NEC PD75P308 user manual Program Memory Write Timing, Program Memory Read Timing, MD0 MD1

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μPD75P308

PROGRAM MEMORY WRITE TIMING

	VPP	tVPS
VPP	VPP
VPP	VDD
	VDD
	VDD+1	tVDS
VDD	VDD+1
VDD	VDD
	VDD
X1
P40-P43		Data input			Data
P50-P53		Data input		output
P50-P53	tI	tDS
		tDS	tOH	tDV	tDF
			tOH	tDV	tDF
MD0
		tPW	tM1R		tMOS
MD1
	tPCR	tM1S	tM1H
MD2
		tM3S
MD3

tXH

Data input	tXL	Data input

tDS	tDH	tAS
	tAH

tOPW

tM3H

PROGRAM MEMORY READ TIMING

		tVPS
VPP	VPP
VPP	VDD
	VDD
		tVDS
VDD	VDD+1
VDD	VDD	tXH
	VDD

X1		tXL	tDAD
		tXL	tDAD
P40-P43		tHAD
P40-P43		Data output	Data output
P50-P53		Data output	Data output
P50-P53		tDV
		tDV	tM3HR
		tI	tM3HR
MD0
MD1
		tPCR
MD2
		tM3SR
MD3

tDFR

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Image 27

Contents Quality Grade FeaturesDescription Ordering InformationΜPD75P308 PIN ConfigurationBlock Diagram Contents PIN Functions Port PinsNON Port Pins Schmitt trigger input with hysteresis characteristics PIN INPUT/OUTPUT CircuitsInput buffer of Cmos standard COM Type F-BIN/OUT SEG 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% AC Characteristics Ta = -10 to + 70C, VDD = 5V ±5% Interrupt mode register IM0Operation Other Than Serial Transfer Serial Transfer Operation SBI Mode SCK external clock output master SBI Mode SCK internal clock output masterAC Timing Test Point excluding X1 and XT1 inputs Clock TimingTI0 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 TimingData Retention Timing releasing Stop mode by Reset Ta = -10 to +70CBTM3 BTM2 BTM1 BTM0 Other than X1 or Program Memory Write Timing Program Memory Read TimingMD0 MD1 PIN Plastic QFP 14×20 Package DrawingsMillimeters Inches PIN Ceramic WqfnRecommended Soldering Conditions ΜPD75P308GF-3B9 80-pin plastic QFP 14 x 20 mmVPS 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