11LC020T-I/MS

Overview

The Microchip Technology 11LC020T-I/MS is a 2 Kbit (256 x 8) serial electrically erasable programmable read-only memory (EEPROM). It utilizes the UNI/O single I/O bus interface with a maximum clock frequency of 100 kHz. The device operates within a supply voltage range of 2.5 V to 5.5 V and is housed in an MSOP-8 package. Designed for industrial applications, it supports temperatures from -40°C to +85°C.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding on the SCIO pin.

Applications

• Microcontroller system configuration storage
• Calibration data retention
• Device identification and parameter logging

Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'MS' indicates the MSOP-8 package. Confirm the specific density matches the 2 Kbit requirement. Ensure the design accounts for the 2.5 V minimum operating voltage.

Selection Notes

Select this component when a low-pin-count serial EEPROM is required for non-volatile data storage. The UNI/O interface minimizes microcontroller I/O usage compared to standard SPI or I2C protocols. Verify that the 16-byte page write buffer meets the application's throughput requirements.

Part Context

This part belongs to the 11LC family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with other devices in the series, such as the 11LC010 and 11LC040, differing primarily in memory density and organization while maintaining compatible command sets and interfaces.

Replacement Considerations

Direct substitutes include the 11LC020T-E/MS for extended temperature ranges or the 11AA020T-I/MS for lower voltage operation down to 1.8V. Cross-reference pinouts and command sets before implementation.