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Table 19.3
Permissible Output Currents
Conditions: V
CC
= 2.7 V to 5.5 V, AV
CC
= 2.7 V to 5.5 V, V
REF
= 2.7 V to AV
CC
,
V
SS
= AV
SS
= 0 V, T
a
= –20°C to +75°C (regular specifications),
T
a
= –40°C to +85°C (wide-range specifications)
Item
Symbol
Min
Typ
Max
Unit
Permissible output
low current (per pin)
A
19
to A
0
Other output pins
I
OL
—
—
—
—
10
2.0
mA
mA
Permissible output
low current (total)
Total of 20 pins in
A
19
to A
0
Σ
I
OL
—
—
80
mA
Total of all output pins,
including the above
—
—
120
mA
Permissible output
high current (per pin)
All output pins
|–I
OH
|
—
—
2.0
mA
Permissible output
high current (total)
Total of all output pins
|
–
Σ
I
OH
|
—
—
40
mA
Notes: 1. To protect chip reliability, do not exceed the output current values in table 19.3.
2. When directly driving a darlington pair or LED, always insert a current-limiting resistor in
the output line, as shown in figure 19.1.
H8/3008
Port
2 k
Ω
Darlington pair
Figure 19.1 Darlington Pair Drive Circuit (Example)
Содержание H8/3008
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