MAX7301 Maxim, MAX7301 Datasheet - Page 15

• Manufacturer Part Number: MAX7301
• Description: The MAX7301 compact, serial-interfaced I/O expander (or general-purpose I/O (GPIO) peripheral) provides microprocessors with up to 28 ports
• Manufacturer: Maxim

TOP VIEW
DOUT
GND
GND
ISET
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
10
11
12
13
14
1
2
3
4
5
6
7
8
9
4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
+
28 SSOP
MAX7301
______________________________________________________________________________________
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V+
CS
DIN
SCLK
P31
P30
P29
P28
P27
P26
P25
P24
P23
P22
DOUT
ISET
GND
GND
P12
P13
P10
P14
P11
P15
P16
P17
P18
P19
P20
P21
P8
P9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
+
36 SSOP
MAX7301
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
V+
CS
DIN
SCLK
P4
P31
P5
P30
P6
P29
P7
P28
P27
P26
P25
P24
P23
P22
28-Port I/O Expander
DOUT
SCLK
GND
GND
GND
N.C.
ISET
DIN
CS
V+
31
32
33
34
35
36
37
38
39
40
+
30 29 28 27 26 25 24 23 22 21
1
2
3
Pin Configurations
4
MAX7301
TQFN
5
6
7
8
9 10
20
19
18
17
16
15
14
13
12
11
P25
P24
P23
P22
P21
P20
P19
P18
N.C.
N.C.
15