The Microchip AT93C66B is a 4 Kb Microwire (3-wire) Serial EEPROM organized as either 512 x 8 or 256 x 16, selectable in hardware using the ORG pin. The device is optimized for use in consumer, industrial, and automotive applications where reliable and dependable nonvolatile memory storage is essential. The EEPROM is available in a variety of space-saving packaging options.
Additional Features
User selectable 512 x 8 or 256 x 16 Organization (4 Kbit)
Industry Standard Microwire Serial I/O
Up to 2 MHz clock compatibility
Self-Timed Erase and Write Cycles (5 ms max.)
Low Power Consumption
Read current 0.5 mA (Typ), 2.0 mA (Max)
Write current 0.5 mA (Typ),2.0 mA (Max)
Standby current 10.0 uA (Typ), 15.0 uA (Max)
Software Write-Protection
More than 1 million erase/write cycles
Data retention > 100 years
Extended Temperature Ranges 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 8-pin SOIC (150 mil), 8-pin TSSOP, 8-pad UDFN, 8-pad XDFN, and 8-ball VFBGA packages
The Microchip AT93C66B is a 4 Kb Microwire (3-wire) Serial EEPROM organized as either 512 x 8 or 256 x 16, selectable in hardware using the ORG pin. The device is optimized for use in consumer, industrial, and automotive applications where reliable and dependable nonvolatile memory storage is essential. The EEPROM is available in a variety of space-saving packaging options.
Additional Features
- User selectable 512 x 8 or 256 x 16 Organization (4 Kbit)
- Industry Standard Microwire Serial I/O
- Up to 2 MHz clock compatibility
- Self-Timed Erase and Write Cycles (5 ms max.)
- Low Power Consumption
- Read current 0.5 mA (Typ), 2.0 mA (Max)
- Write current 0.5 mA (Typ),2.0 mA (Max)
- Standby current 10.0 uA (Typ), 15.0 uA (Max)
- Software Write-Protection
- More than 1 million erase/write cycles
- Data retention > 100 years
- Extended Temperature Ranges 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 8-pin SOIC (150 mil), 8-pin TSSOP, 8-pad UDFN, 8-pad XDFN, and 8-ball VFBGA packages
