24FC1025T-I/SN

Memory IC Overview

The Microchip Technology 24FC1025T-I/SN is a 1-Mbit (128K x 8) serial EEPROM utilizing I²C-compatible interfaces. It operates within a voltage range of 1.7V to 5.5V and supports clock frequencies up to 1 MHz at VCC ≥ 2.5V, with reduced speeds at lower voltages. The device features a 128-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead SOIC package and rated for industrial temperatures from -40°C to +85°C.

Memory IC Feature Summary

• Supports high-speed 1 MHz I²C communication for efficient data transfer
• Includes a 128-byte page write buffer to optimize write operations
• Features hardware write protection to secure memory contents
• Provides robust noise immunity through Schmitt trigger inputs

Memory IC Applications

• Personal communications devices requiring non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Embedded controllers managing configuration settings

Memory IC Procurement Notes

Verify that the A2 pin is hard-wired to VCC during installation, as floating or grounded states cause undefined operation. Confirm the specific suffix 'I/SN' matches the required industrial temperature grade and SOIC package dimensions. Ensure the design accounts for the 1 MHz clock limit at supply voltages above 2.5V.

Memory IC Selection Notes

Select this component when high-speed I²C access is required compared to standard 400 kHz variants. It is suitable for applications demanding low standby current and broad voltage compatibility. Consider the 128-byte page buffer size for write efficiency. Verify that the system can handle the specific address boundary limitations inherent to the 1 Mbit architecture.

Memory IC Part Context

This part belongs to the 24XX1025 family, which includes 24AA1025 and 24LC1025 variants. The 'FC' designation specifically indicates support for 1 MHz clock speeds, distinguishing it from the 400 kHz limited AA and LC versions. All family members share identical pinouts and functional protocols.

Memory IC Replacement Considerations

Direct substitutes include 24AA1025T-I/SN and 24LC1025T-I/SN. Note that these alternatives are limited to 400 kHz operation at higher voltages. Ensure the application timing requirements accommodate the slower clock speed if substituting.