24AA128-I/MS

Memory IC Overview

The Microchip Technology 24AA128-I/MS is a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates on a single supply voltage ranging from 1.7V to 5.5V and supports I2C compatible two-wire serial interface with a maximum clock frequency of 400 kHz. The device features a 64-byte page write buffer, hardware write-protect capability, and Schmitt trigger inputs for noise suppression. It is housed in an 8-lead MSOP package and is rated for industrial temperature ranges from -40°C to +85°C.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using configurable chip select bits.
• Includes hardware write-protect functionality via the WP pin to inhibit write operations.
• Features output slope control designed to eliminate ground bounce during operation.

Memory IC Applications

• Personal communications systems
• Data acquisition applications
• Advanced low-power electronic designs

Memory IC Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm that the voltage range and interface speed align with system requirements. Check for RoHS compliance status if environmental regulations apply. Ensure the correct revision level is selected for design compatibility.

Memory IC Selection Notes

Select this component when a 128 Kbit non-volatile memory solution is needed with low power consumption. The MSOP package is suitable for space-constrained surface mount designs. Verify that the operating voltage falls within the 1.7V to 5.5V range. Consider the 400 kHz clock limit for high-speed data transfer needs.

Memory IC Part Context

This part belongs to the 24XX128 family of serial EEPROMs manufactured by Microchip Technology. It shares functional similarities with the 24LC128 and 24FC128 models but differs in voltage range and clock speed specifications. The 'I' designation indicates industrial temperature rating, while '/MS' specifies the 8-lead MSOP package configuration.

Memory IC Replacement Considerations

Direct substitutes include other 24AA128 variants with different packages such as 24AA128-I/SN or 24AA128-I/P. Cross-family replacements like 24LC128 require verification of minimum voltage levels. Ensure any alternative maintains I2C compatibility and similar physical dimensions for board layout retention.