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NEC PD75P308 Serial Transfer Timing THREE-LINE Serial I/O Mode, TWO-LINE Serial I/O Mode

Models: PD75P308

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μPD75P308

SERIAL TRANSFER TIMING

THREE-LINE SERIAL I/O MODE:

SCK

tKSO1

	tKCY1
tKL1	tKH1
tSIK1	tKSI1

Input data

Output data

TWO-LINE SERIAL I/O MODE:

SCK

tKSO

SB0,1

tKCY

tKL								tKH
tKL								tKH

tSIK tKSI

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NEC PD75P308 user manual Serial Transfer Timing THREE-LINE Serial I/O Mode, TWO-LINE Serial I/O Mode

Contents

Quality Grade FeaturesDescription Ordering InformationΜPD75P308 PIN ConfigurationBlock Diagram Contents PIN Functions Port PinsNON Port Pins Input buffer of Cmos standard Schmitt trigger input with hysteresis characteristicsPIN INPUT/OUTPUT Circuits IN/OUT SEG COMType F-B Type M-C Connect capacitor between VDD and P00/INT4, Reset pinEprom Differences Between μPD75P308 and μPD75308Operation Modes for WRITING/VERIFYING Program Memory Program memory address 0 clear mode+12.5 Write mode Verify mode Program inhibit mode Or H Writing and Verifying Prom Program MemoryVDD+1 Program Memory Write ProcedureProgram Memory Read Procedure Erasure μPD75P308K only Absolute Maximum Ratings Ta = 25C Electrical SpecificationsMain System Clock Ceramic Oscillator Ta = -10 to +70C Main System Clock Oscillator Circuit CharacteristicsTa = -10 to +70C, VDD = 5 to ±5 Recommended Oscillation Circuit ConstantsCapacitance Ta = 25C, VDD = 0 DC Characteristics Ta = -10 to +70C, VDD = 5V ±5% Operation Other Than Serial Transfer AC Characteristics Ta = -10 to + 70C, VDD = 5V ±5%Interrupt mode register IM0 Serial Transfer Operation SBI Mode SCK external clock output master SBI Mode SCK internal clock output masterTI0 Timing AC Timing Test Point excluding X1 and XT1 inputsClock Timing TWO-LINE Serial I/O Mode Serial Transfer Timing THREE-LINE Serial I/O ModeInterrupt Input Timing Serial Transfer Timing BUS Release Signal TransferCommand Signal Transfer Reset Input TimingBTM3 BTM2 BTM1 BTM0 Data Retention Timing releasing Stop mode by ResetTa = -10 to +70C Other than X1 or MD0 MD1 Program Memory Write TimingProgram Memory Read Timing PIN Plastic QFP 14×20 Package DrawingsMillimeters Inches PIN Ceramic WqfnVPS Recommended Soldering ConditionsΜPD75P308GF-3B9 80-pin plastic QFP 14 x 20 mm Prom writing tools Appendix A. Development ToolsAppendix B. Related Documents Fix the input level of Cmos devices Processing of Unused Pins Cmos Devices onlyStatic Electricity ALL MOS Devices Status Before Initialization ALL MOS DevicesMemo