24LC32AT-E/MS

Memory IC Overview

The Microchip Technology 24LC32AT-E/MS is a 32-Kbit Electrically Erasable PROM organized as a single block of 4K x 8-bit memory. It operates on a single supply voltage ranging from 2.5V to 5.5V and supports I2C compatible two-wire serial interfaces with maximum clock frequencies of 100 kHz below 2.5V and 400 kHz at or above 2.5V. The device features a 32-byte page write buffer, self-timed erase/write cycles with a maximum duration of 5 ms, and an access time of 900 ns. It is housed in an 8-lead MSOP package and is rated for extended industrial temperature ranges from -40°C to +125°C.

Memory IC Feature Summary

• Hardware write protection via the WP pin inhibits write operations when tied to VCC while allowing read access.
• Schmitt trigger inputs on SDA and SCL pins provide noise suppression for stable data transmission.
• Supports up to eight devices on the same bus through functional address lines A0, A1, and A2.
• Includes output slope control to eliminate ground bounce during switching.

Memory IC Applications

• Data acquisition systems requiring non-volatile storage
• Personal communications devices
• Industrial control applications

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the MSOP package type and Extended temperature range (E). Confirm RoHS compliance status and ensure the voltage operating range matches the system requirements, as this variant requires a minimum of 2.5V unlike the 1.7V capable 24AA32A series.

Memory IC Selection Notes

Select this component when a 32-Kbit EEPROM with I2C interface is required for extended temperature environments. Ensure the design accommodates the 2.5V minimum supply voltage constraint. Consider the 32-byte page write buffer size for efficient data handling and verify that the 8-lead MSOP footprint fits the PCB layout constraints.

Memory IC Part Context

This part belongs to the 24XX32A family of serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24AA32A which supports lower voltages down to 1.7V. The 24LC32A specifically targets applications requiring operation between 2.5V and 5.5V, offering compatibility with standard logic levels while maintaining low power consumption characteristics typical of CMOS technology.

Memory IC Replacement Considerations

The 24AA32AT-E/MS serves as a direct substitute if the application can support the lower 1.7V minimum voltage requirement. Other packages within the 24LC32A family, such as SOIC or PDIP, may be used if form factor changes are acceptable.