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The AT93C56-10SC-2.7 is a serial Electrically Erasable Programmable Read-Only Memory (EEPROM) manufactured by Atmel (now part of Microchip Technology).

Specifications:

• Memory Size: 2K bits (256 x 8 or 128 x 16)
• Interface: Microwire-compatible 3-wire serial interface
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Cycle Time: 10ms (max)
• Endurance: 1,000,000 write cycles
• Data Retention: 100 years
• Package: 8-lead SOIC (150 mil)

Descriptions:

• The AT93C56 is a low-power, high-reliability EEPROM with a simple serial interface.
• It supports both 8-bit and 16-bit organization modes.
• Features a software write protection mechanism to prevent accidental writes.
• Compatible with Microwire and SPI protocols.

Features:

• Low Power Consumption:
• Active current: 3mA (max)
• Standby current: 20μA (max)
• Built-in Error Detection: Sequential read operation for data verification.
• Self-Timed Write Cycle: No external timing components required.
• Page Write Mode: Allows writing up to 16 bytes in a single operation.
• Industrial-Grade Reliability: Suitable for harsh environments.

This EEPROM is commonly used in automotive, industrial, and consumer electronics applications for storing configuration data, calibration settings, and other non-volatile parameters.