24LC1025-E/SN

Memory IC Overview

The Microchip Technology 24LC1025-E/SN 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 Interface with a maximum clock frequency of 400 kHz. The device features a 128-byte page write buffer, hardware write-protect capability, and Schmitt trigger inputs for noise suppression. It is housed in an 8-SOIC package and rated for industrial temperature ranges from -40°C to +125°C.

Memory IC Feature Summary

• Supports cascading up to four devices on the same data bus using configurable chip select bits.
• Includes hardware write-protect functionality via the WP pin to inhibit array writes.
• Features output slope control designed to eliminate ground bounce during operation.

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Advanced low-power electronic designs

Memory IC Procurement Notes

Verify that the ordering suffix matches the required specifications. Confirm the 'E' designation corresponds to the extended automotive temperature range of -40°C to +125°C. Ensure the 'SN' suffix indicates the 8-lead SOIC package type. Cross-reference the specific revision level against the manufacturer datasheet to ensure compatibility with current design requirements.

Memory IC Selection Notes

Select this component when a 1Mbit EEPROM with I2C interface is required for high-density storage. Choose the 'E' variant specifically for applications operating between -40°C and +125°C. Verify that the system voltage remains above 2.5V to meet the minimum operational threshold. Consider the 128-byte page write buffer size for optimizing write throughput in the target application.

Memory IC Part Context

This part belongs to the 24XX1025 family, which includes the 24AA1025 and 24FC1025 variants. These devices share identical memory architecture and pinouts but differ in supply voltage ranges and maximum clock frequencies. The 24LC1025 specifically targets the 2.5V to 5.5V range with 400 kHz support.

Memory IC Replacement Considerations

The 24LC1026T-E/SN serves as a functional substitute within the same family, offering identical 1Mbit capacity and 400 kHz I2C interface capabilities while maintaining the same 8-SOIC package and extended temperature rating.