Datasheet

DS2408
29 of 39
Figure 18. DS2408 AS SLAVE INTERFACE FOR INTELLIGENT DISPLAY
47
DS9503
1
2
5
6
3
4
47U
VCC
LEDK
16
LEDA
15
D7
14
D6
13
D5
12
D4
11
D3
10
D2
9
D1
8
D0
7
S
T
B
6
R
/
W
5
D
/
C
4
CONTRAST
3
VCC
2
GND
1
VCC
10K
10
9
8
7
6
5
4
3
2
1
VCC
DS2408
P0
2
P1
14
P2
13
P3
12
P4
11
P5
9
P6
8
P7
7
10
GND
5
VCC
3
IO
4
Local iButton Probe
LCD Display
Up
Down
Select
5VDC
GND
1W
RSTZ
ACM1601B 16X1 Display
with Back Light
VCC
Figure 19. DS2408 AS MICROCONTROLLER PORT EXPANDER
DS2408
IO
4
VCC
3
GND
5
10
P7
7
P6
8
P5
9
P4
11
P3
12
P2
13
P1
14
P0
2
VC
C
2.2K
VCC
PIC12C508
OSC2/P4
3
OSC1/P5
2
P0
7
P1
6
P2/CK
5
CLR/P3
4
GND
8
VCC
1
VCC
MICROCONTROLLER
WITH FEW I/O PINS
RSTZ
24 I/O LINES OR
3 BYTE-WIDE
BUSES FROM A
SINGLE PIN
IO
4
VCC
3
GND
5
10
P7
7
P6
8
P5
9
P4
11
P3
12
P2
13
P1
14
P0
2
VCC
RSTZ
DS2408
IO
4
VCC
3
GND
5
10
P7
7
P6
8
P5
9
P4
11
P3
12
P2
13
P1
14
P0
2
VCC
RSTZ
DS2408