24AA04HT-I/MNY

Memory IC Overview

The Microchip Technology 24AA04HT-I/MNY is a 4-Kbit (512 x 8) Electrically Erasable PROM (EEPROM) featuring a two-wire I2C 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 VCC ≥ 2.5V, and 100 kHz when VCC is between 1.7V and 2.5V. The device includes hardware write-protect functionality for the upper half of the memory array (addresses 100h-1FFh). It utilizes low-power CMOS technology, offering a maximum active read current of 1 mA and standby current of 1 µA. The component supports page writes up to 16 bytes and provides data retention exceeding 200 years.

Memory IC Feature Summary

• Hardware write-protect capability for the upper half of the memory array via the WP pin
• Low-power operation with active read current of 1 mA and standby current of 1 µA
• I2C compatible two-wire serial interface with Schmitt trigger inputs for noise suppression
• Self-timed erase/write cycles with a 16-byte page write buffer

Memory IC Applications

• Data logging in industrial environments
• Configuration storage for embedded systems
• Parameter storage in consumer electronics
• Smart card applications requiring secure data retention

Memory IC Procurement Notes

Verify the specific ordering suffix 'MNY' corresponds to the 8-lead TDFN package type as documented in the manufacturer's datasheet. Confirm that the 'I' temperature grade meets the required operational range of -40°C to +85°C for your application environment. Ensure compatibility with the 1.7V to 5.5V supply voltage specifications before integration into the circuit design.

Memory IC Selection Notes

Select this component when a 4-Kbit non-volatile memory solution with hardware write protection is required. It is suitable for designs operating at voltages down to 1.7V, distinguishing it from devices requiring higher minimum voltages. Consider the 8-lead TDFN package constraints regarding thermal dissipation and PCB space. Verify that the 400 kHz I2C speed is sufficient for the system bus requirements.

Memory IC Part Context

This part belongs to the 24XX04H family of 4-Kbit I2C Serial EEPROMs manufactured by Microchip Technology. The family includes variants such as the 24LC04BH and 24FC04H, which differ primarily in minimum operating voltage and maximum clock frequency capabilities. The 24AA04H variant specifically supports operation down to 1.7V, making it appropriate for low-voltage portable applications.

Memory IC Replacement Considerations

Publicly confirmed substitute part numbers include 24AA04T-I/MNY.