CS82C54Z

Overview

The CS82C54Z is a high-performance CMOS programmable interval timer manufactured by Renesas Electronics Corporation. It features three independent 16-bit counters capable of handling clock input frequencies up to 8MHz. The device operates on a single 5V power supply with a voltage range of 4.5V to 5.5V. Key electrical parameters include a maximum propagation delay of 100 ns and an operating current of 10 mA. It utilizes a 28-PLCC surface-mount package and supports an industrial temperature range from 0°C to +70°C.

Feature Summary

• Three independent 16-bit programmable counters
• CMOS output type with 2.5 mA drive capability
• Maximum propagation delay of 100 ns
• Single 5V power supply operation (4.5V–5.5V)

Applications

• Event counting
• Elapsed time indication
• Programmable one-shot generation

Procurement Notes

Verify component authenticity through authorized channels as the part may be subject to obsolescence or limited availability. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to procurement. Check for specific anneal requirements if indicated in the official datasheet. Ensure storage conditions meet humidity sensitivity standards to prevent damage before soldering.

Selection Notes

Select the CS82C54Z when three independent 16-bit timers are required in a surface-mount PLCC-28 package. Ensure the application environment stays within the 0°C to +70°C operating temperature range. Verify that the system clock frequency does not exceed 8MHz. Consider the 10mA operating current and 4.5V–5.5V supply voltage constraints during power budgeting.

Part Context

The CS82C54Z belongs to the 82C54 series of programmable timers, which are CMOS versions of the industry-standard 8253. This series is designed for compatibility with various microprocessors, including the 80C86 and 80C88. The device offers low power consumption while maintaining performance comparable to or greater than equivalent NMOS products.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.