24AA32AF-I/MS

Memory IC Overview

The Microchip Technology 24AA32AF-I/MS is a 32 Kbit Electrically Erasable PROM organized as a single block of 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 VCC < 2.5V. The device operates on a single supply voltage ranging from 1.7V to 5.5V. It includes hardware write-protect functionality for the upper quarter of the array (addresses C00h-FFFh) via the WP pin. The component supports page writes of up to 32 bytes and offers data retention exceeding 200 years with over one million erase/write cycles endurance.

Memory IC Feature Summary

• Hardware write-protect capability for the upper quarter of the memory array
• Low-power CMOS technology with standby current of 1 μA maximum
• Schmitt trigger inputs for noise suppression on SDA and SCL pins
• Supports cascading up to eight devices on the same bus

Memory IC Applications

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

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required temperature grade and package type. Confirm the voltage range requirements align with the 1.7V to 5.5V specification for the Industrial grade device. Ensure the design accommodates the 8-lead MSOP package dimensions and pinout configuration as defined in the datasheet.

Memory IC Selection Notes

Select this component for applications requiring low-voltage operation down to 1.7V and high endurance. The Industrial temperature range covers -40°C to +85°C. Consider the 32-byte page write buffer for efficient data writing. Verify that the system bus speed does not exceed 400 kHz at the operating voltage.

Memory IC Part Context

This part belongs to the 24AA32AF/24LC32AF family of 32 Kbit Serial EEPROMs. The 'I' suffix indicates an Industrial temperature rating (-40°C to +85°C), while 'MS' denotes the 8-lead Mini Small Outline Package. It shares functional similarities with the 24LC32AF but differs in minimum operating voltage specifications.

Memory IC Replacement Considerations

Public confirmed substitute part numbers include 24AA32AT-I/MS and 24AA32AXT-I/ST.