9
1.3.2
Pin Functions
Table 1.2 outlines the pin functions of the H8/3827R Series.
Table 1.2
Pin Functions
Pin No.
Type
Symbol
FP-80A
TFP-80C
FP-80B
I/O
Name and Functions
Power
source pins
V
CC
CV
CC
32
26
34
28
Input
Power supply: All V
CC
pins should be
connected to the system power supply.
See section 14, Power Supply Circuit.
V
SS
5
27
7
29
Input
Ground: All V
SS
pins should be
connected to the system power supply
(0 V).
AV
CC
73
75
Input
Analog power supply: This is the
power supply pin for the A/D converter.
When the A/D converter is not used,
connect this pin to the system power
supply.
AV
SS
2
4
Input
Analog ground: This is the A/D
converter ground pin. It should be
connected to the system power supply
(0V).
V
0
31
33
Output LCD power supply: These are the
V
1
V
2
V
3
30
29
28
32
31
30
Input
power supply pins for the LCD
controller/driver. They incorporate a
power supply split-resistance, and are
normally used with V
0
and V
1
shorted.
Clock pins
OSC
1
7
9
Input
These pins connect to a crystal or
OSC
2
6
8
Output ceramic oscillator, or can be used to
input an external clock. See section 4,
Clock Pulse Generators, for a typical
connection diagram.
X
1
3
5
Input
These pins connect to a 32.768-kHz or
X
2
4
6
Output 38.4-kHz crystal oscillator.
See section 4, Clock Pulse
Generators, for a typical connection
diagram.
System
control
RES
9
11
Input
Reset: When this pin is driven low, the
chip is reset
RESO
20
22
Output Reset output: Outputs the CPU internal
reset signal.