24FC1026T-I/ST

Memory IC Overview

The Microchip Technology 24FC1026T-I/ST is a 1024 Kbit (128K x 8) serial electrically erasable PROM featuring an I2C-compatible 2-wire interface. It operates within a supply voltage range of 1.8V to 5.5V and supports clock frequencies up to 1 MHz at VCC ≥ 2.5V, or 400 kHz at lower voltages. The device includes a 128-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. It offers over one million erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Supports high-speed 1 MHz clock operation for efficient data transfer in low-voltage environments
• Includes a 128-byte page write buffer to optimize sequential write operations
• Features hardware write protection to secure memory arrays against unauthorized modifications
• Provides cascading capability allowing up to four devices on a single bus

Memory IC Applications

• Personal communications systems requiring non-volatile storage
• Data acquisition applications needing reliable parameter logging
• Industrial control systems utilizing I2C communication protocols
• Embedded devices requiring compact serial EEPROM solutions

Memory IC Procurement Notes

Verify that the ordering suffix 'T' corresponds to tape-and-reel packaging rather than tube packaging when sourcing components. Confirm the temperature grade 'I' meets industrial operating requirements of -40°C to +85°C. Ensure the specific revision level matches design specifications as datasheet revisions may update electrical characteristics or package dimensions.

Memory IC Selection Notes

Select this component when high-speed 1 MHz I2C performance is required alongside low power consumption. It is suitable for designs operating between 1.8V and 5.5V where standard 400 kHz EEPROMs are insufficient. Consider the 128-byte page buffer for applications involving frequent small data updates to reduce write cycle overhead.

Memory IC Part Context

This part belongs to the 24XX1026 family, which includes variants with different voltage ranges and clock speeds. The 'FC' designation indicates support for 1 MHz clock rates and a minimum operating voltage of 1.8V. The 'I' suffix denotes the industrial temperature range, while 'ST' specifies the 8-lead SOIC surface-mount package type.

Memory IC Replacement Considerations

The 24LC1026 serves as a compatible alternative but is limited to 400 kHz clock speeds and requires a minimum voltage of 2.5V. The 24AA1026 also operates at 400 kHz with a 1.7V minimum voltage. Verify interface compatibility and voltage levels before substituting these parts.