HD6473258CP10 Datasheet, PDF (243/301 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

Table 15-4. Allowable Output Current Sink Values
Conditions: VCC = 5.0V ±10%, VSS = 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 15-4. In particular, when driving a Darlington pair or LED directly, be sure to
insert a current-limiting resistor in the output path. See figures 17-1 and 17-2.
H8/325
series
Port
2 kΩ
Darlington
pair
Figure 15-1. Example of Circuit for Driving a Darlington Pair
H8/325
series
Port 1 or 2
Vcc
Fig. 15-1
600 Ω
LED
Figure 15-2. Example of Circuit for Driving a LED
240