11AA160T-I/MNY

Overview

The Microchip Technology 11AA160T-I/MNY is a 16 Kbit (2,048 x 8) serial EEPROM utilizing the UNI/O single-wire interface. It operates within a supply voltage range of 1.8 V to 5.5 V and supports a maximum bus frequency of 100 kHz. The device features a 16-byte page-write buffer and industrial temperature ratings from -40°C to +85°C. Packaged in an 8-lead TDFN format, it offers high reliability with over one million erase/write cycles and data retention exceeding 200 years.

Feature Summary

• Supports the patented UNI/O single I/O serial protocol using Manchester encoding for combined clock and data transmission on the SCIO pin.
• Includes built-in write protection mechanisms such as power-on/off data protection circuitry and a configurable write enable latch.
• Features Schmitt trigger inputs for noise suppression and output slope control designed to eliminate ground bounce during operation.

Applications

• Microcontroller system configuration storage
• Calibration data retention in embedded devices
• Parameter logging in low-pin-count sensors

Procurement Notes

Verify that the specific ordering suffix 'MNY' corresponds to the TDFN package type required for your PCB layout. Confirm the 'I' designation matches the necessary industrial temperature range specifications for your operational environment before finalizing component selection.

Selection Notes

Select this component when a single-wire interface is required to minimize pin count compared to standard SPI or I2C alternatives. Ensure the host controller can implement the Manchester encoding protocol and handle the specific start header and acknowledge sequences defined by the UNI/O specification.

Part Context

This part belongs to the 11AAXXX/11LCXXX family of serial EEPROMs manufactured by Microchip Technology. While the 11LC series variants typically require a minimum 2.5 V supply, the 11AA series specifically supports low-voltage operation down to 1.8 V, making it suitable for battery-powered applications.

Replacement Considerations

Direct substitutes within the same family include the 11AA160T-I/MS (MSOP package) or 11AA160-I/P (PDIP package). Cross-family replacements like the 11LC160 are electrically similar but differ in minimum operating voltage requirements.