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Datasheet
93LC56BT-I/OT – EEPROM Memory IC | 2Kbit, Microwire Interface, 2MHz | SOT-23-6 Package
The 93LC56BT-I/OT from Microchip Technology is a high-reliability 2Kbit (128×16-bit) Serial Electrically Erasable Programmable Read-Only Memory (EEPROM) that utilizes the Microwire (3-wire) serial interface. Designed for use in industrial, consumer, and automotive systems, it ensures dependable non-volatile data storage across a wide operating voltage and temperature range. With self-timed erase/write cycles, software write-protection, and long data retention, this device offers exceptional endurance and low-power operation for demanding embedded applications.
Key Features

Memory Organization: 2Kbit organized as 128×16-bit words

Interface Type: Industry-standard Microwire (3-wire) serial interface

Clock Frequency: Supports up to 2MHz operation

Operating Voltage Range: 2.5V to 5.5V for wide compatibility

Write Operations:

Self-timed Erase and Write cycles (6ms max)

Automatic Erase All (ERAL) before Write All (WRAL)

Low Power Consumption:

Read current: 100uA (typ.), 500A (max)

Write current: 500uA (typ.), 2mA (max)

Standby current: 1uA (max at -40 C to+85 C)

Software Write Protection: Prevents accidental data modification

Endurance and Retention:

>1 million erase/write cycles

>200 years of data retention

Temperature Range:

Grade 1 Automotive: 40 C to+125 C

Packaging Options: Compact SOT-23-6 for space-constrained designs