HD64F3437TF16 Datasheet, PDF (595/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

Table 23.6 Allowable Output Current Values (3-V Version)
Conditions: V_CC = 2.7 V to 5.5 V*, V_CCB = 2.7 V to 5.5 V*, AV_CC = 2.7 V to 5.5 V*, AV_ref = 2.7
V to AV_CC, V_SS = AV_SS = 0 V, Ta = –20˚C to +75˚C
Item
Symbol Min Typ Max Unit
Allowable output low
current (per pin)
SCL, SDA, PA₄ to PA₇ I_OL
(bus drive selection)
—
—
10
mA
Ports 1 and 2
—
—
2
RESO
—
—
1
Other output pins
—
—
1
Allowable output low
Ports 1 and 2, total
ΣI_OL
current (total)
Total of all output
—
—
40
mA
—
—
60
Allowable output high
current (per pin)
All output pins
–I _OH
—
—
2
mA
Allowable output high Total of all output
Σ–I_OH
—
—
30
mA
current (total)
Note:
To avoid degrading the reliability of the chip, be careful not to exceed the output current
values in tables 23.5 and 23.6. 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 23.1 and
23.2.
* In the F-ZTAT LH version, V_CC = 3.0 V to 5.5 V, V_CCB = 3.0 V to 5.5 V, AV_CC = 3.0 V to
5.5 V.
H8/3437
Port
2 kΩ
Darlington
transistor
Figure 23.1 Example of Circuit for Driving a Darlington Transistor (5-V Version)
566