
Table 20-5 Allowable Output Current Values 
(5-V Versions)
– Preliminary for S-Mask Versions–
Conditions: V
CC
 = 5.0 V ±10%, AV
CC
 = 5.0 V ±10%, V
SS
 = AV
SS
 = 0 V, 
T
a
 = –20 to +75C (Regular Specifications)
T
a
 = –40 to +85C (Wide-Range Specifications)
Item
Allowable output 
Low current (per pin)
Symbol
I
OL
Min
–
–
–
–
–
–
Typ
–
–
–
–
–
–
Max
10
3.0
2.0
40
80
2.0
Unit
mA
mA
mA
mA
mA
mA
Port 4
RES
Other output pins
Port 4, total of 8 pins
Total of all output pins
All output pins
Σ
 I
OL
Allowable output 
High current (per pin)
Allowable output 
High current (total)
–I
OH
Total of all output 
pins
Σ
 –I
OH
–
–
25
mA
Table 20-6   Allowable Output Current Values (3-V S-Mask Versions) 
–Preliminary–
Conditions: V
CC
 = 3.0 to 5.5 V, V
SS
 = AV
SS
 = 0 V, T
a
 = –20 to +75C (Regular Specifications), 
AV
CC
 = 3.0 to 5.5 V
*1
Item
Allowable output 
Low current (per pin)
Symbol
I
OL
Min
–
–
–
–
–
–
Typ
–
–
–
–
–
–
Max
10
3.0
2.0
40
80
2.0
Unit
mA
mA
mA
mA
mA
mA
Port 4
RES
Other output pins
Port 4, total of 8 pins
Total of all output pins
All output pins
Σ 
I
OL
Allowable output 
High current (per pin)
Allowable output 
High current (total)
Note:
 *
1 To avoid degrading the reliability of the chip, be careful not to exceed the output current 
sink values in table 20-5.  In particular, when driving a Darlington transistor pair or LED 
directly, be sure to insert a current-limiting resistor in the output path.  See figures 20-1 
and 20-2.
–I
OH
Total of all output pins
Σ
 –I
OH
–
–
25
mA
Allowable output 
Low current (total)
Allowable output 
Low current (total)
338