24AA014T-I/SN

Memory IC Overview

The Microchip Technology 24AA014T-I/SN is a 1 Kbit (128 x 8) serial electrically erasable programmable read-only memory (EEPROM). It operates on a single supply voltage ranging from 1.7V to 5.5V and features a 2-wire I²C compatible interface with maximum clock frequencies of 100 kHz at voltages below 2.5V, and 400 kHz at voltages of 1.8V or higher. The device supports page write buffers for up to 16 bytes, hardware write protection via the WP pin, and self-timed write cycles with a maximum duration of 5 ms. It is housed in an 8-lead SOIC package and rated for industrial temperatures between -40°C and +85°C.

Memory IC Feature Summary

• Supports bidirectional 2-wire serial communication using I²C protocol
• Includes hardware write protection circuitry controlled by the WP pin
• Features a 16-byte page write buffer to optimize data transfer efficiency
• Provides high endurance with one million erase/write cycles

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Calibration data retention for sensor modules
• Device identification and security code storage

Memory IC Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SN' indicates the 8-lead SOIC package. Confirm the presence of the 'T' suffix denotes tape and reel packaging rather than tube. Ensure the specific revision matches the DS21809G datasheet requirements for voltage and timing specifications.

Memory IC Selection Notes

Select this component when low power consumption is critical, given its typical standby current of 1 µA. Choose the 24AA014T-I/SN over the 24LC014 variant if operation down to 1.7V is required, as the LC series typically starts at 2.5V. Consider the SOIC package dimensions for PCB layout constraints and verify that the bus capacitance limits allow for the desired number of devices on the I²C line.

Memory IC Part Context

This part belongs to the 24AA014/24LC014 family of 1 Kbit serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with other members like the 24AA01HT and 24FC01 but differs in speed and voltage ranges. The 'AA' prefix typically denotes lower voltage operation compared to the 'LC' series, while the 'FC' series offers higher clock speeds.

Memory IC Replacement Considerations

The 24LC014T-I/SN is a direct functional substitute with identical pinout and memory organization, though it requires a minimum supply voltage of 2.5V instead of 1.7V.