RL78/G1P
CHAPTER 27 ELECTRICAL SPECIFICATIONS
R01UH0895EJ0100 Rev.1.00
723
Nov 29, 2019
27.3 DC Characteristics
27.3.1 Pin characteristics
(T
A
=
40 to +85
C, 2.7 V
V
DD
3.6 V, V
SS
= 0 V) (1/3)
Items Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Output current, high
Note 1
I
OH1
Per pin for P10 to P17, P30 to P35, P40
2.0
Note 2
mA
Total of P10 to P17, P30 to P35
(When duty
≤
70%
Note 3
)
19.0
mA
Total of all pins
(When duty
≤
70%
Note 3
)
21.0
mA
I
OH2
Per pin for P20 to P27
0.1
mA
Total of all pins
(When duty
≤
70%
Note 3
)
0.8
mA
Notes 1
. Value of current at which the device operation is guaranteed even if the current flows from the V
DD
pin to an
output pin.
2.
Do not exceed the total current value.
3.
Specification under conditions where the duty factor
≤
70%.
The output current value that has changed to the duty factor > 70% the duty ratio can be calculated with the
following expression (when changing the duty factor from 70% to n%).
Total output current of pins = (I
OH
× 0.7)/(n × 0.01)
<Example> Where n = 80% and I
OH
=
19.0 mA
Total output current of pins = (
19.0 × 0.7)/(80 × 0.01) =
16.625 mA
However, the current that is allowed to flow into one pin does not vary depending on the duty factor. A
current higher than the absolute maximum rating must not flow into one pin.
Remark
Unless specified otherwise, the characteristics of alternate-function pins are the same as those of the port
pins.