MAX7325 Maxim, MAX7325 Datasheet - Page 16

• Manufacturer Part Number: MAX7325
• Description: The MAX7325 2-wire serial-interfaced peripheral features 16 I/O ports
• Manufacturer: Maxim

I
and 8 Open-Drain I/Os
16
SDA
AD0
AD2
SCL
RST
2
TOP VIEW
C Port Expander with 8 Push-Pull
______________________________________________________________________________________
Pin Configurations (continued)
INPUT
FILTER
ON RESET
POWER-
GND
AD2
RST
INT
P0
P1
P2
P3
P4
P5
P6
P7
10
11
12
1
2
3
4
5
6
7
8
9
+
CONTROL
Functional Diagram
MAX7325
MAX7325
I
2
QSOP
C
24
23
22
21
20
19
18
17
16
15
14
13
V+
SDA
SCL
AD0
O15
O14
O13
O12
O11
O10
O9
O8
PORTS
I/O
O15
O14
O13
O12
O11
O10
O9
O8
P7
P6
P5
P4
P3
P2
P1
P0
INT
PROCESS: BiCMOS
µC
SCL
SDA
RST
INT
Typical Application Circuit
AD0
AD2
SCL
SDA
RST
INT
MAX7325
3.3V
GND
V+
Chip Information
O15
O14
O13
O12
O11
O10
O9
O8
P7
P6
P5
P4
P3
P2
P1
P0
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT