24LC1025-E/SM

Memory IC Overview

The Microchip Technology 24LC1025-E/SM is a 128K x 8 (1024K bit) Serial Electrically Erasable PROM. It operates within a voltage range of 2.5V to 5.5V and supports I2C™ compatible 2-wire serial interfaces with clock frequencies up to 400 kHz at specified voltages. The device features a 128-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead SOIJ package and rated for industrial temperature ranges from -40°C to +125°C.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial data transmission protocol compatible with I2C™ standards
• Features hardware write protection controlled by the WP pin to inhibit array writes
• Includes a 128-byte page write buffer for efficient sequential data storage operations
• Utilizes Schmitt trigger inputs on SDA and SCL pins to suppress noise spikes

Memory IC Applications

• Personal communications devices requiring low-power non-volatile memory
• Data acquisition systems needing reliable storage for sensor readings
• Embedded systems utilizing I2C bus architecture for configuration storage
• Industrial control applications operating across extended temperature ranges

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Automotive temperature grade (-40°C to +125°C) and 'SM' indicates the 8-lead SOIJ package. Confirm the voltage supply requirements align with the 2.5V to 5.5V operational range specified for this variant. Ensure compatibility with the I2C bus speed limitations at lower supply voltages before finalizing procurement specifications.

Memory IC Selection Notes

Select this component when an I2C interface is required for 1Mbit capacity with automotive-grade temperature resilience. Compare against the 24AA1025 if lower voltage operation down to 1.7V is necessary, or the 24FC1025 if higher clock speeds are needed. Ensure the application can accommodate the specific voltage-dependent clock frequency limits defined in the datasheet electrical characteristics.

Memory IC Part Context

This part belongs to the 24XX1025 family of Serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24AA1025 and 24FC1025 but differs in voltage ranges and maximum clock frequencies. The family utilizes a common 8-pin package format and I2C communication protocol, allowing for flexible system design based on power and speed requirements.

Memory IC Replacement Considerations

The 24LC1025-I/SM serves as the Industrial temperature grade equivalent. For lower voltage applications, consider the 24AA1025 series. Higher speed requirements may necessitate the 24FC1025 series. Verify package compatibility and voltage thresholds when substituting.