11AA010-I/SN

Overview

The Microchip Technology 11AA010-I/SN is a 1 Kbit (128 x 8) serial EEPROM utilizing the UNI/O single I/O bus. It operates within a supply voltage range of 1.8V to 5.5V and supports industrial temperature ranges from -40°C to +85°C. The device features a maximum bit rate of 100 kbps, typical active current of 1 mA, and maximum standby current of 1 µA. It includes a 16-byte page-write buffer, self-timed write cycles up to 10 ms, and high reliability with 1 million erase/write cycles and over 200 years data retention.

Feature Summary

• Supports the patented UNI/O single I/O serial interface using Manchester encoding for clock and data synchronization on one pin.
• Includes built-in write protection mechanisms such as power-on/off data protection circuits and software-configurable block write protection.
• Features Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce effects.
• Provides status register access to monitor write-in-progress states and write enable latch conditions.

Applications

• Embedded systems requiring low-pin-count memory solutions
• Industrial applications operating in harsh electrical environments
• Battery-powered devices needing ultra-low standby current consumption

Procurement Notes

Verify the specific suffix 'I/SN' corresponds to the Industrial temperature grade (-40°C to +85°C) and SOIC-8 package. Confirm that the 1.8V minimum voltage requirement aligns with your system's power rails, as this differs from the 2.5V minimum of the 11LC series. Ensure compatibility with the UNI/O protocol implementation in your microcontroller firmware.

Selection Notes

Select this component when minimizing GPIO usage is critical due to the single-wire interface. Choose the 11AA series over the 11LC series if operation below 2.5V is required, as the AA series supports down to 1.8V. Consider the SOIC-8 package for standard surface-mount assembly processes. Verify that the 16-byte page size fits your application's write granularity requirements.

Part Context

This part belongs to the 11XX family of serial EEPROMs from Microchip Technology. The family offers densities ranging from 1 Kbit to 16 Kbit. The 11AA variant specifically denotes support for lower voltage operations starting at 1.8V, distinguishing it from the 11LC variant which requires a minimum of 2.5V. Both share identical functional interfaces and packaging options.

Replacement Considerations

The 11LC010-I/SN is a compatible alternative within the same family but requires a minimum supply voltage of 2.5V instead of 1.8V. Other density variants like the 11AA020 or 11AA040 offer larger storage capacities but maintain the same interface and package footprint.