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Table 21-11 Permissible Output Currents
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Conditions: V
= 2.7 V to 5.5 V, AV
CC
V
= AV
SS
T
= –40°C to +85°C (wide-range specifications)
a
Item
Permissible output
low current (per pin)
Permissible output
low current (total)
Permissible output
high current (per pin)
Permissible output
high current (total)
Notes: 1. To protect chip reliability, do not exceed the output current values in table 21-11.
2. When driving a darlington pair or LED, always insert a current-limiting resistor in the
output line, as shown in figures 21-4 and 21-5.
= 2.7 V to 5.5 V, V
CC
= 0 V, T
= –20°C to +75°C (regular specifications),
SS
a
Ports 1, 2, 5, and B
Other output pins
Total of 28 pins in
ports 1, 2, 5, and B
Total of all output pins,
including the above
All output pins
Total of all output pins
= 2.7 V to AV
REF
Symbol
Min
I
—
OL
—
ΣI
—
OL
—
I
—
OH
ΣI
—
OH
681
,
CC
Typ
Max
Unit
—
10
mA
—
2.0
mA
—
80
mA
—
120
mA
—
2.0
mA
—
40
mA
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