11LC020-I/SN

Overview

The Microchip Technology 11LC020-I/SN is a 2 Kbit serial EEPROM organized as 256 x 8 bits. It utilizes the UNI/O single I/O serial interface bus with Manchester encoding, supporting 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 8-lead MSOP package. Designed for industrial applications, it functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding for combined clock and data transmission on the SCIO pin.
• Includes built-in write protection mechanisms such as power-on/off data protection circuitry and a configurable write enable latch.
• Features Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce during operation.

Applications

• Microcontroller-based systems requiring non-volatile data storage
• Industrial control devices needing reliable parameter retention
• Embedded systems utilizing single I/O line communication interfaces

Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'SN' indicates the SOIC package, while confirming the specific model requested matches the MSOP package availability. Ensure compatibility with the 2.5V to 5.5V operating voltage range required by the application design.

Selection Notes

Select this component when a single-wire serial interface is preferred over multi-pin buses like I2C or SPI. It is suitable for applications requiring moderate data density with robust write protection features. Consider the MSOP package constraints if board space is limited compared to standard SOIC options.

Part Context

This part belongs to the 11LCXXX family of serial EEPROMs from Microchip Technology. These devices are designed for low-power applications and offer high reliability with long data retention capabilities. The family supports various memory densities and packaging options to suit different embedded system requirements.

Replacement Considerations

Check datasheet DS22067J for compatible alternatives within the 11LC series. Verify pinout and electrical specifications match before substitution. No direct public substitute part numbers are confirmed in the provided documentation.