24LC1025-I/P

Memory IC Overview

The Microchip Technology 24LC1025-I/P 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 at clock frequencies up to 400 kHz. 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 provides over 1 million erase/write cycles and data retention exceeding 200 years. The component is housed in an 8-lead PDIP package and functions across an industrial temperature range from -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to four devices on the same bus using configurable chip select inputs A0 and A1.

Memory IC Applications

• Personal communications systems
• Data acquisition applications

Memory IC Procurement Notes

Verify that the ordering suffix matches the required specifications: 'I' indicates the industrial temperature range (-40°C to +85°C), and '/P' denotes the 8-lead PDIP package. Confirm the specific voltage requirements align with the 2.5V to 5.5V operating range defined for the LC series before procurement.

Memory IC Selection Notes

Select this component when a 1 Mbit EEPROM with I2C interface is required. Ensure the application environment stays within the specified industrial temperature limits. Verify that the system voltage remains above 2.5V to maintain the maximum 400 kHz clock frequency; lower voltages may restrict operation to 100 kHz.

Memory IC Part Context

This part belongs to the 24XX1025 family, which includes variants like the 24AA1025 and 24FC1025. These devices share identical memory architecture and physical dimensions but differ in supply voltage ranges and maximum clock speeds. The 24LC1025 specifically targets standard voltage applications requiring robust noise immunity through Schmitt triggers.

Memory IC Replacement Considerations

Direct replacements include the 24AA1025-I/P and 24FC1025-I/P. Note that these alternatives have different minimum operating voltages and clock speed limitations compared to the 24LC1025-I/P.