11LC160-E/SN

Overview

The Microchip Technology 11LC160-E/SN is a 16 Kbit serial electrically erasable programmable read-only memory (EEPROM) device. It features a UNI/O single-wire interface and operates within a supply voltage range of 2.5 V to 5.5 V. The memory organization is 2,048 x 8 bits with a page write buffer size of 16 bytes. The device supports a maximum bus frequency of 100 kHz and is housed in an 8-lead SOIC package. It 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 interface protocol using Manchester encoding on a single data line.
• Includes built-in write protection mechanisms such as power-on/off data protection circuitry and a write enable latch.
• Features block write protection allowing configuration to protect none, one-quarter, one-half, or all of the memory array.
• Provides high reliability with Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.

Applications

• Interfacing with microcontrollers requiring low pin-count non-volatile storage
• Industrial systems operating in extended temperature environments
• Embedded applications needing simple single-wire serial communication

Procurement Notes

Verify that the ordering suffix corresponds to the specific package type and temperature grade required for your design. Confirm that the device meets RoHS compliance standards if mandated by your project specifications. Ensure compatibility with the host controller's ability to implement the UNI/O protocol timing requirements.

Selection Notes

Select this component when a single-wire interface is preferred to minimize pin usage on the host processor. Choose this part over lower density variants if 16 Kbit capacity is necessary. Consider the automotive temperature rating (-40°C to +125°C) for harsh environment deployments compared to standard industrial ranges.

Part Context

This device belongs to the 11LC160 family of serial EEPROMs manufactured by Microchip Technology. It shares architectural similarities with other members of the 11XX series, utilizing the same UNI/O bus protocol and instruction set. The family offers various densities and packaging options to suit different board space and connectivity constraints.

Replacement Considerations

Consult official Microchip documentation for verified cross-reference part numbers. Substitutions must match the UNI/O interface, voltage range, and package dimensions to ensure functional compatibility without hardware redesign.

FAQ

How does the UNI/O interface handle clock signals?

The UNI/O interface combines clock and data into a single serial bit stream using Manchester encoding, eliminating the need for a separate clock pin.

What is the purpose of the STATUS register?

The STATUS register provides control information including the Write-In-Progress bit, Write Enable Latch status, and Block Protection settings.