IP82C52

Overview

The Intersil IP82C52 is a high-performance CMOS Serial Controller Interface combining a Universal Asynchronous Receiver/Transmitter (UART) and Baud Rate Generator (BRG) on a single chip. Manufactured using the Scaled SAJI IV process, it supports asynchronous data rates up to 1 Mbaud with a 16 MHz clock input. The device features an 80C86-compatible microprocessor bus interface, on-chip baud rate generation with 72 selectable rates, and interrupt mode with mask capability. It operates on a single +5V supply with low power consumption of approximately 1mA/MHz. The industrial temperature range for this variant spans from -40°C to +85°C.

Feature Summary

• Integrates UART and Baud Rate Generator functions on a single CMOS chip
• Provides 80C86 compatible microprocessor bus oriented interface
• Supports crystal or external clock input for flexible timing configurations
• Includes line break generation and detection capabilities

Applications

• Microprocessor-based serial communication systems
• Modem interface circuits
• Industrial control systems requiring RS-232 compatibility
• Embedded systems needing programmable baud rate generation

Procurement Notes

Verify the specific suffix designation against official Renesas or Intersil documentation to confirm the exact temperature grade and package type. Ensure that the ordering information matches the required industrial specifications. Cross-reference the manufacturer part number with current datasheets to validate availability and compliance status before procurement.

Selection Notes

Select the IP82C52 when an 80C86 compatible UART with integrated baud rate generation is required for industrial environments. Consider the -40°C to +85°C operating range suitability for your application. Evaluate power consumption requirements against the typical 1mA/MHz specification. Confirm pinout compatibility with existing PCB layouts designed for standard 82C52 interfaces.

Part Context

The IP82C52 belongs to the 82C52 family of CMOS serial controllers produced by Intersil, now part of Renesas Electronics. This series represents the CMOS evolution of earlier NMOS designs, offering lower power consumption while maintaining functional compatibility. The component serves as a bridge between microprocessors and serial peripheral devices in various computing and control applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative UART controllers based on pinout and electrical specifications.