11AA010-I/P

Overview

The Microchip Technology 11AA010-I/P is a 1 Kbit (128 x 8) serial EEPROM utilizing the UNI/O single I/O interface. It operates within a supply voltage range of 1.8V to 5.5V and supports a maximum clock frequency of 100 kHz. The device features industrial temperature ratings from -40°C to +85°C, housed in an 8-lead PDIP package. Key electrical characteristics include a typical active current of 1 mA and a maximum standby current of 1 µA.

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.

Applications

• Microcontroller system configuration storage
• Calibration data retention in industrial sensors
• Device identification and parameter logging

Procurement Notes

Verify the specific suffix 'I/P' corresponds to the Industrial temperature grade (-40°C to +85°C) and PDIP-8 package type as defined in the official datasheet. Confirm that the 1.8V minimum operating voltage requirement aligns with the target application's power supply rails before finalizing procurement.

Selection Notes

Select this component when a low-pin-count memory solution is required for applications needing robust noise immunity via Schmitt trigger inputs. The UNI/O interface minimizes GPIO usage compared to standard SPI or I2C protocols. Ensure the design accommodates the self-timed write cycle duration and page-write buffer limitations during high-frequency write operations.

Part Context

This part belongs to the 11XX family of serial EEPROMs, which includes variants ranging from 1 Kbit to 16 Kbit. The 'AA' designation indicates support for low-voltage operation down to 1.8V, distinguishing it from the 'LC' series which requires a minimum of 2.5V. All members share the same core UNI/O architecture and command set.

Replacement Considerations

The 11LC010-I/P serves as a functional substitute within the same package and interface family, provided the system supply voltage remains above 2.5V. Other density variants such as the 11AA020 or 11AA040 may be used if additional memory capacity is acceptable.