NEC PD78F9488 - Manual (Page 347)

CHAPTER 22 ELECTRICAL SPECIFICATIONS ( µ PD789488, 78F9488, 789489, 78F9489)
User’s Manual U15331EJ4V1UD
347
DC Characteristics (T
A
= –40 to +85 °C, V
DD
= 1.8 to 5.5 V) (2/6)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
I
LIH1
P00 to P07, P10, P11,
P20 to P25, P30 to P34,
P60 to P67,
P70 to P73
Note 1 , P80 to
P87 Note 1 , RESET
3 µ A
I
LIH2
V
I
= V
DD
X1, X2, XT1, XT2 20 µ A
Input leakage current,
high
I
LIH3
V
I
= 12 V P50 to P53
(N-ch open drain) 20 µ A
I
LIL1
P00 to P07, P10, P11,
P20 to P25, P30 to P34,
P60 to P67,
P70 to P73
Note 1 , P80 to
P87 Note 1 , RESET
–3 µ A
I
LIL2
X1, X2, XT1, XT2 –20 µ A
Input leakage current,
low
I
LIL3
V
I
= 0 V
P50 to P53
(N-ch open drain)
–3 Note 2
µ A
Output leakage current,
high I
LOH
V
O
= V
DD
3 µ A
Output leakage current,
low I
LOL
V
O
= 0 V –3 µ A
Software pull-up
resistor R
1
V
I
= 0 V P00 to P07, P10, P11,
P20 to P25, P30 to P34 50 100 200 k Ω
Mask option pull-up
resistor
Note 3
R
2
V
I
= 0 V P50 to P53 10 30 60 k Ω
Notes 1. Only when selected by a mask option or port function register
2. If there is no on-chip pull-up resistor for P50 to P53 (specified by a mask option) and if P50 to P53
have been set to input mode when a read instruction is executed to read from P50 to P53, a low-level
input leakage current of up to –60
µA flows during only one cycle. At all other times, the maximum
leakage current is –3 µA.
3. Mask ROM version only
Remark Unless otherwise specified, the characteristics of alternate-function pins are the same as those of port
pins.