24LC64-E/ST16KVAO

Memory IC Overview

The Microchip Technology 24LC64-E/ST16KVAO is a 64-Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It operates on a single supply voltage ranging from 2.5V to 5.5V and features a two-wire I2C compatible serial interface with a maximum clock frequency of 400 kHz. The device supports page write operations with a 32-byte buffer and includes hardware write protection via the WP pin. It is housed in an 8-lead TSSOP package and is qualified for extended industrial temperature ranges from -40°C to +125°C.

Memory IC Feature Summary

• Supports bidirectional, two-wire serial data transmission protocol compatible with standard I2C bus requirements.
• Includes Schmitt trigger inputs on SDA and SCL pins to provide improved noise spike suppression.
• Features output slope control designed to eliminate ground bounce during switching operations.
• Provides hardware write protection capability through the dedicated WP pin to secure array data.

Memory IC Applications

• Data logging systems requiring non-volatile storage for sensor readings or event timestamps
• Configuration storage for microcontroller-based embedded devices
• Parameter retention in industrial instrumentation and control equipment

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package variant. Confirm RoHS compliance status and automotive qualification if applicable to your design. Ensure the selected part number aligns with the intended manufacturing process and environmental specifications before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 64-Kbit EEPROM with I2C interface is required for applications operating between 2.5V and 5.5V. Choose the Extended temperature grade (-40°C to +125°C) for environments exceeding standard industrial limits. Consider the TSSOP package for surface mount assembly constraints and verify bus capacitance limits for multi-device configurations.

Memory IC Part Context

This device belongs to the 24LC64 series within Microchip's broader 24XX64 family of serial EEPROMs. It shares architectural similarities with the 24AA64 and 24FC64 variants but differs in minimum operating voltage and maximum clock speed specifications. The series utilizes a common pinout and command set across multiple package options including SOIC, MSOP, and DFN.

Memory IC Replacement Considerations

Direct functional substitutes include the 24LC64-I/ST for industrial temperature range applications and the 24LC64T-E/ST for tape and reel packaging variations. Cross-reference with 24AA64 or 24FC64 models only if voltage levels and clock frequency requirements are adjusted accordingly.