24LC32AF-I/ST

Memory IC Overview

The Microchip Technology 24LC32AF-I/ST is a 32 Kbit Electrically Erasable PROM organized as 4K x 8-bit memory. It features a 2-wire serial I2C interface with a maximum clock frequency of 400 kHz for VCC between 2.5V and 5.5V. The device operates within a supply voltage range of 2.5V to 5.5V and supports an industrial temperature range of -40°C to +85°C. Key electrical characteristics include a maximum read current of 400 μA, standby current of 1 μA, and access time of 900 ns at 5.5V.

Memory IC Feature Summary

• Hardware write-protect capability for the upper quarter of the memory array via the WP pin
• Supports up to eight devices on the same bus using functional address pins A0, A1, and A2
• Includes Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce

Memory IC Applications

• Personal communications systems requiring low-power non-volatile storage
• Data acquisition applications needing reliable parameter retention
• Embedded controllers utilizing I2C bus architecture for configuration data

Memory IC Procurement Notes

Verify that the ordering suffix matches the required package type and temperature grade. Confirm the specific revision level against the manufacturer's latest documentation to ensure compatibility with design specifications. Check for any recent product change notices regarding assembly sites or material composition updates before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 32 Kbit EEPROM with I2C interface is required for industrial environments. Ensure the system voltage remains above 2.5V to support the specified 400 kHz clock speed. Consider the 8-lead TSSOP package dimensions for PCB layout constraints and verify that the hardware write-protect feature aligns with the application's security requirements.

Memory IC Part Context

This part belongs to the 24LC32AF family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with the 24AA32AF but differs in minimum operating voltage requirements. The device is designed for low-power applications and offers high endurance with over one million erase/write cycles and data retention exceeding 200 years.

Memory IC Replacement Considerations

The 24LC32AF-E/ST serves as an automotive-grade alternative offering an extended temperature range up to +125°C. Verify voltage tolerance and package compatibility when substituting with other 32 Kbit I2C EEPROMs from different manufacturers.