11LC080-E/MS

Overview

The Microchip Technology 11LC080-E/MS is an 8 Kbit (1,024 x 8) serial EEPROM utilizing the UNI/O single-wire interface. It operates within a voltage range of 2.5 V to 5.5 V and supports a maximum bus frequency of 100 kHz. The device features a 16-byte page-write buffer and includes block write protection capabilities. It is housed in an 8-lead MSOP package and is rated for an extended industrial temperature range from -40°C to +125°C.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding.
• Includes built-in power-on/off data protection and a write enable latch mechanism.
• Features Schmitt trigger inputs on the SCIO pin for enhanced noise suppression.
• Provides output slope control to minimize ground bounce during signal transitions.

Applications

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

Procurement Notes

Verify that the specific ordering suffix corresponds to the Automotive grade (-E) with the specified -40°C to +125°C operating range. Confirm the package type matches the required MSOP footprint. Ensure the design accounts for the single-wire UNI/O protocol requirements rather than standard SPI or I2C interfaces.

Selection Notes

Select this component when a single-pin serial interface is required to minimize PCB trace count. The Automotive grade ensures reliability under high thermal stress conditions. Consider the 16-byte page buffer size for write optimization and verify compatibility with the master controller's ability to implement the UNI/O Manchester encoding timing.

Part Context

This part belongs to the 11LCXXX family of serial EEPROMs designed for low-pin-count applications. Unlike the 11AA series which supports lower voltages down to 1.8V, the 11LC series is optimized for 2.5V to 5.5V operation. The 'E' suffix denotes the extended temperature variant suitable for automotive environments.

Replacement Considerations

The 11LC080-I/MS serves as the Industrial grade alternative with a -40°C to +85°C range. Other densities in the same package include the 11LC040 and 11LC160.