HD6433308 Datasheet, PDF (280/349 Pages) Hitachi Semiconductor – Hitachi Single-Chip MicroComputer

Table 17-3. Allowable Output Current Sink Values
Conditions: VCC = AVCC = 5.0V ±10%, VSS = AVSS = 0V, Ta = –20 to 75˚C (regular specifications)
Ta = –40 to 85˚C (wide-range specifications)
Item
Symbol min
typ max
Unit
Allowable output Low Ports 1 and 2
IOL
–
–
10
mA
current sink (per pin) Other output pins
–
–
2.0
mA
Allowable output Low Ports 1 and 2, total ΣIOL
–
–
80
mA
current sink (total)
All output pins
–
–
120
mA
Allowable output High All output pins
–IOH
–
–
2.0
mA
current sink (per pin)
Allowable output High Total of all output Σ–IOH –
–
40
mA
current sink (total)
Note: To avoid degrading the reliability of the chip, be careful not to exceed the output current
sink values in table 17-3. 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 17-1 and 17-2.
H8/330
Port
2 kΩ
Darlington
pair
Figure 17-1. Example of Circuit for Driving a Darlington Pair
H8/330
Vcc
600 Ω
Port 1 or 2
LED
Figure 17-2. Example of Circuit for Driving a LED
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