93C86AT-I/ST

Memory IC Overview

The Microchip Technology 93C86AT-I/ST is a 16-kbit Microwire-compatible serial EEPROM housed in an 8-lead TSSOP package. It features a flexible memory organization selectable between 2048 x 8-bit and 1024 x 16-bit configurations via the ORG pin. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports clock frequencies up to 3 MHz. Designed for industrial applications, it functions reliably across temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Supports dual memory word size configurations (8-bit or 16-bit) through hardware pin selection.
• Includes self-timed write cycles with automatic erase-before-write functionality to ensure data integrity.
• Utilizes low-power CMOS technology optimized for standard 5.0 V operation.

Memory IC Applications

• Industrial control systems requiring nonvolatile parameter storage
• Consumer electronics utilizing Microwire bus interfaces
• Automotive modules operating within specified temperature ranges

Memory IC Procurement Notes

Verify that the specific suffix 'I' corresponds to the industrial temperature range (-40°C to +85°C) and 'ST' indicates the TSSOP-8 package. Confirm the presence of the 'A' designation for enhanced write cycle endurance if required by the design. Ensure the system voltage aligns with the 4.5 V to 5.5 V operational limits before integration.

Memory IC Selection Notes

Select this component when a Microwire interface is preferred over SPI. The 93C86AT variant offers higher write endurance compared to standard versions. Consider the TSSOP-8 package for surface-mount assembly constraints. Verify that the target application requires the specific 16 kbit capacity and does not necessitate lower voltage operation.

Memory IC Part Context

This part belongs to the 93C86 series of Microwire-compatible serial EEPROMs from Microchip Technology. The series provides various packaging options and voltage ratings. The 'T' suffix typically denotes tape-and-reel packaging, while 'I' specifies the industrial temperature grade. This family is designed for cost-effective, reliable nonvolatile data retention in embedded systems.

Memory IC Replacement Considerations

Compatible substitutes include the 93C86C-I/ST for identical electrical performance and the 93LC86C-I/ST for similar functionality. Cross-reference datasheets to confirm pinout compatibility and verify that the alternative part number meets the specific voltage and temperature requirements of the existing design.