CP82C54-12Z

Overview

The CP82C54-12Z is a CMOS programmable peripheral interval timer manufactured by Renesas Electronics Corporation. It features three independent 16-bit counters capable of handling clock input frequencies up to 12 MHz. The device operates within a supply voltage range of 4.5 V to 5.5 V and exhibits a maximum propagation delay of 100 ns. It is housed in a 24-pin Dual In-line Package (PDIP) designed for through-hole mounting. The component supports six programmable timer modes and is compatible with industry-standard microprocessors.

Feature Summary

• Three independent 16-bit programmable counters
• Maximum clock frequency of 12 MHz
• CMOS output type with 100 ns max propagation delay
• Operates on 4.5 V to 5.5 V supply voltage

Applications

• Programmable interval timing circuits
• Frequency generation systems
• Synchronization logic in microprocessor-based designs

Procurement Notes

Verify the End-of-Life status before procurement, as the manufacturer indicates this product line is subject to obsolescence. Confirm availability through authorized distributors, noting that stock may be limited or restricted. Ensure compliance with RoHS requirements specified in the official datasheet prior to ordering.

Selection Notes

Select the CP82C54-12Z when a 12 MHz clock speed is required for precise timing applications. Compare against the standard 8 MHz variant if lower power consumption is prioritized over speed. Verify that the PDIP-24 package aligns with the target PCB layout constraints and thermal management requirements.

Part Context

This component belongs to the 82C54 series of CMOS programmable timers, serving as an enhanced version of the NMOS 8253. It maintains pin compatibility with legacy NMOS devices while offering improved performance characteristics. The 'CP' prefix typically denotes commercial temperature range variants produced under specific manufacturing qualifications.

Replacement Considerations

Direct functional substitutes include the IS82C54-12Z and CS82C54-12Z. These parts share identical electrical specifications and pinouts but may differ in packaging suffixes or minor manufacturing revisions. Verify package compatibility when swapping between these identifiers.