24FC256T-I/MF

Memory IC Overview

The Microchip Technology 24FC256T-I/MF is a 32K x 8 (256 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates across a broad voltage range of 1.7V to 5.5V and supports a maximum clock frequency of 1 MHz at VCC ≥ 2.5V. The device utilizes a two-wire I2C compatible interface and features a 64-byte page write buffer with a maximum write cycle time of 5 ms. It is housed in an 8-lead TDFN package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports high-speed serial data transmission up to 1 MHz for efficient bus communication
• Includes a hardware write-protect pin to secure memory arrays against unauthorized modifications
• Features Schmitt trigger inputs on SDA and SCL lines to suppress noise spikes
• Provides output slope control to minimize ground bounce during signal transitions

Memory IC Applications

• Personal communications devices requiring low-power non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers utilizing I2C bus architecture

Memory IC Procurement Notes

Verify the specific suffix 'MF' corresponds to the 8-lead TDFN package configuration. Confirm the 'I' designation matches the required industrial temperature range of -40°C to +85°C. Ensure the ordering quantity aligns with tape and reel specifications for automated assembly processes.

Memory IC Selection Notes

Select this component when operation below 2.5V is required, as it supports voltages down to 1.7V unlike the 24LC256 variant. Choose this model over the 24AA256 if a maximum clock frequency of 1 MHz is necessary for system performance. Verify that the TDFN package dimensions fit the available PCB real estate constraints.

Memory IC Part Context

This part belongs to the 24XX256 family of 256-Kbit Serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA256 and 24LC256, which share similar functional architectures but differ in voltage ranges and clock speeds. The 24FC256 specifically bridges the gap between low-voltage operation and high-speed data transfer capabilities.

Memory IC Replacement Considerations

Direct substitutes include other 24FC256 variants with different packaging options such as SOIC or MSOP, provided the pinout remains compatible. Cross-referencing with 24AA256 or 24LC256 models requires verifying voltage compatibility and clock speed limitations.