Datasheet

Section 25 Electrical Characteristics
Rev. 4.00 Jun 06, 2006 page 743 of 1004
REJ09B0301-0400
Table 25.17 Permissible Output Currents
Conditions: V
CC
= 4.0 V to 5.5 V, V
SS
= 0 V, Ta = –20 to +75°C (regular specifications),
T
a
= –40 to +85°C (wide-range specifications)
Item Symbol Min Typ Max Unit
Permissible output
low current (per pin)
SCL1, SCL0, SDA1,
SDA0
I
OL
——20 mA
Ports 1 to 3 ——10 mA
Other output pins ——2mA
Total of ports 1 to 3 ∑ I
OL
——80 mAPermissible output
low current (total)
Total of all output pins,
including the above
——120 mA
Permissible output
high current (per pin)
All output pins –I
OH
——2mA
Permissible output
high current (total)
Total of all output pins ∑ –I
OH
——40 mA
Conditions: V
CC
= 2.7 V to 3.6 V, V
SS
= 0 V, T
a
= –20 to +75°C
Item Symbol Min Typ Max Unit
Permissible output
low current (per pin)
SCL1, SCL0, SDA1,
SDA0
I
OL
——10 mA
Ports 1 to 3 ——2mA
Other output pins ——1mA
Total of ports 1 to 3 ∑ I
OL
——40 mAPermissible output
low current (total)
Total of all output pins,
including the above
——60 mA
Permissible output
high current (per pin)
All output pins –I
OH
——2mA
Permissible output
high current (total)
Total of all output pins ∑ –I
OH
——30 mA
Notes: 1. To protect chip reliability, do not exceed the output current values in table 25.17.
2. When driving a Darlington pair or LED, always insert a current-limiting resistor in the
output line, as show in figures 25.1 and 25.2.