24LC1025T-I/SM

Memory IC Overview

The Microchip Technology 24LC1025T-I/SM is a 128K x 8 (1024K bit) Serial Electrically Erasable PROM. It operates with a supply voltage range of 2.5V to 5.5V and supports I2C™ compatible 2-wire serial interface communication 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 is housed in an 8-lead SOIJ package and is rated for industrial temperature operation from -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to four devices on the same data bus using configurable chip select pins A0 and A1.
• Includes a 128-byte page write buffer to facilitate efficient sequential data writing operations.
• Features hardware write protection controlled by the WP pin to inhibit array writes when tied high.

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the specific ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SM' indicates the 8-lead SOIJ package. Confirm the minimum operating voltage requirement of 2.5V aligns with your system's power supply specifications before finalizing procurement.

Memory IC Selection Notes

Select this component if your design requires a 1Mbit EEPROM with I2C compatibility and a 128-byte page write buffer. Ensure the application environment stays within the specified -40°C to +85°C temperature range and that the system voltage remains between 2.5V and 5.5V to guarantee proper functionality.

Memory IC Part Context

This part belongs to the 24XX1025 family, which includes variants like the 24AA1025 and 24FC1025. While sharing similar architecture, the 24LC1025 specifically targets the 2.5V to 5.5V voltage range, distinguishing it from lower-voltage or higher-speed counterparts within the same product line.

Memory IC Replacement Considerations

Direct replacements include other 24LC1025 variants such as 24LC1025-E/SM for extended temperature ranges or 24LC1025T-I/SN for different packaging options. Verify voltage and speed compatibility when substituting with 24AA1025 or 24FC1025 models.

Memory IC FAQ

How does the A2 pin affect device operation?

The A2 pin is a non-configurable Chip Select input that must be hard-wired to VCC. If left floating or tied to VSS, the device operation will be undefined.

What happens during a page write across a boundary?

If a Page Write command attempts to cross a physical page boundary, the data wraps around to the beginning of the current page instead of writing to the next page.