24AA014T-I/ST

Memory IC Overview

The 24AA014T-I/ST is a 1 Kbit (128 x 8) Serial Electrically Erasable PROM manufactured by Microchip Technology. It operates on a single supply voltage ranging from 1.7V to 5.5V and utilizes a 2-Wire Serial Interface Bus compatible with I²C™ standards. The device supports clock frequencies of 100 kHz and 400 kHz, featuring a page write buffer for up to 16 bytes. It includes hardware write protection for the entire array and offers high endurance with 1,000,000 erase/write cycles and data retention exceeding 200 years.

Memory IC Feature Summary

• Supports low-power operation with typical standby current of 1 µA at 5.5V
• Features hardware write protection for the entire memory array via the WP pin
• Compatible with standard I²C bus protocols supporting 100 kHz and 400 kHz clock speeds
• Includes acknowledge polling capability to maximize bus throughput during write cycles

Memory IC Applications

• Low-power data acquisition systems requiring non-volatile storage
• Personal communication devices operating on limited power supplies
• Industrial control applications needing reliable parameter storage
• Embedded systems utilizing I²C bus architecture for configuration data

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 6-lead SOT-23 package. Confirm that the specific revision matches the DS21809G datasheet requirements. Ensure compatibility with the system's I²C voltage levels, as the device supports operation down to 1.7V. Check for RoHS compliance status if required by local regulations.

Memory IC Selection Notes

Select this component when a small form factor is required due to the available 6-lead SOT-23 package option. Choose this part for applications demanding operation at supply voltages below 2.5V, as the 24AA variant supports down to 1.7V unlike the 24LC series. Consider the hardware write protection feature if security against accidental writes is critical for the application design.

Memory IC Part Context

This device belongs to the 24AA014/24LC014 family of 1 Kbit Serial EEPROMs. It shares functional similarities with the 24LC014 but differs in supply voltage specifications, allowing the 24AA014 to operate at lower voltages. The family is designed for advanced, low-power applications and is available in multiple package types including PDIP, SOIC, TSSOP, DFN, TDFN, MSOP, and SOT-23.

Memory IC Replacement Considerations

The 24LC014 is a direct functional substitute within the same family, though it requires a minimum supply voltage of 2.5V compared to the 24AA014's 1.7V minimum. Other 1 Kbit I²C EEPROMs from different manufacturers may require verification of pinout compatibility and voltage level shifting.