11LC010-I/P

Overview

The Microchip Technology 11LC010-I/P is a 1 Kbit (128 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 bus frequency of 100 kHz. The device features a 16-byte page-write buffer, self-timed write cycles, and block write protection. It is housed in an 8-lead PDIP package and rated for industrial temperatures from -40°C to +85°C.

Feature Summary

• Supports the patented UNI/O single I/O serial protocol using Manchester encoding on a dedicated SCIO pin.
• Includes built-in power-on/off data protection circuitry and a write enable latch to prevent accidental writes.
• Features configurable block write protection allowing selection of none, one-quarter, one-half, or all array segments.

Applications

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

Procurement Notes

Verify that the ordering suffix 'P' corresponds to the 8-lead PDIP package type required for your specific board layout. Confirm the 'I' suffix matches the industrial temperature range specifications (-40°C to +85°C). Ensure the design accommodates the single-wire UNI/O interface requirements rather than standard multi-wire protocols.

Selection Notes

Select this component when a low-pin-count memory solution is required for non-volatile data storage. The UNI/O interface minimizes PCB trace count compared to I2C or SPI alternatives. Verify that the host controller can generate the specific Manchester-encoded timing sequences defined in the datasheet for reliable communication.

Part Context

This part belongs to the 11LCXXX family of serial EEPROMs manufactured by Microchip Technology. These devices are designed for applications requiring robust data retention and high endurance with minimal interface complexity. The family shares common command sets and electrical characteristics across various density options.

Replacement Considerations

Compatible substitutes include other members of the 11LC series such as the 11LC020 or 11LC040 if higher capacity is needed, provided the package and interface remain compatible. Cross-reference with the 11AA series only if lower voltage operation down to 1.8V is required, noting that the 11LC series is restricted to 2.5V minimum.