24AA16-E/ST

Memory IC Overview

The Microchip Technology 24AA16-E/ST is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It operates on a single supply voltage ranging from 1.7V to 5.5V and supports a maximum clock frequency of 400 kHz at voltages above 2.5V, or 100 kHz below 2.5V. The device features low-power CMOS technology with a maximum read current of 1 mA and standby current of 3 μA in the extended temperature range. It includes a 16-byte page write buffer, hardware write-protect capability via the WP pin, and Schmitt trigger inputs for noise suppression. The component is rated for an industrial temperature range of -40°C to +125°C.

Memory IC Feature Summary

• Supports bidirectional two-wire serial interface compatible with I2C protocols
• Includes hardware write-protect functionality controlled by the WP pin
• Features Schmitt trigger inputs and output slope control for enhanced noise immunity
• Provides self-timed erase/write cycles with automatic acknowledgment polling

Memory IC Applications

• Data storage for system configuration parameters
• Calibration data retention in measurement instruments
• Storage of unique identification codes in embedded systems
• Non-volatile memory for user settings in consumer electronics

Memory IC Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Extended temperature grade (-40°C to +125°C) and 'ST' indicates the TSSOP-8 package. Confirm the specific revision level of the datasheet DS20001703M matches the production batch requirements. Ensure compatibility with the target system's I2C bus voltage levels and pull-up resistor configurations before finalizing procurement.

Memory IC Selection Notes

Select this component when operation down to 1.7V is required, distinguishing it from the 2.5V minimum 24LC16B variant. The Extended temperature grade is suitable for harsh environments where standard Industrial grades are insufficient. Consider the 16-byte page write buffer for applications requiring efficient bulk data updates. Verify that the 400 kHz speed meets the system timing constraints at the lowest operating voltage.

Memory IC Part Context

This part belongs to the 24XX16 family of 16-Kbit serial EEPROMs, which also includes the 24LC16B and 24FC16 devices. While sharing the same memory architecture and interface, the 24AA16 is distinguished by its lower 1.7V operating limit compared to the 24LC16B. The 'E' suffix denotes the Extended temperature range, offering higher thermal tolerance than the Industrial 'I' grade variants within the same package type.

Memory IC Replacement Considerations

Direct substitutes include other 24AA16 variants with different packages such as 24AA16-I/MC or 24AA16-E/P, provided the temperature grade and interface remain compatible.