11LC080T-E/MNY

Overview

The Microchip Technology 11LC080T-E/MNY is an 8 Kbit (1,024 x 8) serial EEPROM utilizing the UNI/O single I/O bus interface. It operates within a voltage range of 2.5 V to 5.5 V and supports a maximum bit rate of 100 kbps. The device features a 16-byte page-write buffer and includes built-in write protection mechanisms such as block protection and power-on/off data protection. Designed for automotive applications, it functions reliably across an extended temperature range of -40°C to +125°C.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding
• Features a 16-byte page-write buffer with self-timed write cycles
• Includes hardware-based write protection via block protection bits and power-on/off circuitry
• Provides high reliability with over one million erase/write cycles and greater than 200 years of data retention

Applications

• Automotive electronic control units requiring non-volatile data storage
• Industrial systems needing robust memory in harsh thermal environments
• Embedded controllers utilizing single GPIO pins for low-pin-count memory access

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm that the supply voltage aligns with the 2.5 V to 5.5 V operational range. Ensure the design accounts for the UNI/O protocol timing requirements. Check for any recent product change notices regarding assembly or packaging modifications.

Selection Notes

Select this component when a single-wire interface is necessary to minimize pin count on the host microcontroller. It is suitable for designs operating at standard logic voltages starting from 2.5 V. Consider this part for applications demanding high endurance and long-term data retention in automotive-grade environments.

Part Context

This device belongs to the 11XX family of serial EEPROMs, which also includes the 11AA series. While functionally similar, the 11LC series is distinguished by its minimum operating voltage of 2.5 V, whereas the 11AA series supports operation down to 1.8 V. Both families share the same UNI/O interface and physical package options.

Replacement Considerations

Direct substitutes include other members of the 11LC family with different densities, such as the 11LC040 or 11LC160, provided the memory size meets application needs. Cross-family replacements like the 11AA080 are possible if the system voltage supports the lower 1.8 V threshold.