24AA256-I/MF

Memory IC Overview

The Microchip Technology 24AA256-I/MF is a 256 Kbit (32K x 8) Serial Electrically Erasable PROM (EEPROM). It operates with a supply voltage range of 1.7V to 5.5V and supports a maximum clock frequency of 400 kHz. The device utilizes a two-wire I2C compatible serial interface and features a 64-byte page write buffer. It is housed in an 8-lead DFN package and is rated for industrial temperature operation from -40°C to +85°C.

Memory IC Feature Summary

• Supports bidirectional two-wire serial data transmission via I2C compatible interface
• Includes hardware write protection controlled by the WP pin
• Features Schmitt trigger inputs for noise suppression
• Provides output slope control to eliminate ground bounce

Memory IC Applications

• Personal communications devices
• Data acquisition systems
• Low-power embedded memory storage

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the base part number covers multiple form factors. Confirm the temperature grade suffix corresponds to the intended operating environment. Ensure the voltage range requirements align with the 1.7V minimum specification for this specific variant. Cross-reference the datasheet revision to confirm compatibility with existing design parameters.

Memory IC Selection Notes

Select this component when a low-voltage EEPROM with I2C connectivity is required for industrial applications. The 24AA256-I/MF offers a compact DFN footprint suitable for space-constrained designs. Consider the 400 kHz speed limit if higher bus frequencies are needed, as other variants support faster rates. Evaluate the page write capability against system throughput requirements.

Memory IC Part Context

This device belongs to the 24XX256 family of 256-Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24LC256 and 24FC256, which differ primarily in minimum operating voltage and maximum clock frequency specifications. The 'I' designation indicates the Industrial temperature range qualification.

Memory IC Replacement Considerations

Direct substitutes within the same family include the 24AA256-E/MF for extended temperature ranges or the 24LC256-I/MF if the application requires a 2.5V minimum supply voltage. Verify pinout compatibility and electrical characteristics before substitution.