Manuals / NEC / Computer Equipment / Personal Computer

NEC PD75P308 user manual Electrical Specifications, Absolute Maximum Ratings Ta = 25C

Models: PD75P308

1 34

Download 34 pages 13.74 Kb

Page 15

μPD75P308

4.ELECTRICAL SPECIFICATIONS

ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)

Parameter	Symbol	Conditions				Rating	Unit

Supply Voltage	VDD					-0.3 to +7.0	V

Supply Voltage	VPP					-0.3 to +13.5	V

Input Voltage	VI1	Other than ports 4 or 5				-0.3 to VDD+0.3	V
Input Voltage
	VI2*1	Ports 4 and 5			Open-drain	-0.3 to +11	V

Output Voltage	VO					-0.3 to VDD+0.3	V

High-Level Output Current		1 Pin				-15	mA
	IOH
	IOH	All pins				-30	mA
		All pins				-30	mA

		One pin			Peak value	30	mA

					Effective value	15	mA
					Effective value	15	mA

Low-Level Output Current	IOH*2	Total of ports 0, 2, 3, 5			Peak value	100	mA

					Effective value	60	mA
					Effective value	60	mA

					Peak value	100	mA
		Total of ports 4, 6, 7
		Total of ports 4, 6, 7			Effective value	60	mA
					Effective value	60	mA

Operating Temperature	Topt					-10 to +70	°C

Storage Temperature	Tstg					-65 to +150	°C

*1: The impedance of the power source (pull-up resistor) must be 50 KΩ minimum when a voltage higher than 10V is applied to ports 4 and 5.

2:Effective value = Peak value x √Duty

15

Image 15

NEC PD75P308 user manual Electrical Specifications, Absolute Maximum Ratings Ta = 25C

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