93LC66 4K EEPROM 4KB 512Kx8 Serial CMOS EEPROM Microwire Compatible Serial EEPROM DIP-8 Package IC

Description: 93LC66 EEPROM

93LC66 4K EEPROM 4KB 512Kx8 Serial CMOS EEPROM Microwire Compatible Serial EEPROM DIP-8 Package IC

The AT93C66 provides 4096 bits of serial electrically erasable programmable read-only memory (EEPROM), organized as 256 words of 8 bits each (when the ORG pin is connected to VCC), and 128 words of 8 bits each (when the ORG pin is tied to the ground). The device is optimized for use in many industrial and commercial applications where low-power and low-voltage operations are essential.

The AT93C66 is available in space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead EIAJ SOIC, 8-lead mini-MAP (MLP 2×3), 8-lead TSSOP, and 8-lead dBGA2 packages. The AT93C66 is enabled through the Chip Select pin (CS) and accessed via a three-wire serial interface consisting of Data Input (DI), Data Output (DO), and Shift Clock (SK). Upon receiving a Read instruction at DI, the address is decoded and the data is clocked out serially on the DO pin.

93C66 Pin Configuration

93C66 Key Feature

• Low-voltage and Standard-voltage Operation
  • 2.7 (VCC = 2.7V to 5.5V)
  • 1.8 (VCC = 1.8V to 5.5V)
• User-selectable Internal Organization
  • 1K: 128 x 8 or 64 x 16
  • 2K: 256 x 8 or 128 x 16
  • 4K: 512 x 8 or 256 x 16
• Three-wire Serial Interface
• 2 MHz Clock Rate (5V)
• Self-timed Write Cycle (10 ms max)
• High Reliability
  • Endurance: 1 Million Write Cycles
  • Data Retention: 100 Years

Features:

• Low-power CMOS technology
• ORG pin to select word size for ‘66C version
• 512 x 8-bit organization ‘A’ ver. devices (no ORG)
• 256 x 16-bit organization ‘B’ ver. devices (no ORG)
• Self-timed ERASE/WRITE cycles (including auto-erase)
• Automatic ERAL before WRAL
• Power on/off data protection circuitry
• Industry standard 3-wire serial I/O
• Device Status signal (READY/BUSY)
• Sequential READ function
• 1,000,000 E/W cycles
• Data retention > 200 years
• Temperature ranges supported:Industrial (I)  : -40°C to +85°CAutomotive (E): -40°C to +125°C
• Absolute Maximum Ratings(†)VCC:7.0V
• All inputs and outputs w.r.t. VSS : -0.6V to VCC +1.0V
• Storage temperature :-65°C to +150°C
• Ambient temperature with power applied:-40°C to +125°C
• ESD protection on all pins :≥ 4 kV

Package Include:

• 1 x 93LC66 EEPROM