IS82C54Z

Programmable Timers And Oscillators Overview

The IS82C54Z 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 within a supply voltage range of 4.5V to 5.5V and supports six programmable timer modes. Designed for compatibility with industry-standard microprocessors, it offers low standby power consumption and TTL-compatible inputs. The component is housed in a 28-pin PLCC package and is rated for an industrial temperature range of -40°C to +85°C.

Programmable Timers And Oscillators Feature Summary

• Three independently programmable 16-bit counters
• Maximum clock frequency of 8MHz
• CMOS output type with 150ns maximum propagation delay
• Industrial temperature range (-40°C to +85°C)

Programmable Timers And Oscillators Applications

• Compatible with 80C86, 80C88, and 80C286 microprocessors
• General-purpose timing and counting applications
• Real-time clock generation

Programmable Timers And Oscillators Part Context

The IS82C54Z belongs to the 82C54 series of programmable timers. It serves as a CMOS enhancement of the NMOS 8253 architecture, providing higher speed and lower power consumption while maintaining pin compatibility with legacy designs. This specific variant is distinguished by its 8MHz operational limit and industrial-grade temperature rating.