CP82C54-12

Overview

The CP82C54-12 is a CMOS programmable interval timer manufactured by Renesas Electronics. It features three independent 16-bit counters capable of handling clock input frequencies up to 12 MHz. The device operates on a single 5V power supply with a voltage range of 4.5 V to 5.5 V. It supports six programmable timer modes and includes status read-back commands. The component is housed in a 24-pin Plastic Dual In-Line Package (PDIP) and is rated for an industrial operating temperature range from 0°C to +70°C.

Feature Summary

• Three independent 16-bit counters with 12 MHz maximum clock frequency
• Six programmable counter modes including binary or BCD counting
• CMOS output type with 2.5 mA high-level and -2.5 mA low-level output current
• Industrial temperature rating: 0°C to +70°C

Applications

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

Procurement Notes

Verify the specific suffix '12' confirms the 12 MHz speed grade, as variants like CP82C54Z exist with different specifications. Confirm RoHS compliance status via official documentation, as older Intersil/Renesas batches may vary. Check for End-of-Life (EOL) notifications, as this series has faced discontinuation notices from the manufacturer.

Selection Notes

Select the CP82C54-12 when a 12 MHz clock input is required within the industrial temperature range. Ensure the design accommodates the PDIP-24 package footprint. Compare against the IS82C54-12Z if surface-mount PLCC packaging is preferred, noting that package changes do not alter internal functionality unless specified by the datasheet.

Part Context

This part belongs to the 82C54 family, which serves as a CMOS enhancement of the NMOS 8253/8254 timers. It maintains pin compatibility with industry-standard processors such as the Intel 80C86 and 80C286. The 'CP' prefix typically denotes commercial/industrial temperature ranges in Renesas/Intersil nomenclature.

Replacement Considerations

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