11LC010-I/MS

Overview

The Microchip Technology 11LC010-I/MS 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 MSOP-8 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 eliminate ground bounce.
• Provides hardware block write protection allowing configuration to protect none, 1/4, 1/2, or all of the memory array.

Applications

• Interfacing with microcontrollers requiring low-pin-count non-volatile storage
• Embedded systems needing parameter storage with minimal I/O overhead
• Industrial applications requiring robust noise immunity via Schmitt triggers

Procurement Notes

Verify that the ordering suffix 'I' corresponds to the Industrial temperature range (-40°C to +85°C) and 'MS' indicates the MSOP-8 package. Confirm the specific density matches the 11LC010 designation rather than other family members like 11LC020 or 11LC040. Ensure the design accounts for the single-wire UNI/O protocol requirements.

Selection Notes

Select this component when a single-wire interface is preferred over multi-wire protocols like SPI or I2C to save GPIO pins. It is suitable for designs operating at 2.5 V to 5.5 V where low standby current is beneficial. Consider the 16-byte page buffer size for write efficiency and verify that the master controller can implement the required Manchester encoding timing.

Part Context

This part belongs to the 11XX family of serial EEPROMs from Microchip Technology. The family includes variants with densities ranging from 1 Kbit to 16 Kbit. The 'LC' designation typically indicates a 2.5 V minimum operating voltage, distinguishing it from 'AA' variants which support lower voltages down to 1.8 V.

Replacement Considerations

Direct substitutes within the same UNI/O family include the 11LC010T-I/TT (SOT-23-3 package). For different packages, check the 11LC010-P or 11LC010-SN options. Note that 11AA010 devices are functionally similar but support a wider voltage range starting at 1.8 V.