CS82C54-12

Overview

The CS82C54-12 is a high-performance CMOS Programmable Interval Timer manufactured by Renesas Electronics Corporation. It features three independent, fully static 16-bit counters capable of handling clock input frequencies up to 12MHz. The device operates on a single 5V power supply with a voltage range of 4.5V to 5.5V and includes an internal propagation delay maximum of 100ns. Designed for low-power applications, it utilizes advanced CMOS technology while maintaining compatibility with industry-standard microprocessors.

Feature Summary

• Three independent 16-bit programmable counters
• Maximum clock frequency of 12MHz
• CMOS output type with 2.5mA drive current
• PLCC-28 surface mount package

Applications

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

Procurement Notes

Verify component authenticity through authorized channels as the part status is End-of-Life. Confirm RoHS compliance details via official datasheets. Check moisture sensitivity levels (MSL) before soldering. Ensure storage conditions meet humidity requirements to prevent damage prior to use.

Selection Notes

Select this model when a 12MHz clock speed is required within the 82C54 family. Compare against CS82C54-10 for 10MHz or CS82C54-8 for 8MHz variants if lower speeds suffice. Verify PLCC-28 footprint compatibility for PCB design. Consider operating temperature range of 0°C to +70°C for environmental fit.

Part Context

The CS82C54-12 belongs to the 82C54 series of CMOS programmable timers. It serves as an enhanced version of the NMOS 8253/8254 standards. The suffix '12' denotes the 12MHz maximum clock frequency capability. It is compatible with Intersil/Renesas 80C86, 80C88, and 80C286 processors.

Replacement Considerations

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