The Microchip 93LC66AT/ST device is a 4Kb Microwire (3-wire) Serial EEPROM with dedicated 8-bit memory organization and a voltage operation range of 2.5 - 5.5V. Also available are the 93LC66B for dedicated 16-bit memory organization and the 93LC66C for hardware selectable word size using the ORG pin. The 93LC66AT/ST is optimized for use in consumer, industrial, and automotive applications where reliable and dependable nonvolatile memory storage is essential. The device is available in a variety of Pb-free packages including SOT-23, PDIP, SOIC, MSOP, DFN and TSSOP.
For product comparison, please consider:93LC66B,93LC66C
Feature
- Industry Standard Microwire Serial I/O
 - Up to 2 MHz clock compatibility
 - 512 x 8-Bit Organization
 - Automatic Erase All (ERAL) Before Write All (WRAL)
 - Self-Timed Erase and Write Cycles (6 ms max.)
 - Low Power Consumption:
   
- Read current 100 uA (Typ), 500 uA (Max)
 - Write current 500 uA (Typ), 2 mA (Max)
 - Standby current 1 uA (Max at -40 to 85°C)
 
 - Software Write-Protection
 - More than 1 million erase/write cycles
 - Data retention > 200 years
 - Extended Temperature Range Available (Grade 1 as defined in AEC-Q100):
   
- Grade 1 Temperature Range: -40°C to 125°C
 
 - Qualified for Automotive Applications
 - Factory Programming Available
 - Available in SOT-23-6, PDIP-8, SOIC-8, MSOP-8, 2x3 DFN-8 and TSSOP-8
 




















