Datasheet

MAX7325
I
2
C Port Expander with 8 Push-Pull
and 8 Open-Drain I/Os
16
Maxim Integrated
TOP VIEW
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
INT
V+
SDA
SCL
AD0
O15
O14
O13
O12
MAX7325
QSOP
+
RST
AD2
P2
P0
P1
P3
P4
16
15
9
10
O11
O10
P5
P6
14
13
11
12
O9
O8
P7
GND
Pin Configurations (continued)
MAX7325
P2
P7
P6
P5
P4
O11
O10
O9
O8
O15
O14
O13
O12
V+
3.3V
µC
SCL
SCL
SDA
AD0
P1
P0
SDA
P3
GND
AD2
INT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
RST
INT
RST
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
INPUT/OUTPUT
Typical Application Circuit
I
2
C
CONTROL
O9
O8
O11
O10
O12
O13
O14
O15
P1
P0
P3
P2
P4
P5
P6
P7
INT
I/O
PORTS
POWER-
ON RESET
INPUT
FILTER
RST
SDA
SCL
AD2
AD0
MAX7325
Functional Diagram
Chip Information
PROCESS: BiCMOS
Package Information
For the latest package outline information and land patterns (foot-
prints), go to www.maximintegrated.com/packages
. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE NO.
LAND
PATTERN NO.
24 QSOP E24+1
21-0055
90-0172
24 TQFN-EP T2444+4
21-0139
90-0022