HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 350

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Table 20-7 Allowable Output Current Values (2.7-V S-Mask Versions)
Conditions: V
Item
Allowable output
Low current (per pin)
Allowable output
Low current (total)
Allowable output
High current (per pin)
Allowable output
High current (total)
Note: *1 To avoid degrading the reliability of the chip, be careful not to exceed the output current
The S-mask versions (high-speed and low-voltage versions) are identical to the existing R-mask
versions functionally and in their pin arrangement. Due to the higher-speed design, however, there
are differences in the fabrication process, which lead to some differences in electrical
specifications, operating margin, noise margin, and other characteristics. These differences should
be noted during board design, and when switching from an R-mask to an S-mask version.
Figure 20-1 Example of Circuit for Driving a
H8/534
H8/536
sink values in table 20-5. 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 20-1
and 20-2.
AV
Darlington Transistor Pair
Port
CC
CC
= 2.7 to 5.5 V, V
= 2.7 to 5.5 V
2 k
Port 4
RES
Other output pins
Port 4, total of 8 pins
Total of all output pins
All output pins
Total of all output pins
Darlington pair
*1
SS
= AV
SS
= 0 V, T
339
Symbol
I
–I
OL
Figure 20-2 Example of Circuit for Driving
I
OH
–I
OL
a
OH
= –20 to +75˚C (Regular Specifications),
H8/534
H8/536
Min
–
–
–
–
–
–
–
an LED
Port 4
Typ
–
–
–
–
–
–
–
LED
Max
10
3.0
2.0
40
80
2.0
25
–Preliminary–
–Preliminary–
V
600
CC
Unit
mA
mA
mA
mA
mA
mA
mA