24FC1026-I/ST

Memory IC Overview

The Microchip Technology 24FC1026-I/ST is a 1 Mbit (128K x 8) serial electrically erasable programmable read-only memory. It operates on a 2-wire I2C compatible interface with a maximum clock frequency of 1 MHz at VCC levels between 2.5V and 5.5V, and 400 kHz for voltages from 1.8V to 2.5V. The device supports a supply voltage range of 1.8V to 5.5V and functions within an industrial temperature range of -40°C to +85°C. It features a 128-byte page write buffer, hardware write protection via the WP pin, and data retention exceeding 200 years.

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 operations and reduce bus overhead
• Provides hardware-based write protection through the dedicated WP pin to prevent accidental data modification

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific voltage operating range requirements align with the FC series specifications. Ensure compatibility with the host system's I2C pull-up resistor values for the target clock speed. Check for any specific factory programming requirements if custom data initialization is needed before deployment.

Memory IC Selection Notes

Select this component when high-speed 1 MHz I2C performance is required alongside low-power operation. It is suitable for applications needing extensive non-volatile storage capacity within a compact 8-lead SOIJ package. Consider this part for designs operating across a wide voltage range starting from 1.8V. Ensure the application can accommodate the specific block addressing limitations inherent to the 1 Mbit architecture.

Memory IC Part Context

This device belongs to the 24XX1026 family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24AA1026 and 24LC1026 but offers enhanced clock speeds. The 'I' designation indicates industrial temperature rating, while the '/ST' suffix specifies the 8-lead Small Outline Integrated Circuit (SOIJ) package format.

Memory IC Replacement Considerations

Direct replacements include the 24AA1026 and 24LC1026, though these operate at lower maximum clock frequencies. Verify that the substitute part meets the specific voltage and timing requirements of the original design.