24AA04-I/S16K

Memory IC Overview

The Microchip Technology 24AA04-I/S16K is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire I2C compatible serial interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz at voltages above 2.5V, and 100 kHz below 2.5V. The device supports page writes up to 16 bytes with a maximum cycle time of 5 ms. It includes hardware write protection via the WP pin and offers data retention exceeding 200 years with over one million erase/write cycles.

Memory IC Feature Summary

• Low-power CMOS technology enabling operation down to 1.7V with minimal standby current
• I2C compatible two-wire serial interface with Schmitt trigger inputs for noise suppression
• Hardware write-protect capability allowing entire array locking when WP pin is tied high
• High reliability with over one million erase/write cycles and extended data retention

Memory IC Applications

• Smartcard applications requiring low-voltage non-volatile storage
• Industrial systems needing robust data logging in noisy environments
• Automotive electronics utilizing AEC-Q100 qualified components
• Consumer devices requiring compact memory solutions with hardware write protection

Memory IC Procurement Notes

Verify the specific suffix 'S16K' against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure the industrial temperature grade (-40°C to +85°C) matches system requirements. Confirm RoHS compliance status through current datasheets or environmental files before procurement.

Memory IC Selection Notes

Select this component for designs requiring 4-Kbit EEPROM with I2C connectivity and low-voltage operation starting at 1.7V. Consider the 400 kHz clock speed limit at standard voltages versus 100 kHz at lower voltages. Evaluate the need for hardware write protection and page write buffering capabilities relative to application throughput requirements.

Memory IC Part Context

This part belongs to the 24XX04 family of 4-Kbit serial EEPROMs, which also includes the 24LC04B and 24FC04 variants. While sharing similar architecture, these variants differ in minimum operating voltage and maximum clock frequency. The 24AA04 specifically supports operation down to 1.7V and is available in multiple package types including SOIC and DFN.

Memory IC Replacement Considerations

Direct functional substitutes within the same family include the 24AA04T-I/SN for reel packaging or other 24AA04 variants with different package codes such as PDIP or MSOP. Cross-family replacements like 24LC04B require voltage level adjustments due to its 2.5V minimum requirement.