AK93C55CT

Microwire(TM) bus 2Kbit Serial CMOS EEPROM

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Description

The AK93C55C is a 2048-bit serial CMOS EEPROM divided into 128 registers of 16 bits each.

The AK93C55C has 6 instructions such as READ, WRITE, PAGE WRITE, EWEN, EWDS and WRAL.

Those instructions control the AK93C55C.

The AK93C55C 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.

A serial interface of AK93C55C, consisting of chip select (CS), serial clock (SK), data-in (DI) and data-out (DO),

can easily be controlled by popular microcontrollers or standard microprocessors. AK93C55C takes in the write data

from data input pin (DI) to a register synchronously with rising edge of input pulse of serial clock pin (SK).

And at read operation, AK93C55C takes out the read data from a register to data output pin (DO) synchronously with rising edge of SK.

The DO pin is usually in high impedance state. The DO pin outputs "L" or "H" in case of data output or BusyB/Ready signal output.

Key Features

□ WIDE VCC OPERATION : VCC = 1.5V to 5.5V(READ)

                                                 VCC = 1.6V to 5.5V(WRITE/WRAL/PAGE WRITE)

□ 2048 bits, 128 × 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

□ BusyB/Ready status signal

□ Software and Hardware controlled write protect

□ 8pin TMSOP

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Block Diagram

Block Diagram

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