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UPD784020 Datasheet, PDF (63/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCOMPUTER
mPD784020, 784021
DC CHARACTERISTICS (TA = –40 to +85 °C, VDD = AVDD = 2.7 to 5.5 V, VSS = AVSS = 0 V) (1/2)
Parameter
Low-level input voltage
High-level input voltage
Low-level output voltage
High-level output voltage
X1 low-level input current
X1 high-level input current
Symbol
Conditions
Min.
Typ.
Max.
Unit
VIL1 Pins other than those described in
Notes 1, 2, 3, and 4
–0.3
0.3VDD
V
VIL2 Pins described in Notes 1, 2, 3, and 4
–0.3
0.2VDD
V
VIL3
VDD = +5.0 V ±10 %
–0.3
+0.8
V
Pins described in Notes 2, 3, and 4
VIH1 Pins other than those described in Note 1 0.7VDD
VDD + 0.3
V
VIH2 Pins described in Note 1
0.8VDD
VDD + 0.3
V
VIH3
VDD = +5.0 V ±10 %
2.2
VDD + 0.3
V
Pins described in Notes 2, 3, and 4
VOL1
IOL = 2 mA
0.4
V
VOL2 VDD = +5.0 V ±10 %
1.0
V
IOL = 8 mA
Pins described in Notes 2 and 5
VOH1 IOH = –2 mA
VDD – 1.0
V
VOH2 VDD = +5.0 V ±10 %
2.0
V
IOH = –5 mA
Pins described in Note 4
IIL
0 V £ VI £ VIL2
–30
mA
IIH
VIH2 £ VI £ VDD
+30
mA
Notes 1. X1, X2, RESET, P12/ASCK2/SCK2, P13/RxD2/SI2, P20/NMI, P21/INTP0, P22/INTP1, P23/INTP2/CI,
P24/INTP3, P25/INTP4/ASCK/SCK1, P26/INTP5, P27/SI0, P30/RxD/SI1, P32/SCK0, P33/SO0/SB0,
and TEST
2. AD0 to AD7 and A8 to A15
3. P60/A16 to P63/A19, RD, WR, P66/WAIT/HLDRQ, and P67/REFRQ/HLDAK
4. P00 to P07
5. P10 to P17
63