates the commercial temperature grade and 8 MHz speed variant within the Intersil/Renesas portfolio.

Replacement Considerations

Public confirmed substitute part numbers: CS82C54-12Z, ID82C54, CD82C54-12.