Renesas H8S Series Hardware Manual page 761

Table 22-25 Permissible Output Currents
Conditions: V = 2.7 to 5.5 V, AV
CC
T = –20 to +75°C (regular specifications), T
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 22-25.
2. When driving a darlington pair or LED directly, always insert a current-limiting resistor in the output line, as show
in figures 22-65 and 22-66.
= 2.7 to 5.5 V, V
CC ref
Ports 1, A to C
Other output pins
Total of 32 pins
including ports 1
and A to C
Total of all output
pins, including the
above
All output pins
Total of all output
pins
The chip
Port
Figure 22-65 Darlington Pair Drive Circuit (Example)
The chip
Ports 1, A to C
Figure 22-66 LED Drive Circuit (Example)
= 2.7 to AV , V = AV
CC SS
= –40 to +85°C (wide-range specifications)
a
Symbol Min Typ
I — —
OL
— —
∑ I
— —
OL
— —
–I — —
OH
∑ –I
— —
OH
2 kΩ
Darlington Pair
600 Ω
LED
= 0 V,
SS
Max Unit
10 mA
2.0 mA
80 mA
120 mA
2.0 mA
40 mA
Rev.6.00 Oct.28.2004 page 733 of 1016
REJ09B0138-0600H