24LC32AFT-I/ST

Memory IC Overview

The Microchip Technology 24LC32AFT-I/ST is a 32 Kbit Electrically Erasable PROM organized as a single block of 4K x 8-bit memory. It features a 2-wire serial interface compatible with I2C™, supporting clock frequencies up to 400 kHz. The device operates on a single supply voltage ranging from 2.5V to 5.5V and includes hardware write-protect capabilities for one-quarter of the array. Designed for low-power applications, it offers high endurance and long data retention.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial communication via SDA and SCL pins
• Includes hardware write-protect functionality for the upper quarter of the memory array
• Features Schmitt trigger inputs to suppress noise spikes on data lines
• Provides output slope control to minimize ground bounce during operation

Memory IC Applications

• Personal communications devices requiring non-volatile storage
• Data acquisition systems needing reliable parameter retention
• Industrial control units utilizing I2C bus architectures

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package type. Confirm the voltage range aligns with system requirements, as this variant supports 2.5V to 5.5V. Ensure compatibility with existing I2C bus protocols before integration into production designs.

Memory IC Selection Notes

Select this component when a 32 Kbit capacity is sufficient for application needs. Consider the 8-pin TSSOP package for surface mount constraints. Evaluate power consumption against active and standby current specifications to ensure compliance with energy efficiency targets in portable or battery-operated equipment.

Memory IC Part Context

This part belongs to the 24AA32AF/24LC32AF family of serial EEPROMs manufactured by Microchip Technology. The 'LC' designation indicates a minimum operating voltage of 2.5V, distinguishing it from the 'AA' series which supports lower voltages down to 1.7V. Both share identical pinouts and functional characteristics within their respective voltage ranges.

Memory IC Replacement Considerations

Direct substitutes include other 24LC32A variants with different packaging options such as MSOP or SOIC. Cross-reference with 24AA32A models if lower voltage operation below 2.5V is required, noting the difference in minimum supply voltage specifications.