24AA32AFT-I/MNY

Memory IC Overview

The Microchip Technology 24AA32AFT-I/MNY is a 32 Kbit Electrically Erasable PROM organized as 4K x 8-bit memory. It features a 2-wire I2C compatible serial interface with a maximum clock frequency of 400 kHz for VCC ≥ 2.5V and 100 kHz for 1.7V ≤ VCC < 2.5V. Operating voltage ranges from 1.7V to 5.5V, with typical standby current of 1 μA and read current of 400 μA. The device supports page writes up to 32 bytes, has a write cycle time of 5 ms max, and operates within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Hardware write-protect capability for the upper quarter of the array via the WP pin
• Supports cascading 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 systems utilizing I2C bus architecture for configuration data

Memory IC Procurement Notes

Verify that the ordering suffix correctly identifies the TDFN-8 package and Industrial temperature grade. Confirm the specific voltage range requirements align with the 1.7V minimum specification for the 24AA series. Ensure compatibility with the 400 kHz I2C clock speed if operating above 2.5V supply voltage.

Memory IC Selection Notes

Select this component when a 32 Kbit EEPROM with hardware write protection for a portion of the memory array is required. It is suitable for designs needing multiple devices on a single I2C bus due to the inclusion of three chip select address pins. Consider the TDFN-8 package dimensions for space-constrained surface mount layouts.

Memory IC Part Context

This part belongs to the 24AA32AF family of serial EEPROMs manufactured by Microchip Technology. It shares core electrical characteristics with other variants in the 24XX32A series but is distinguished by its specific package type and temperature rating. The AF designation indicates the inclusion of hardware write-protect functionality not present in all standard EEPROM models.

Memory IC Replacement Considerations

24AA32AT-I/MNY