General Description
The AK93C45C/55C/65C is a 1024/2048/4096-bit serial CMOS EEPROM divided into 64/128/256
registers of 16 bits each. The AK93C45C/55C/65C has 6 instructions such as READ, WRITE,
PAGE WRITE, EWEN, EWDS and WRAL.   Those instructions control the AK93C45C/55C/65C.
The AK93C45C/55C/65C can operate full function under wide operating voltage range. 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 = 1.5V to 5.5V(READ)
                                 VCC = 1.6V to 5.5V(WRITE/WRAL/PAGE WRITE) 
…AK93C45C ・・1024 bits, 64 x 16 organization
AK93C55C ・・2048 bits, 128 x 16 organization
AK93C65C ・・4096 bits, 256 x 16 organization
…SERIAL INTERFACE
  - Interfaces with popular microcontrollers and standard microprocessors
  -1.0MHz(1.5V≤VCC<2.5V), 4.0MHz(2.5V≤VCC≤5.5V)
…LOW POWER CONSUMPTION
  - 0.8µA Max. Standby
…High Reliability
  - Endurance  : 1000K E/W cycles / Address
  - Data Retention : 10 years
…Automatic address increment (READ)
…Automatic write cycle time-out with auto-ERASE
…Busy/Ready status signal
…Software and Hardware controlled write protection
…IDEAL FOR LOW DENSITY DATA STORAGE
  - Low cost, space saving, 8-pin package (TMSOP, SON, USON)