11LC010T-I/TT

Overview

The Microchip Technology 11LC010T-I/TT 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 a 3-lead SOT-23 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 the SCIO pin.
• Includes built-in power-on/off data protection and a write enable latch for array security.
• Features Schmitt trigger inputs for noise suppression and output slope control to minimize ground bounce.
• Provides high reliability with one million erase/write cycle endurance and over 200 years of data retention.

Applications

• Microcontroller system configuration storage
• Calibration data and parameter logging
• Low-pin-count embedded memory applications

Procurement Notes

Verify that the ordering suffix 'TT' corresponds to the SOT-23-3 package and reel packaging format as specified in the datasheet. Confirm the 'I' temperature grade matches the required industrial operating range of -40°C to +85°C. Ensure the supply voltage meets the minimum 2.5 V requirement for the LC series.

Selection Notes

Select this component when a single-wire interface is required to minimize pin count. The 11LC010T-I/TT is suitable for applications needing 1 Kbit of non-volatile storage. Compare against the 11AA010 if operation below 2.5 V is necessary, as the AA series supports 1.8 V. Consider the MSOP or SOIC packages if surface area allows for larger footprints.

Part Context

This part belongs to the 11XX family of serial EEPROMs, which includes densities from 1 Kbit to 16 Kbit. The LC series specifically denotes devices operating with a minimum voltage of 2.5 V, distinguishing them from the AA series which supports lower voltages down to 1.8 V. All members share the same UNI/O protocol and command set.

Replacement Considerations

The 11AA010T-I/TT offers identical functionality but supports a lower voltage range starting at 1.8 V. Other density options in the same package include the 11LC020T-I/TT (2 Kbit), 11LC040T-I/TT (4 Kbit), and 11LC080T-I/TT (8 Kbit).

FAQ

How does the UNI/O interface handle clock signals?

The UNI/O interface combines clock and data into a single serial bit stream (SCIO) using Manchester encoding. The receiver extracts the clock signal internally to decode timing and data values.

What happens if a page write crosses a physical boundary?

If a page write operation attempts to cross a physical page boundary, the address counter rolls over to the beginning of the current page. Data continues to be written there, potentially overwriting existing information.