24AA16-I/STG

Memory IC Overview

The Microchip Technology 24AA16-I/STG is a 16-Kbit Electrically Erasable PROM organized as eight blocks of 256 x 8-bit memory. It operates with a single supply voltage ranging from 1.7V to 5.5V and features a two-wire serial interface compatible with I2C protocols. The device supports a maximum clock frequency of 400 kHz at voltages above 2.5V, reducing to 100 kHz below that threshold. It includes a 16-byte page write buffer, hardware write protection via the WP pin, and Schmitt trigger inputs for noise suppression. The Industrial temperature grade (I) ensures operation between -40°C and +85°C.

Memory IC Feature Summary

• Supports bidirectional data transmission over a two-wire serial bus using standard I2C-compatible protocols.
• Includes a hardware write-protect pin that inhibits all write operations when tied to VCC while allowing read access.
• Features internal address pointers enabling current address, random, and sequential read operations.

Memory IC Applications

• Data acquisition systems requiring non-volatile storage
• Personal communication devices needing low-power memory
• Industrial control applications with moderate data retention needs

Memory IC Procurement Notes

Verify the specific suffix 'STG' against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure the industrial temperature range (-40°C to +85°C) matches system requirements. Confirm RoHS compliance status for the specific manufacturing batch.

Memory IC Selection Notes

Select this component for designs requiring low standby current and operation down to 1.7V. The 16Kbit capacity suits applications needing small amounts of persistent configuration data. Consider the 400 kHz speed limit if higher bus throughput is required, or evaluate alternative packages if space constraints differ from the TSSOP form factor.

Memory IC Part Context

This part belongs to the 24XX16 family of serial EEPROMs, which also includes the 24LC16B and 24FC16 variants. While sharing similar memory organization and interface protocols, these variants differ in minimum operating voltage and maximum clock frequency specifications.

Memory IC Replacement Considerations

Direct substitutes within the same family include the 24AA16-I/ST and 24AA16T-E/ST. Verify that any replacement maintains the identical 1.7V-5.5V operating range and 400 kHz maximum clock frequency for compatibility.

Memory IC FAQ

How does the hardware write-protect feature function?

Connecting the WP pin to VCC inhibits all write operations to the entire memory array (addresses 000-7FF). Read operations remain unaffected regardless of the WP pin state.

What happens if a page write crosses a physical page boundary?

If a page write command attempts to cross a physical page boundary, the data wraps around to the beginning of the current page, overwriting previously stored data instead of proceeding to the next page.