24AA64-I/P

Memory IC Overview

The Microchip Technology 24AA64-I/P 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. The device operates on a single supply voltage ranging from 1.7V to 5.5V, supporting maximum clock frequencies of 100 kHz below 2.5V and 400 kHz at or above 2.5V. It utilizes low-power CMOS technology with a maximum active current of 3 mA and standby current of 1 µA. The component supports page write operations with a 32-byte buffer and includes hardware write protection via the WP pin.

Memory IC Feature Summary

• Supports bidirectional data transmission over a two-wire serial bus using standard I2C protocol
• Includes Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce
• Features a 32-byte page write buffer allowing efficient sequential data storage
• Provides hardware write protection through the dedicated WP pin to secure array data

Memory IC Applications

• Industrial systems requiring non-volatile data retention
• Power management circuits needing configuration storage
• Communication and network equipment utilizing serial interfaces
• Automotive applications qualified under AEC-Q100 standards

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type, temperature grade, and RoHS compliance status. Confirm the voltage range requirements align with the 1.7V to 5.5V specification for the AA series. Ensure the design accounts for the necessary pull-up resistors on the SDA and SCL lines for proper I2C operation.

Memory IC Selection Notes

Select this component when a 64-Kbit capacity is required with a wide operating voltage range starting at 1.7V. Choose the PDIP-8 package for through-hole mounting applications. Consider the industrial temperature range (-40°C to +85°C) for general purpose use. Verify if automotive qualification is needed, in which case the E-temp variant should be selected instead.

Memory IC Part Context

This part belongs to the 24XX64 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24FC64 and 24LC64, which share similar architectural features but differ in maximum clock frequency and minimum operating voltage specifications. The 24AA64 specifically targets applications requiring operation down to 1.7V.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 24AA64T-I/ST, 24AA64FT-I/ST, and 24AA64F-I/P.