11LC160T-E/TT

Overview

The Microchip Technology 11LC160T-E/TT is a 16 Kbit serial EEPROM utilizing the UNI/O single I/O interface. It features a 2,048 x 8 organization with a 16-byte page-write buffer. Operating within a 2.5V to 5.5V supply range, it supports a maximum clock frequency of 100 kHz. The device offers high reliability with 1,000,000 erase/write cycles and over 200 years data retention. It includes block write protection and power-on/off data protection. The component operates from -40°C to +125°C in a SOT-23-3 package.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol for simplified microcontroller interfacing.
• Includes built-in write protection mechanisms such as a write enable latch and power-on/off data protection circuitry.
• Features Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce.
• Provides hardware block write protection allowing selection of none, 1/4, 1/2, or all array protection.

Applications

• Interfacing with microcontrollers requiring non-volatile storage via discrete I/O lines.
• ASIC applications needing low-pin-count serial memory solutions.
• Industrial systems operating within extended temperature ranges.
• Automotive electronics requiring high reliability and ESD protection.

Procurement Notes

Verify the specific suffix 'E' confirms the Automotive temperature range (-40°C to +125°C) rather than Industrial. Confirm the 'TT' suffix corresponds to the SOT-23-3 package type. Ensure the ordering code matches the 16Kbit density variant distinct from the 11LC161 series which uses a different device address. Check RoHS compliance status if required by your manufacturing standards.

Selection Notes

Select this part when a single-wire serial interface is preferred over standard SPI or I2C to conserve GPIO pins. Choose the 11LC160 over the 11LC161 if the specific device address 0xA0 is required for bus compatibility. Consider the 1mA active current consumption against system power budgets. Ensure the master controller can implement the Manchester encoding timing requirements for the UNI/O protocol.

Part Context

This component belongs to the 11XX family of Serial Electrically Erasable PROMs, ranging from 1 Kbit to 16 Kbit. The family supports both UNI/O and I2C interfaces depending on the specific model number prefix (AA vs LC). The 11LC series specifically requires a minimum 2.5V supply voltage, distinguishing it from the 11AA series which supports lower voltages down to 1.8V.

Replacement Considerations

Public confirmed substitute part numbers: 11LC160T-I/TT