Figure 22.1 Darlington Pair Drive Circuit (Example); Table 22.3 Permissible Output Currents - Renesas H8S/2111B Hardware Manual

Table 22.3 Permissible Output Currents

Conditions: V
CC
Item
Permissible SCL1, SCL0,
output SDA1, SDA0,
low current PS2AC to PS2CC,
(per pin) PS2AD to PS2CD,
PA7 to PA4,
ExSDAA, ExSCLA,
ExSDAB, ExSCLB
(bus drive function
selected)
Ports 1, 2, 3
RESO
Other output pins
Permissible Total of ports 1, 2,
output and 3
low current
Total of all output
(total)
pins, including the
above
Permissible All output pins
output
high current
(per pin)
Permissible Total of all output
output pins
high current
(total)
Notes: 1. To protect chip reliability, do not exceed the output current values in table 22.3.
2. When driving a Darlington pair or LED, always insert a current-limiting resistor in the
output line, as show in figures 22.1 and 22.2.

Figure 22.1 Darlington Pair Drive Circuit (Example)

Rev. 1.00, 05/04, page 518 of 544
= 3.0 V to 3.6 V, V
CC
Symbol
I
OL
∑ I
OL
–I
OH
∑ –I
OH
This LSI
Port
B = 3.0 V to 5.5 V, V
Min. Typ.
— —
— —
— —
— —
— —
— —
— —
— —
2 kΩ
Darlington pair
= 0 V, T = –20 to +75°C
SS a
Max. Unit
10 mA
2
1
1
40 mA
60
2 mA
30 mA