AK6416AM

AK6416AM Datasheet

[AK6416A]

Part	Datasheet
AK6416AM	AK6416AM (pdf)

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ASAHI KASEI [AK6416A] AK6416A 16Kbit Serial CMOS EEPROM † ADVANCED CMOS EEPROM TECHNOLOGY † READ/WRITE NON-VOLATILE MEMORY - Wide Vcc 1.8V ~ 5.5V operation - 16384 bits 1024 16 organization † ONE CHIP MICROCOMPUTER INTERFACE - Interface with one chip microcomputer's serial communication port directly † LOW POWER CONSUMPTION - 0.8µA Max Standby mode † HIGH RELIABILITY -Endurance 100K cycles -Data Retention 10 years † SPECIAL FEATURES - High speed operation fMAX=4MHz Vcc=4.5V ~ 5.5V - Automatic write cycle time-out with auto-ERASE - Automatic address increment READ - Ready/Busy status signal - Software and Hardware controlled write protection † IDEAL FOR LOW DENSITY DATA STORAGE - Low cost, space saving, 8-pin package SSOP DAS02E-00 Block diagram 1999/05 ASAHI KASEI [AK6416A] General Description The AK6416A is a 16384bit, serial, read/write, non-volatile memory device fabricated using an advanced CMOS EEPROM technology. The AK6416A has 16384bits of memory organized into 1024 registers of 16 bits each. The AK6416A 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 AK6416A can connect to the serial communication port of popular one chip microcomputer directly 3 line negative clock synchronous interface . At write operation, AK6416A 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, AK6416A takes out the read data from a register to data output pin DO synchronously with falling edge of SK. The AK6416A has 4 instructions such as READ, WRITE, WREN write enable and WRDS write disable . Each instruction is organized by op-code block 8bits , address block 8bits and data 8bits When input level of SK pin is high level and input level of chip select CS pin is changed from high level to low level, AK6416A can receive the instructions. Special features of the AK6416A include automatic write time-out with auto-ERASE, Ready/Busy status signal output and ultra-low standby power mode when deselected CS=high . • Software and Hardware controlled write protection The AK6416A has 2 hardware and software write protection functions. After power on or after execution of WRDS write disable instruction, execution of WRITE instruction will be disabled. This write protection condition continues until WREN instruction is executed or Vcc is removed from the part. Execution of READ instruction is independent of both WREN and WRDS instructions. Reset pin should be low level when WRITE instruction is executed. When the Reset pin is high level, the WRITE instruction is not executed. • Ready/Busy status signal During the automatic write time-out period BUSY status , the AK6416A can't accept the other instructions. The AK6416A has 2 functions to know the Busy status from exterior. The RDY/BUSY pin indicates the Busy status regardless of the CS pin status. The RDY/BUSY pin outputs the low level regardless of the CS pin status during Busy status. Except the above status, this pin outputs high level. Also the DO pin indicates the Busy status. When input level of SK pin is low level and input level of CS pin is changed from high level to low level, the AK6416A is in the status output mode and the DO pin indicates the Ready/Busy status. The Ready/Busy status outputs on DO pin until CS pin is changed from low level to high level, or first bit "1" of op-code of next instruction is given to the part. Except when the device is in the status output mode or outputs data, the DO pin is in the high impedance state. „ Type of Products Model AK6416AM Memory size 16Kbits Temp.Range -40°C~85°C Vcc 1.8V~5.5V Package 8pin Plastic SSOP DAS02E-00 -2- 1999/05 ASAHI KASEI Pin arrangement [AK6416A] „ Pin Function Pin No. Pin name RESET RDY/BUSY Note I Input pin O Output pin

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ASAHI KASEI
[AK6416A]

AK6416A
16Kbit Serial CMOS EEPROM
† ADVANCED CMOS EEPROM TECHNOLOGY
† READ/WRITE NON-VOLATILE MEMORY - Wide Vcc 1.8V ~ 5.5V operation - 16384 bits 1024 16 organization
† ONE CHIP MICROCOMPUTER INTERFACE - Interface with one chip microcomputer's serial communication port directly
† LOW POWER CONSUMPTION - 0.8µA Max Standby mode
† HIGH RELIABILITY
-Endurance
100K cycles
-Data Retention
10 years
† SPECIAL FEATURES - High speed operation fMAX=4MHz Vcc=4.5V ~ 5.5V - Automatic write cycle time-out with auto-ERASE - Automatic address increment READ - Ready/Busy status signal - Software and Hardware controlled write protection
† IDEAL FOR LOW DENSITY DATA STORAGE - Low cost, space saving, 8-pin package SSOP

DAS02E-00

Block diagram
1999/05

ASAHI KASEI
[AK6416A]

General Description The AK6416A is a 16384bit, serial, read/write, non-volatile memory device fabricated using an advanced CMOS EEPROM technology. The AK6416A has 16384bits of memory organized into 1024 registers of 16 bits each. The AK6416A 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 AK6416A can connect to the serial communication port of popular one chip microcomputer directly 3 line negative clock synchronous interface . At write operation, AK6416A 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, AK6416A takes out the read data from a register to data output pin DO synchronously with falling edge of SK. The AK6416A has 4 instructions such as READ, WRITE, WREN write enable and WRDS write disable . Each instruction is organized by op-code block 8bits , address block 8bits and data 8bits When input level of SK pin is high level and input level of chip select CS pin is changed from high level to low level, AK6416A can receive the instructions. Special features of the AK6416A include automatic write time-out with auto-ERASE, Ready/Busy status signal output and ultra-low standby power mode when deselected CS=high .
• Software and Hardware controlled write protection The AK6416A has 2 hardware and software write protection functions. After power on or after execution of WRDS write disable instruction, execution of WRITE instruction will be disabled. This write protection condition continues until WREN instruction is executed or Vcc is removed from the part. Execution of READ instruction is independent of both WREN and WRDS instructions. Reset pin should be low level when WRITE instruction is executed. When the Reset pin is high level, the WRITE instruction is not executed.
• Ready/Busy status signal During the automatic write time-out period BUSY status , the AK6416A can't accept the other instructions. The AK6416A has 2 functions to know the Busy status from exterior. The RDY/BUSY pin indicates the Busy status regardless of the CS pin status. The RDY/BUSY pin outputs the low level regardless of the CS pin status during Busy status. Except the above status, this pin outputs high level. Also the DO pin indicates the Busy status. When input level of SK pin is low level and input level of CS pin is changed from high level to low level, the AK6416A is in the status output mode and the DO pin indicates the Ready/Busy status. The Ready/Busy status outputs on DO pin until CS pin is changed from low level to high level, or first bit "1" of op-code of next instruction is given to the part. Except when the device is in the status output mode or outputs data, the DO pin is in the high impedance state.
„ Type of Products

Model AK6416AM

Memory size 16Kbits

Temp.Range -40°C~85°C

Vcc 1.8V~5.5V

Package 8pin Plastic SSOP

DAS02E-00 -2-
1999/05

ASAHI KASEI

Pin arrangement
[AK6416A]
„ Pin Function

Pin No.

Pin name

RESET

RDY/BUSY

Note I Input pin

O Output pin

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Datasheet ID: AK6416AM 515914