24AA014HT-I/ST

Memory IC Overview

The Microchip Technology 24AA014HT-I/ST is a 1 Kbit (128 x 8) Serial Electrically Erasable PROM featuring a 2-Wire I²C compatible interface. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum active current of 400 μA and standby current of 1 μA. The device supports clock frequencies up to 400 kHz and includes hardware write protection for half the array via the WP pin. It offers 1 million erase/write cycles, data retention exceeding 200 years, and ESD protection greater than 4,000V in an 8-pin TSSOP package.

Memory IC Feature Summary

• Hardware write protection capability for half the memory array using the WP pin
• Low-power CMOS technology enabling minimal active and standby currents
• Schmitt trigger inputs and output slope control for noise suppression and ground bounce elimination
• Page write buffer supporting up to 16 bytes for efficient data transfer

Memory IC Applications

• Smart cards and security tokens requiring low-voltage operation
• Consumer electronics utilizing I²C bus communication
• Industrial control systems needing non-volatile data storage
• Automotive electronic modules operating within industrial temperature ranges

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'ST' indicates the 8-pin TSSOP package. Confirm the 'H' variant designation aligns with the specific electrical characteristics required for your voltage and speed constraints. Ensure compatibility with the 24LC014H series if system-level interchangeability is necessary.

Memory IC Selection Notes

Select this component when a 1 Kbit EEPROM with I²C interface is required for space-constrained designs. The 24AA014H variant supports operation down to 1.7V, making it suitable for battery-powered applications where the standard 2.5V minimum of the 24LC014H is insufficient. Consider the hardware write protection feature if partial array security is needed without software overhead.

Memory IC Part Context

This device belongs to the 24AA014H/24LC014H family of 1 Kbit Serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with other members of the 24-series but is distinguished by its specific voltage range and package configuration. The 'H' suffix denotes enhanced features such as lower power consumption and improved noise immunity compared to earlier generations.

Memory IC Replacement Considerations

The 24LC014H is a functional substitute with a higher minimum operating voltage of 2.5V. Other 1 Kbit I²C EEPROMs may require verification of voltage compatibility, interface timing, and package dimensions before substitution.