
23
Pin No.
Type
Symbol
FP-80A,
TFP-80C
CP-84,
CG-84
I/O
Name and Function
A/D and D/A
converters
AV
CC
29
42
I
Analog reference voltage: Reference
voltage pin for the A/D and D/A
converters. If the A/D and D/A
converters are not used, connect AV
CC
to the system power supply.
AV
SS
38
51
I
Analog ground: Ground pin for the
A/D and D/A converters. Connect to
system ground (0 V).
Flash memory
[H8/3334YF-ZTAT]
[H8/3337YF-ZTAT]
FV
PP
718
I
Programming power supply for on-
board programming: Connect to a
flash memory programming power
supply (+12 V).
I
2C bus interface
(option)
SCL
80
11
I/O
I
2C clock I/O: Input/output pin for I2C
clock. Features a bus drive function.
(H8/3337 Series
only)
SDA
13
25
I/O
I
2C data I/O: Input/output pin for I2C
data. Features a bus drive function.
I/O ports
P1
7 to P1 0
57 to 64
71 to 78
I/O
Port 1: An 8-bit input/output port with
programmable MOS input pull-ups and
LED driving capability. The direction of
each bit can be selected in the port 1
data direction register (P1DDR).
P2
7 to P2 0
48 to 55
61 to 63,
65 to 69
I/O
Port 2: An 8-bit input/output port with
programmable MOS input pull-ups and
LED driving capability. The direction of
each bit can be selected in the port 2
data direction register (P2DDR).
P3
7 to P3 0
72 to 65
3, 1,
84 to 79
I/O
Port 3: An 8-bit input/output port with
programmable MOS input pull-ups.
The direction of each bit can be
selected in the port 3 data direction
register (P3DDR).
P4
7 to P4 0
46 to 39
59 to 52
I/O
Port 4: An 8-bit input/output port. The
direction of each bit can be selected in
the port 4 data direction register
(P4DDR).
P5
2 to P5 0
9 to 11
20 to 22
I/O
Port 5: A 3-bit input/output port. The
direction of each bit can be selected in
the port 5 data direction register
(P5DDR).