11AA010-I/S16K

Overview

The Microchip Technology 11AA010-I/S16K is a 1 Kbit (128 x 8) serial EEPROM utilizing the UNI/O single I/O bus interface. It operates within a supply voltage range of 1.8V to 5.5V and supports industrial temperature ranges (-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, and block write protection capabilities.

Feature Summary

• Supports the patented UNI/O single I/O serial bus protocol using Manchester encoding for combined clock and data transmission on the SCIO pin.
• Features built-in power-on/off data protection circuitry and a write enable latch to prevent accidental writes during low-voltage conditions.
• Includes Schmitt trigger inputs for noise suppression and output slope control to eliminate ground bounce effects.

Applications

• Microcontroller system configuration storage
• Calibration data retention in sensor modules
• Device identification and parameter logging

Procurement Notes

Verify the specific suffix 'S16K' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure the ordering code matches the required industrial temperature grade and voltage range. Confirm RoHS compliance status with the supplier prior to purchase.

Selection Notes

Select this component when a single-pin serial interface is required to minimize PCB trace count. It is suitable for applications needing low standby power consumption and robust write protection mechanisms. Consider the 16-byte page buffer size for efficient data writing operations compared to byte-write only devices.

Part Context

This part belongs to the 11AA/11LC family of serial EEPROMs from Microchip Technology. The 'AA' designation indicates support for the 1.8V minimum supply voltage, distinguishing it from the 'LC' series which requires a minimum of 2.5V. The family shares common command sets and physical characteristics across various memory densities.

Replacement Considerations

Direct replacements include other members of the 11AA010 family such as 11AA010-I/P or 11AA010-I/SN, provided the package footprint is compatible. Cross-family substitutes like 11LC010 require verification of the 2.5V minimum operating voltage constraint.