24AA64-I/SM

Memory IC Overview

The Microchip Technology 24AA64-I/SM is a 64-Kbit Electrically Erasable PROM organized as an 8K x 8-bit memory block. It features a two-wire serial interface compatible with I2C protocols, supporting clock frequencies up to 400 kHz for VCC levels between 2.5V and 5.5V, and 100 kHz for voltages from 1.7V to 2.5V. The device operates within a supply voltage range of 1.7V to 5.5V and supports industrial temperature conditions from -40°C to +85°C. It utilizes an 8-lead Small Outline Junction (SOIJ) package.

Memory IC Feature Summary

• Supports bidirectional data transfer via a two-wire serial bus protocol
• Includes hardware write protection controlled by the WP pin
• Features Schmitt trigger inputs for improved noise suppression
• Provides output slope control to eliminate ground bounce

Memory IC Applications

• Data logging in low-power embedded systems
• Configuration storage for microcontroller-based devices
• Parameter retention in industrial instrumentation

Memory IC Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with system voltage requirements, noting that clock frequency limits vary based on the operating supply voltage. Confirm RoHS compliance status through current manufacturer declarations.

Memory IC Selection Notes

Select this component when a 64-Kbit non-volatile memory solution is required with I2C connectivity. The 24AA64 series is suitable for applications needing operation down to 1.7V. Consider the SOIJ package availability if space constraints require a compact footprint compared to standard SOIC or PDIP options.

Memory IC Part Context

This part belongs to the 24XX64 family of 64-Kbit serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC64 and 24FC64, which share similar interfaces but differ in voltage ranges and maximum clock speeds. The 'I' designation indicates industrial temperature rating, while 'SM' specifies the 8-lead SOIJ package.

Memory IC Replacement Considerations

Compatible substitutes include other 24AA64 variants with different packages such as 24AA64-I/SN or 24AA64-I/MS. Cross-family replacements like the 24LC64 are possible if the minimum operating voltage requirement is adjusted to 2.5V.