93AA86BT-I/SN

Memory IC Overview

The Microchip Technology 93AA86BT-I/SN is a 16K bit low-voltage serial EEPROM utilizing Microwire-compatible 3-wire serial I/O. It features a dedicated 1024 x 16-bit memory organization and operates within a supply voltage range of 1.8V to 5.5V. The device supports clock frequencies up to 3 MHz at higher voltages, with data retention exceeding 200 years and endurance rated for 1,000,000 erase/write cycles. It is housed in an 8-lead SOIC package and functions reliably across an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Low-power CMOS technology designed for nonvolatile memory applications
• Self-timed erase and write cycles with automatic erase before write all operations
• Power-on/off data protection circuitry prevents data disturbance during power transitions
• Ready/Busy status signal available on the Data Out pin during programming operations

Memory IC Applications

• Industrial control systems requiring persistent configuration storage
• Embedded devices needing low-voltage nonvolatile parameter retention
• Automotive electronics operating within specified temperature ranges
• Consumer appliances storing calibration data or user settings

Memory IC Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C) and 'SN' denotes the 8-lead SOIC package. Confirm that the 'B' variant strictly provides 16-bit word organization without an ORG pin. Ensure compatibility with the host controller's Microwire interface timing requirements before finalizing procurement.

Memory IC Selection Notes

Select this component when a fixed 16-bit word size is required without external configuration pins. Compare against the 'A' version if 8-bit organization is preferred, or the 'C' version if software-selectable word sizes are needed. Ensure the system voltage remains within the 1.8V to 5.5V operational range to maintain data integrity and access speeds.

Memory IC Part Context

This part belongs to the 93XX86 series of 16K Microwire compatible serial EEPROMs from Microchip Technology. The series includes variants with different voltage ranges (AA, LC, C), word sizes (A, B), and configurable options (C). The 93AA86BT-I/SN specifically targets low-voltage industrial environments with its dedicated 16-bit architecture and robust packaging.

Memory IC Replacement Considerations

Direct substitutes within the same family include other 93AA86B variants with different packages such as TSSOP or MSOP. Cross-family replacements like the 93LC86B require verification of the lower minimum voltage threshold (2.5V) and potential interface timing differences.