AK93C55A资料

元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]AK93C45A / 55A / 65A / 75A1K / 2K / 4K / 8Kbit Serial CMOS EEPROMFeatures󰀁󰀁󰀁󰀁󰀁󰀁󰀁󰀁󰀁󰀁󰀁󰀁ADVANCED CMOS EEPROM TECHNOLOGYREAD/WRITE NON-VOLATILE MEMORYWIDE VCC OPERATION 󰀁 Vcc = 1.8V 󰀂 5.5VAK93C45A 󰀁 󰀁 󰀁 1024 bits, 64 󰀃 16 organizationAK93C55A 󰀁 󰀁 󰀁 2048 bits, 128 󰀃 16 organizationAK93C65A 󰀁 󰀁 󰀁 4096 bits, 256 󰀃 16 organizationAK93C75A 󰀁 󰀁 󰀁 8192 bits, 512 󰀃 16 organizationSERIAL INTERFACE- Interfaces with popular microcontrollers and standard microprocessorsLOW POWER CONSUMPTION- 0.5mA max. Read Operation- 0.8󰀁A Max. StandbyHIGH RELIABILITY-Endurance: 100K cycles-Data Retention: 10 yearsAutomatic address increment (READ)Automatic write cycle time-out with auto-ERASEBusy/Ready status signalSoftware controlled write protectionIDEAL FOR LOW DENSITY DATA STORAGE- Low cost, space saving, 8-pin packageBlock DiagramDAM01E-01- 1 -1999/10元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]General DescriptionThe AK93C45A/55A/65A/75A is a 1024/2048/4096/8192-bit serial CMOS EEPROM divided into64/128/256/512 registers of 16 bits each.The AK93C45A/55A/65A/75A has 4 instructions such as READ, WRITE, EWEN and EWDS. Thoseinstructions control the AK93C45A/55A/65A/75A.The AK93C45A/55A/65A/75A 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.A serial interface of AK93C45A/55A/65A/75A, 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.AK93C45A/55A/65A/75A takes in the write data from data input pin (DI) to a register synchronously with risingedge of input pulse of serial clock pin (SK). And at read operation, AK93C45A/55A/65A/75A takes out theread 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 Busy/Readysignal output.󰀁 Software and Hardware controlled write protectionWhen Vcc is applied to the part, the part automatically powers up in the ERASE/WRITE Disable state. In theERASE/WRITE disable state, execution of WRITE instruction is disabled. Before WRITE instruction isexecuted, EWEN instruction must be executed. The ERASE/WRITE enable state continues until EWDSinstruction is executed or Vcc is removed from the part.Execution of a read instruction is independent of both EWEN and EWDS instructions.The PE is internally pulled up to VCC. If the PE is left unconnected, the part will accept WRITE, EWEN andEWDS instructions. 󰀁 󰀁 AK93C55A/65A󰀁 Busy/Ready status signalAfter a write instruction, the DO output serves as a Busy/Ready status indicator. After the falling edge of theCS initiates the self-timed programming cycle, the DO indicates the Busy/Ready status of the chip if the CS isbrought high after a minimum of 250ns (Tcs). DO=logical \"0\" indicates that programming is still in progress.DO=logical \"1\" indicates that the register at the address specified in the instruction has been written with thenew data pattern contained in the instruction and the part is ready for a next instruction.The Busy/Ready status indicator is only valid when CS is active (high). When CS is low, the DO output goesinto a high impedance state.The Busy/Ready signal outputs until a start bit (Logic\"1\") of the next instruction is given to the part.DAM01E-01- 2 -1999/10元器件交易网www.cecb2b.comASAHI KASEI󰀁 Type of ProductsModelAK93C45AFAK93C45ANFAK93C45AVAK93C55AFAK93C55ANFAK93C55AVAK93C65AFAK93C65ANFAK93C65AVAK93C75AFAK93C75ANFAK93C75AVMemory size1KbitsTemp.Range-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁C-40󰀁C󰀂85󰀁CVcc1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5V1.8V󰀂5.5VPackage8pin Plastic SOP8pin Plastic SOP8pin Plastic TSSOP8pin Plastic SOP8pin Plastic SOP8pin Plastic TSSOP8pin Plastic SOP8pin Plastic SOP8pin Plastic TSSOP8pin Plastic SOP8pin Plastic SOP8pin Plastic TSSOP[AK93C45A/55A/65A/75A]2Kbits4Kbits8KbitsDAM01E-01- 3 -1999/10元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]Pin arrangement Pin Name CS SK DI DO GND PE Vcc NC Function Chip Select Serial Data Clock Serial Data Input Serial Data Output Ground Program Enable Power Supply Not Connected(note) The PE is internally pulled up to VCC ( R = typ.2.5M󰀃, VCC=5V ).DAM01E-01- 4 -1999/10元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]Functional DescriptionThe AK93C45A/55A/65A/75A has 4 instructions such as READ, WRITE, EWEN and EWDS. A validinstruction consists of a Start Bit (Logic\"1\"), the appropriate Op Code and the desired memory Addresslocation.The CS pin must be brought low for a minimum of 250ns (Tcs) between each instruction when the instructionis continuously executed.Instruction READ WRITE EWEN EWDS WRALStartBit 1 1 1 1 1OpCode 10 01 00 00 00Address A5-A0 A5-A0 11XXXX 00XXXX 01XXXXData D15-D0 D15-D0Comments Reads data stored in memory, at specified address. Writes register. Write enable must precede all programming modes. Disables all programming instructions. D15-D0 Writes all registers.X: Don't caretable 1. Instruction Set for the AK93C45AAddressData D15-D0 D15-D0CommentsInstruction READ WRITE EWEN EWDS WRALStartBit 1 1 1 1 1OpCode 10 01 00 00 00 X A6-A0 X A6-A0 11XXXXXX 00XXXXXX 01XXXXXX Reads data stored in memory, at specified address. Writes register. Write enable must precede all programming modes. Disables all programming instructions. D15-D0 Writes all registers.X: Don't caretable 2. Instruction Set for the AK93C55AAddressData D15-D0 D15-D0CommentsInstruction READ WRITE EWEN EWDS WRALStartBit 1 1 1 1 1OpCode 10 01 00 00 00 A7-A0 A7-A0 11XXXXXX 00XXXXXX 01XXXXXX Reads data stored in memory, at specified address. Writes register. Write enable must precede all programming modes. Disables all programming instructions. D15-D0 Writes all registers.X: Don't caretable 3. Instruction Set for the AK93C65AAddressDataCommentsInstruction READ WRITE EWEN EWDS WRALStartBit 1 1 1 1 1OpCode 10 01 00 00 00 XA8-A0 D15-D0 XA8-A0 D15-D0 11XXXXXXXX 00XXXXXXXX 01XXXXXXXX D15-D0 Reads data stored in memory, at specified address. Writes register. Write enable must precede all programming modes. Disables all programming instructions. Writes all registers.X: Don't caretable 4. Instruction Set for the AK93C75A (Note) The WRAL instruction are used for factory function test only.User can't use the WRAL instruction.󰀁The AK93C45A/55A/65A/75A perceives the start bit in the logic\"1\" and also \"01\".󰀁DAM01E-01- 5 -1999/10元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]WriteThe write instruction is followed by 16 bits of data to be written into the specified address. After the last bit ofdata is put on the DI pin, the CS pin must be brought low before the next rising edge of the SK clock. Thisfalling edge of the CS initiates the self-timed programming cycle. The DO indicates the Busy/Ready status ofthe chip if the CS is brought high after a minimum of 250ns (Tcs). DO=logical \"0\" indicates that programmingis still in progress. DO=logical \"1\" indicates that the register at the address specified in the instruction hasbeen written with the new data pattern contained in the instruction and the part is ready for a next instruction.DAM01E-01- 6 -1999/10元器件交易网www.cecb2b.com

ASAHI KASEI

[AK93C45A/55A/65A/75A]

Read

The read instruction is the only instruction which outputs serial data on the DO pin.

Following the Start bit, first Op code and address are decoded, then the data from the selected memorylocation is available at the DO pin. A dummy bit (logical \"0\") precedes the 16-bit data from the selectedmemory location. The output data changes are synchronized with the rising edges of the serial clock (SK).The data in the next address can be read sequentially by continuing to provide clock. The addressautomatically cycles to the next higher address after the 16bit data shifted out.

When the highest address is reached, the address counter rolls over to address $00 or $000 allowing the readcycle to be continued indefinitely.

DAM01E-01

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元器件交易网www.cecb2b.com

ASAHI KASEI

[AK93C45A/55A/65A/75A]

EWEN / EWDS

When Vcc is applied to the part, the part automatically powers up in the ERASE/WRITE Disable state. In theERASE/WRITE disable state, execution of WRITE instruction is disable. Before WRITE instruction isexecuted, EWEN instruction must be executed. The ERASE/WRITE enable state continues until EWDSinstruction is executed or Vcc is removed from the part.

Execution of a read instruction is independent of both EWEN and EWDS instructions.

DAM01E-01

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元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]Absolute Maximum RatingsParameter Power Supply All Input Voltages with Respect to Ground Ambient storage temperatureSymbolVCCVIOTstMin-0.6-0.6-65Max+7.0VCC+0.6+150UnitVV󰀁CStress above those listed under \"Absolute Maximum Ratings\" may cause permanentdamage to the device. This is a stress rating only and functional operation of the device atthese or any other conditions above those indicated in the operational sections of thespecification is not implied. Exposure to absolute maximum conditions for extendedperiods may affect device reliability.Recommended Operating ConditionParameter Power Supply Ambient Operating TemperatureSymbolVCCTaMin1.8-40Max5.5+85UnitV󰀁CDAM01E-01- 9 -1999/10元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]Electrical Characteristics (1) D.C. ELECTRICAL CHARACTERISTICS󰀁 AK93C45A/55A/65A( 1.8V󰀄Vcc󰀄5.5V, -40󰀁C󰀄Ta󰀄85󰀁C, unless otherwise specified )ParameterCurrent Dissipation (WRITE)Current Dissipation(READ,EWEN,EWDS)ICC3ICC4ICC5ICCSBSymbolICC1ICC2ConditionVCC=5.5V, tSKP=1us, *1 93C45AVCC=1.8V,tSK=4us,*1 93C55A/65AVCC=5.5V, tSKP=1us, *1VCC=2.5V, tSKP=2us, *1VCC=1.8V, tSKP=4us, *1VCC=5.5V *2VCC=5V󰀁10%2.5V󰀄VCC󰀄5.5V1.8V󰀄VCC<2.5VVCC=5V󰀁10%2.5V󰀄VCC󰀄5.5V1.8V󰀄VCC<2.5VVCC=5V󰀁10%IOH=-0.4mA2.5V󰀄VCC󰀄5.5VIOH=-0.1mA1.8V󰀄VCC<2.5VIOH=-0.1mAVCC=5V󰀁10%IOL=2.1mA2.5V󰀄VCC󰀄5.5VIOL=1.0mA1.8V󰀄VCC<2.5VIOL=0.1mAVCC=5.5V,VIN=5.5V *3VCC=5.5VVOUT=5.5V,CS=GND2.00.8 󰀂 VCC0.8 󰀂 VCC-0.1-0.1-0.12.20.8 󰀂 VCC0.8 󰀂 VCC0.40.40.4󰀁1.0󰀁1.0Min.Max.4.01.52.00.50.20.10.8VCC+0.5VCC+0.5VCC+0.50.80.15 󰀂 VCC0.2 󰀂 VCCUnitmAmAmAmAmAmAuAVVVVVVVVVVVVuAuACurrent Dissipation (Standby)Input High VoltageVIH1VIH2VIH3Input Low VoltageVIL1VIL2VIL3Output High VoltageVOH1VOH2VOH3Output Low VoltageVOL1VOL2VOL3Input LeakageOutput LeakageILIILO*1:VIN=VIH/VIL,DO=Open*2:VIN=VCC/GND,CS=GND,DO=Open*3:CS, SK, DI pinDAM01E-01- 10 -1999/10元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]󰀁 AK93C75A( 1.8V󰀄Vcc󰀄5.5V, -40󰀁C󰀄Ta󰀄85󰀁C, unless otherwise specified )ParameterSymbolConditionVCC=5.5V, tSKP=1us, VCC=1.8V, tSKP=4us, VCC=5.5V, tSKP=1us, VCC=1.8V, tSKP=4us, VCC=5.5V *4*4*4*4*50.8 󰀅 VCC-0.10.8 󰀅 VCC0.8 󰀅 VCC0.40.4󰀁1.0󰀁1.0Min.Max.4.02.00.40.10.8VCC+0.50.2 󰀅 VCCUnitmAmAmAmAuAVVVVVVuAuACurrent DissipationICC1(WRITE)ICC2Current DissipationICC3(READ,EWEN,EWDS)ICC4Current DissipationICCSB(Standby)Input High VoltageVIHInput Low VoltageVILOutput High VoltageVOH12.5V󰀄VCC󰀄5.5VIOH=-0.1mAVOH21.8V󰀄VCC<2.5VIOH=-0.1mAOutput Low VoltageVOL12.5V󰀄VCC󰀄5.5VIOL=1.0mAVOL21.8V󰀄VCC<2.5VIOL=0.1mAInput LeakageILIVCC=5.5V, VIN=5.5V *6Output LeakageILOVCC=5.5VVOUT=5.5V, CS=GND*4:VIN=VIH/VIL,DO=Open*5:VIN=VCC/GND,CS=GND,DO=Open*6:CS, SK, DI pinDAM01E-01- 11 -1999/10元器件交易网www.cecb2b.comASAHI KASEI(2) A.C. ELECTRICAL CHARACTERISTICS( 1.8V󰀄Vcc󰀄5.5V, -40󰀁C󰀄Ta󰀄85󰀁C, unless otherwise specified )ParameterSK Cycle TimeSymbolCondition4.5V󰀄VCC󰀄5.5V2.0V󰀄VCC<4.5V1.8V󰀄VCC<2.0V4.5V󰀄VCC󰀄5.5V2.0V󰀄VCC<4.5V1.8V󰀄VCC<2.0VMin.1.02.04.05001.02.010002002005001.02.010810250CL=100pF2.0V󰀄VCC󰀄5.5V1.8V󰀄VCC<2.0V500100250Max.Unitusususnsususnsnsnsnsnsususmsmsmsnsnsnsns[AK93C45A/55A/65A/75A]tSKP1tSKP2tSKP3SK Pulse WidthtSKW1tSKW2tSKW3CS Setup TimetCSSCS Hold TimetCSHData Setup TimetDISData Hold TimetDIHtPD1Output delay *7tPD2tPD3Selftimed ProgrammingtE/W1TimetE/W2tE/W3Min CS Low TimetCSCS to Status ValidtSVCS to Output High-ZtOZ1tOZ2*7:CL=100pF4.5V󰀄VCC󰀄5.5V2.0V󰀄VCC<4.5V1.8V󰀄VCC<2.0V93C45A/55A/65A4.5V󰀄VCC󰀄5.5V93C75A1.8V󰀄VCC<4.5VDAM01E-01- 12 -1999/10元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]Synchronous Data TimingThe Start of InstructionThe End of InstructionDAM01E-01- 13 -1999/10元器件交易网www.cecb2b.comASAHI KASEI[AK93C45A/55A/65A/75A]Busy/Ready Signal OutputDAM01E-01- 14 -1999/10元器件交易网www.cecb2b.com

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