11LC161T-E/SN

Overview

The Microchip Technology 11LC161T-E/SN is a 16 Kbit (2048 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 clock frequency of 100 kHz. The device features a page-write buffer for up to 16 bytes, block write protection, and built-in power-on/off data protection. It is housed in an 8-lead MSOP package and rated for automotive temperature ranges (-40°C to +125°C).

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding.
• Includes a STATUS register with Write-In-Progress and Write Enable Latch bits.
• Features Schmitt trigger inputs for noise suppression and output slope control.
• Provides high reliability with over 1,000,000 erase/write cycles and greater than 200 years data retention.

Applications

• Interfacing with microcontrollers requiring a discrete I/O line for memory storage.
• ASIC applications needing low-pin-count non-volatile data retention.
• Automotive electronic systems operating within extended temperature ranges.

Procurement Notes

Verify that the ordering suffix 'E' corresponds to the Automotive temperature grade (-40°C to +125°C) and 'SN' indicates the SOIC-8 package, as datasheet tables list 'MS' for MSOP. Confirm the specific revision matches the required electrical characteristics for your supply voltage conditions.

Selection Notes

Select this component when a single-wire interface is preferred over standard I2C or SPI to minimize pin count. Ensure the application requires the 2.5 V minimum supply voltage, as opposed to the 1.8 V capability found in the 11AA series. Verify that the 100 kHz bus speed meets the system timing requirements.

Part Context

This part belongs to the 11LCXXX family of 1 Kbit through 16 Kbit Serial Electrically Erasable PROMs. These devices are designed for low-power applications and support various packages including PDIP, SOIC, MSOP, TDFN, SOT-23, and TO-92. The family utilizes a common instruction set and communication protocol across different densities.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source material.