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AK6440B

AKM
Part Number AK6440B
Manufacturer AKM
Description CMOS EEPROM
Published May 11, 2014
Detailed Description ASAHI KASEI [AK6440B] AK6440B 4096bit Serial CMOS EEPROM Features         ADVANCED CMOS EEPROM TECHNOLOGY ...
Datasheet PDF File AK6440B PDF File

AK6440B
AK6440B

Overview
ASAHI KASEI [AK6440B] AK6440B 4096bit Serial CMOS EEPROM Features         ADVANCED CMOS EEPROM TECHNOLOGY Wide VCC (1.
8V ~ 5.
5V) operation 4096 bits: 256×16 organization ONE CHIP MICROCOMPUTER INTERFACE - Interface with one chip microcomputer's serial communication port directly LOW POWER CONSUMPTION - 0.
75mA Max.
(Read operation) - 0.
8µA Max.
(Standby mode) HIGH RELIABILITY - Endurance : 100K cycles - Data Retention : 10 years SPECIAL FEATURES - High speed operation ( f MA X =1MHz: VCC=2.
5V ) - Automatic write cycle time-out with auto-ERASE - Automatic address increment (READ) - Software and Hardware controlled write protection IDEAL FOR LOW DENSITY DATA STORAGE - Low cost, space saving, 8-pin package (MSOP, SON) DO DATA REGISTER INSTRUCTION REGISTER 16 16 DI R/W AMPS AND AUTO ERASE INSTRUCTION DECODE, CONTROL AND CLOCK GENERATION EEPROM 4096bit 256 ×16 ADD.
BUFFERS DECODER CS VPP SW SK RESET VREF VPP GENERATOR Block diagram DAS03E-01 - 1 http://www.
Datasheet4U.
com 2012/09 ASAHI KASEI [AK6440B] General Description The AK6440B is a 4096bit, serial, read/write, non-volatile memory device fabricated using an advanced CMOS EEPROM technology.
The AK6440B has 4096bits of memory organized into 256 registers of 16 bits each.
The AK6440B 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.
The AK6440B can connect to the serial communication port of popular one chip microcomputer directly (3 line negative clock synchronous interface).
At write operation, AK6440B 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, AK6440B takes out the read data from a register to data output pin (DO) synchronously with falling edge of SK.
The AK6440B has 4 instructions such as READ, WRITE, WREN (write enable) and WRDS (write disable).
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