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MAX7325 Datasheet(PDF) 4 Page - Maxim Integrated Products

Part No. MAX7325
Description  I2C Port Expander with 8 Push-Pull and 8 Open-Drain I/Os
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX7325 Datasheet(HTML) 4 Page - Maxim Integrated Products

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I2C Port Expander with 8 Push-Pull
and 8 Open-Drain I/Os
4
_______________________________________________________________________________________
Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
STANDBY CURRENT
vs. TEMPERATURE
TEMPERATURE (
°C)
-40 -25 -10 5
20 35 50 65 80 95 110 125
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
V+ = +3.3V
V+ = +5.0V
V+ = +2.5V
V+ = +1.71V
fSCL = 0kHz
SUPPLY CURRENT
vs. TEMPERATURE
TEMPERATURE (
°C)
-40 -25 -10 5
203550658095 110 125
0
10
20
30
40
50
60
V+ = +3.3V
V+ = +5.0V
V+ = +2.5V
V+ = +1.71V
fSCL = 400kHz
OUTPUT VOLTAGE LOW
vs. TEMPERATURE
TEMPERATURE (
°C)
-40 -25 -10 5
20 35 50 65 80 95 110 125
0
0.05
0.10
0.15
0.20
0.25
V+ = +3.3V
ISINK = 15mA
V+ = +5.0V
ISINK = 20mA
V+ = +2.5V
ISINK = 10mA
V+ = +1.71V
ISINK = 5mA
OUTPUT VOLTAGE HIGH
vs. TEMPERATURE
TEMPERATURE (
°C)
-40 -25 -10 5
20 35 50 65 80 95 110 125
0
1
2
3
4
5
6
V+ = +3.3V
ISOURCE = 5mA
V+ = +5.0V
ISOURCE = 10mA
V+ = +2.5V ISOURCE = 5mA
V+ = +1.71V ISOURCE = 2mA
Pin Description
PIN
QSOP
TQFN
NAME
FUNCTION
122
INT
Interrupt Output, Active Low. INT is an open-drain output.
223
RST
Reset Input, Active Low. Drive RST low to clear the 2-wire interface.
3, 21
24, 18
AD2, AD0
Address Inputs. Select device slave address with AD0 and AD2. Connect AD0 and AD2
to either GND, V+, SCL, or SDA to give four logic combinations (see Tables 2 and 3).
4–11
1–8
P0–P7
Open-Drain I/O Ports
12
9
GND
Ground
13–20
10–17
O8–O15
Output Ports. O8–O15 are push-pull outputs rated at 20mA.
22
19
SCL
I2C-Compatible Serial-Clock Input
23
20
SDA
I2C-Compatible Serial-Data I/O
24
21
V+
Positive Supply Voltage. Bypass V+ to GND with a ceramic capacitor of at least 0.047µF.
EP
EP
Exposed Paddle. Connect exposed pad to GND.


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