Datasheet

Section 1 Overview
Rev. 4.00 Jun 06, 2006 page 22 of 1004
REJ09B0301-0400
Pin No.
Type Symbol
FP-80A
TFP-80C I/O Name and Function
AN7 to
AN0
37 to 30 Input Analog input: A/D converter analog input pins.A/D
converter
(ADC)
CN0 to
CN7
21 to 24,
25 to 28
Input Expansion A/D inputs: Expansion A/D input pins
can be connected to the A/D converter, but since
they are also used as digital input/output pins,
precision will fall.
ADTRG 20 Input A/D conversion external trigger input: Pin for
input of an external trigger to start A/D conversion.
D/A
converter
(DAC)
DA0
DA1
36
37
Output Analog output: D/A converter analog output pins.
A/D
converter
D/A
converter
AVCC 29 Input Analog reference voltage: The analog power
supply pin for the A/D converter and D/A converter.
When the A/D and D/A converters are not used, this
pin should be connected to the system power
supply (+5 V or +3 V).
AVSS 38 Input Analog ground: The ground pin for the A/D
converter and D/A converter. This pin should be
connected to the system power supply (0 V).
Timer
connection
VSYNCI,
HSYNCI,
CSYNCI,
VFBACKI,
HFBACKI
23
42
44
24
21
Input Timer connection input: Timer connection
synchronous signal input pins.
VSYNCO,
HSYNCO,
CLAMPO,
CBLANK
22
43
25
48
Output Timer connection output: Timer connection
synchronous signal output pins.
I
2
C bus
interface
(IIC)
(option)
SCL0
SCL1
9
80
Input/
output
I
2
C clock input/output (channels 0 and 1): I
2
C
clock I/O pins. These pins have a bus drive
function.
The SCL0 output form is NMOS open-drain
SDA0
SDA1
13
41
Input/
output
I
2
C data input/output (channels 0 and 1): I
2
C data
I/O pins. These pins have a bus drive function.
The SDA0 output form is NMOS open-drain.