24FC1026T-I/SM

Memory IC Overview

The Microchip Technology 24FC1026T-I/SM is a 128K x 8 (1024 Kbit) serial EEPROM utilizing low-power CMOS technology. It features an I²C compatible interface with a maximum clock frequency of 1 MHz at VCC ≥ 2.5V, and supports 100 kHz operation at lower voltages. The device operates across a supply voltage range of 1.8V to 5.5V and includes a 128-byte page write buffer. It offers hardware write protection via the WP pin, Schmitt trigger inputs for noise suppression, and output slope control to eliminate ground bounce.

Memory IC Feature Summary

• Supports high-speed 1 MHz I²C communication for efficient data transfer in low-voltage environments.
• Includes a 128-byte page write buffer to optimize write throughput and reduce bus overhead.
• Features hardware write protection that inhibits array modifications when the WP pin is tied to VCC.
• Incorporates Schmitt trigger inputs and output slope control to ensure signal integrity and suppress noise.

Memory IC Applications

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

Memory IC Procurement Notes

Verify the specific suffix 'I/SM' corresponds to the Industrial temperature range (-40°C to +85°C) and SOIJ package. Confirm the 'T' indicates tape and reel packaging if required for automated assembly. Ensure the design accounts for the 1.8V minimum operating voltage specific to the FC variant.

Memory IC Selection Notes

Select this component for applications requiring 1 MHz I²C speeds and 1.8V operation. Compare against 24LC1026 for 2.5V minimum requirements or 24AA1026 for 1.7V support. Consider the SOIJ package dimensions for PCB layout constraints and verify page write boundary handling in software.

Memory IC Part Context

This part belongs to the 24XX1026 family, which shares identical memory architecture and pinouts. The 'FC' designation specifically denotes the 1.8V-5.5V voltage range and 1 MHz clock capability, distinguishing it from the LC and AA variants which have different voltage and speed specifications.

Memory IC Replacement Considerations

Direct functional substitutes within the same package include 24LC1026T-I/SM and 24AA1026T-I/SM, provided voltage and speed requirements are met. Verify compatibility regarding the minimum operating voltage and maximum clock frequency before substitution.

Memory IC FAQ

How does the block select bit B0 affect addressing?

The B0 bit acts as address bit A16, allowing access to either of the two 512K-bit segments within the 1Mbit array. Sequential reads are limited to these 512K boundaries.

What happens if a page write crosses a physical page boundary?

If a page write attempts to cross a boundary, the data wraps around to the beginning of the current page, overwriting existing data instead of proceeding to the next page.