24LC32AT-I/SN

Memory IC Overview

The Microchip Technology 24LC32AT-I/SN is a 32-Kbit (4K x 8-bit) serial EEPROM featuring an I2C-compatible two-wire interface. It operates on a single supply voltage ranging from 2.5V to 5.5V with a maximum clock frequency of 400 kHz. The device supports page writes of up to 32 bytes and includes hardware write protection via the WP pin. It functions within an industrial temperature range of -40°C to +85°C and is housed in an 8-lead SOIC package.

Memory IC Feature Summary

• Supports bidirectional data transfer using a standard two-wire serial bus protocol compatible with I2C standards.
• Includes a 32-byte page write buffer to enhance write throughput by allowing multiple byte transfers before internal programming cycles.
• Provides hardware-based write protection through the WP pin, which inhibits all write operations when tied to VCC while maintaining read access.

Memory IC Applications

• Data logging for sensor readings or system parameters
• Configuration storage for microcontroller systems
• Calibration data retention in embedded devices

Memory IC Procurement Notes

Verify that the specific suffix 'I' confirms the Industrial temperature range (-40°C to +85°C) and 'SN' denotes the 8-lead SOIC package. Confirm the 'T' suffix indicates tape and reel packaging if required for automated assembly. Ensure the voltage requirements align with the 2.5V minimum operating limit specified for the 24LC32A series.

Memory IC Selection Notes

Select this component when a non-volatile memory solution is needed for low-pin-count applications requiring I2C connectivity. It is suitable for designs where power consumption must be minimized during standby modes. Consider the 32-byte page size limitation when designing software to prevent data corruption across page boundaries.

Memory IC Part Context

This part belongs to the 24XX32A family of 32-Kbit serial EEPROMs manufactured by Microchip Technology. The family shares identical functional architectures but differs in supply voltage ranges and temperature grades. The 24LC32A variant specifically targets applications requiring operation down to 2.5V, distinguishing it from the 1.7V capable 24AA32A.

Memory IC Replacement Considerations

Direct substitutes include other 24LC32A variants with different package options such as MSOP or PDIP, provided the temperature grade matches the application requirements. Cross-brand replacements require verification of I2C timing compatibility and voltage level tolerances.