24AA512-I/SN

Memory IC Overview

The Microchip Technology 24AA512-I/SN is a 512 Kbit Electrically Erasable PROM organized as 64K x 8-bit memory. It operates on a single supply voltage ranging from 1.7V to 5.5V with a maximum clock frequency of 400 kHz. The device features a two-wire I²C compatible serial interface, Schmitt trigger inputs for noise suppression, and hardware write protection via the WP pin. It supports page writes up to 128 bytes with a maximum cycle time of 5 ms. The component is housed in an 8-lead SOIC package and functions within an industrial temperature range of -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on a single bus using configurable chip select inputs.
• Includes hardware write protection controlled by the WP pin to inhibit array modifications.
• Features output slope control to eliminate ground bounce during operation.

Memory IC Applications

• Data logging systems requiring non-volatile storage
• Configuration parameter storage in embedded controllers
• Calibration data retention in sensor modules

Memory IC Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm the voltage range compatibility with the target system design, as this variant supports low-voltage operation down to 1.7V. Ensure the I²C bus pull-up resistor values align with the 400 kHz clock speed requirements specified in the datasheet.

Memory IC Selection Notes

Select this component when a 512 Kbit EEPROM with I²C interface is required. It is suitable for applications needing operation at voltages as low as 1.7V. Consider the 8-lead SOIC package for through-hole or surface-mount assembly needs. Verify that the 400 kHz maximum clock frequency meets the system communication speed requirements.

Memory IC Part Context

This part belongs to the 24XX512 family of serial EEPROMs manufactured by Microchip Technology. The family includes variants like the 24LC512 and 24FC512, which share similar interfaces but differ in voltage ranges and clock speeds. The 24AA512 specifically supports lower voltage operation compared to the 24LC512 series.

Memory IC Replacement Considerations

The 24LC512-I/SN serves as a functional substitute if the application operates strictly above 2.5V. The 24FC512-I/SN offers higher clock speed capabilities up to 1 MHz. Verify package compatibility and voltage specifications before substitution.