24LC128T-I/MS

Memory IC Overview

The Microchip Technology 24LC128T-I/MS is a 16K x 8 (128 Kbit) Serial Electrically Erasable PROM (EEPROM). It operates on a single supply voltage ranging from 2.5V to 5.5V and features an I2C compatible two-wire serial interface with a maximum clock frequency of 400 kHz. The device supports page write operations with a buffer for up to 64 bytes and includes hardware write protection via the WP pin. It utilizes low-power CMOS technology, offering industrial temperature range operation from -40°C to +85°C in an 8-lead MSOP package.

Memory IC Feature Summary

• Supports cascading up to eight devices on the same bus using configurable chip select inputs A0, A1, and A2.
• Includes Schmitt trigger inputs on SDA and SCL pins to suppress noise spikes and eliminate ground bounce through output slope control.
• Features a self-timed erase/write cycle with a maximum page write time of 5 ms and hardware write protection capability.

Memory IC Applications

• Personal communications
• Data acquisition systems

Memory IC Procurement Notes

Verify that the specific ordering suffix corresponds to the MSOP package type and Industrial temperature grade. Confirm RoHS compliance status as required by project specifications. Ensure the component matches the manufacturer's current datasheet revision DS20001191T before finalizing procurement orders.

Memory IC Selection Notes

Select this component when a 128 Kbit non-volatile memory solution is required with I2C connectivity. The MSOP package is suitable for space-constrained surface mount designs. Note that the A0 and A1 pins are not connected in this package, limiting bus expansion to two devices compared to other packages.

Memory IC Part Context

This part belongs to the 24XX128 family, which also includes the 24AA128 and 24FC128 variants. These devices share identical pinouts and functional descriptions but differ in operating voltage ranges and maximum clock frequencies. The 24LC128 specifically requires a minimum supply voltage of 2.5V.

Memory IC Replacement Considerations

Compatible substitutes within the same family include 24LC128T-I/MF, 24LC128T-I/SM, and 24LC128T-I/ST. Verify package dimensions and pin compatibility when substituting.