11LC010T-E/MS

Overview

The Microchip Technology 11LC010T-E/MS is a 1 Kbit (128 x 8) serial electrically erasable programmable read-only memory (EEPROM). It utilizes the UNI/O single I/O bus interface with a maximum clock frequency of 100 kHz. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports surface-mount SOT-23-3 packaging. It features industrial temperature ratings from -40°C to +85°C, high endurance of 1,000,000 write cycles, and data retention exceeding 200 years.

Feature Summary

• Supports the UNI/O single I/O serial bus protocol using Manchester encoding for combined clock and data transmission on the SCIO pin.
• Includes built-in power-on/off data protection circuitry and a write enable latch to prevent accidental writes.
• Features Schmitt trigger inputs on the SCIO line for enhanced noise suppression and output slope control to minimize ground bounce.
• Provides block write protection capabilities allowing configuration to protect none, one-quarter, one-half, or the entire memory array.

Applications

• Microcontroller system configuration storage
• Calibration data retention in embedded devices
• Parameter logging in low-pin-count sensors

Procurement Notes

Verify that the ordering suffix 'E' corresponds to the extended temperature range (-40°C to +125°C) as specified in the selection table, while confirming the package type matches the required PCB footprint. Ensure the specific revision level aligns with design requirements. Cross-reference the datasheet DS22067J for absolute maximum ratings to prevent damage during handling or operation.

Selection Notes

Select this component when a single-wire interface is required to minimize pin count compared to standard I2C or SPI EEPROMs. The 11LC010T-E/MS is suitable for applications needing robust write protection and high reliability. Consider the 16-byte page-write buffer for efficient data updates. Verify that the 2.5V minimum operating voltage meets the system's power rail specifications.

Part Context

This part belongs to the 11LCXXX family of 1 Kbit to 16 Kbit serial EEPROMs from Microchip Technology. The family shares common UNI/O bus architecture and command sets. Variants differ primarily in density, voltage ranges (1.8V vs 2.5V), and temperature grades. The 11LC series specifically targets applications requiring 2.5V minimum operation.

Replacement Considerations

Direct substitutes within the same UNI/O family include the 11LC010-I/TT for industrial temperature range or other densities like 11LC020 if higher capacity is needed. Check package compatibility for SOT-23-3 replacements.