-21-
F7YLV
IC807
PCF8574AT <I/O Expander>
LP FILTER
I/O
PORT
8 BIT
SHIFT
REGISTER
I C BUS
CONTROL
WRITE pulse
READ pulse
POWER-ON
RESET
PCF8574
INTERRUPT
LOGIC
INPUT
FILTER
DD
SS
18
8
13
1
2
3
14
15
INT
A0
A1
A2
SCL
SDA
V
V
2
4
5
6
7
9
10
11
12
P0
P1
P2
P3
P4
P5
P6
P7
MBD980
IC809
CXA1315 <I/O Expander>
I
2
C Decoder
LATCH
Open collector
Power
On
Reset
REG.
GND
I
2
C bus
SDA
SCL
DAC
AMP
Level
convert
Level
convert
LATCH
Level
convert
LATCH
DAC
AMP
LATCH
DAC
AMP
LATCH
DAC
AMP
LATCH
DAC
AMP
3
4
5
6
7
DAC4
DAC3
DAC2
DAC1
DAC0
16
14
15
Vcc
13
12
11
10 9
2
1
SAD2 SAD1 SAD0
SW0~SW3
CXA1315P
8
Summary of Contents for CE32WH3-F
Page 35: ... 35 F7YLV 17 20 21 5 19 2 16 15 18 4 11 ...
Page 68: ...MAIN BOARD CIRCUIT SIDE MAIN BOARD COMPONENT SIDE ...
Page 79: ......