PIN Functions, Port Pins | NEC PD75P308 manual

μPD75P308

1. PIN FUNCTIONS

1.1 PORT PINS

		Also Served									Input/
Pin Name	Input/Output	Also Served					Function	8-Bit I/O	When Reset		Output
		As									Circuit
											TYPE*1
P00	Input		INT4			4-bit input port (PORT0)					B


P01	Input/Output		SCK								F -A
P01	Input/Output		SCK			Pull-up resistors can be specified in 3-bit		X	Input		F -A
						Pull-up resistors can be specified in 3-bit		X	Input
P02	Input/Output	SO/SB0				units for the P01 to P03 pins by software.					F -B

P03	Input/Output	SI/SBI									M -C

P10			INT0				With noise elimination function

P11	Input		INT1			4-bit input port (PORT1)		X	Input		B -C
P12	Input		INT2			Internal pull-up resistors can be		X	Input		B -C
						Internal pull-up resistors can be
						specified in 4-bit units by software.

P13			TI0
P13			TI0

P20		PTO0
						4-bit input/output port (PORT2)
P21	Input/Output		—			4-bit input/output port (PORT2)
P21			—			Internal pull-up resistors can be		X	Input		E-B
P22			PCL			Internal pull-up resistors can be		X	Input		E-B
P22			PCL			specified in 4-bit units by software.
P23			BUZ
P30*2		LCDCL		MD0		Programmable 4-bit input/output port
						(PORT3)
		SYNC		MD1		(PORT3)
P31*2	Input/Output	SYNC		MD1		This port can be specified for input/output		X	Input		E-B
P32*2	Input/Output		MD2			in bit units.		X	Input		E-B
						in bit units.
						Internal pull-up resistors can be
P33*2			MD3			specified in 4-bit units by software.
						N-ch open-drain 4-bit input/output port
						(PORT4)
P40-43*2	Input/Output		—			Data input/output pin for writing and			High impedance		M-A
						verifying of program memory (PROM)
						(lower 4 bits)		●
						N-ch open-drain 4-bit input/output port		●
						N-ch open-drain 4-bit input/output port
						(PORT5)
P50-P53*2	Input/Output		—			Data input/output pin for writing and			High impedance		M-A
						verifying of program memory (PROM)
						(upper 4 bits)
P60			KR0			Programmable 4-bit input/output port
						(PORT6)
P61			KR1			(PORT6)
P61	Input/Output		KR1			This port can be specified for input/output			Input		F -A
						This port can be specified for input/output
P62			KR2			in bit units.
						in bit units.
						Internal pull-up resistors can be specified

P63			KR3
P63			KR3			in 4-bit units by software.		●

P70			KR4
P70			KR4
						4-bit input/output port (PORT7)
P71	Input/Output		KR5			4-bit input/output port (PORT7)
						Internal pull-up resistors can be			Input		F -A
P72			KR6			Internal pull-up resistors can be			Input		F -A
P72			KR6			specified in 4-bit units by software.
						specified in 4-bit units by software.
P73			KR7

BP0			S24

BP1	Output		S25

BP2			S26
BP2			S26

BP3			S27			1-bit output port (BIT PORT)		X	*3		G-C
						1-bit output port (BIT PORT)
BP4			S28			Shared with a segment output pin.
BP4			S28			Shared with a segment output pin.

BP5	Output		S29


BP6			S30
BP6			S30

BP7			S31

*1: Circles indicate schmitt trigger inputs.

2:Can directly drive LED.

3:For BP0-7, VLC1 indicated below are selected as the input source.

However, the output level is changed depending on BP0-7 and the VLC1 external circuits.

★

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NEC PD75P308 user manual PIN Functions, Port Pins

Contents

Description FeaturesOrdering Information Quality Grade ΜPD75P308 PIN Configuration Block Diagram Contents PIN Functions Port Pins NON 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 pin Eprom Differences Between μPD75P308 and μPD75308 +12.5 Write mode Verify mode Program inhibit mode Or H Program memory address 0 clear modeWriting and Verifying Prom Program Memory Operation Modes for WRITING/VERIFYING Program Memory VDD+1 Program Memory Write Procedure Program Memory Read Procedure Erasure μPD75P308K only Absolute Maximum Ratings Ta = 25C Electrical Specifications Ta = -10 to +70C, VDD = 5 to ±5 Main System Clock Oscillator Circuit CharacteristicsRecommended Oscillation Circuit Constants Main System Clock Ceramic Oscillator Ta = -10 to +70C Capacitance 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 master TI0 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 Mode Command Signal Transfer Serial Transfer Timing BUS Release Signal TransferReset Input Timing Interrupt Input Timing BTM3 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 Drawings Millimeters Inches PIN Ceramic Wqfn VPS Recommended Soldering ConditionsΜPD75P308GF-3B9 80-pin plastic QFP 14 x 20 mm Prom writing tools Appendix A. Development Tools Appendix B. Related Documents Static Electricity ALL MOS Devices Processing of Unused Pins Cmos Devices onlyStatus Before Initialization ALL MOS Devices Fix the input level of Cmos devices Memo