General Description
The AK93C45B/55B/65B/75B is a 1024/2048/4096/8192-bit serial CMOS EEPROM divided into 64/128/256/512 registers of 16 bits each. The AK93C45B/55B/65B/75B has 4 instructions such as READ, WRITE, EWEN and EWDS. Those instructions control the AK93C45B/55B/65B/75B. The AK93C45B/55B/65B/75B can operate full function under wide operating voltage range from 1.8V to 5.5V. The charge up circuit is integrated for high voltage generation that is used for write operation.

FEATUREs
■ ADVANCED CMOS EEPROM TECHNOLOGY
■ READ/WRITE NON-VOLATILE MEMORY
■ WIDE VCC OPERATION : VCC = 1.8V to 5.5V
■ AK93C45B ・・1024 bits, 64 x 16 organization
   AK93C55B ・・2048 bits, 128 x 16 organization
   AK93C65B ・・4096 bits, 256 x 16 organization
   AK93C75B ・・8192 bits, 512 x 16 organization
■ SERIAL INTERFACE
   - Interfaces with popular microcontrollers and standard microprocessors
■ LOW POWER CONSUMPTION
   - 0.8µA Max. Standby
■ High Reliability
   - Endurance : 100K cycles
   - Data Retention : 10 years
■ Automatic address increment (READ)
■ Automatic write cycle time-out with auto-ERASE
■ Busy/Ready status signal
■ Software controlled write protection
■ IDEAL FOR LOW DENSITY DATA STORAGE
   - Low cost, space saving, 8-pin package (MSOP, SON)