MAX7327 Maxim, MAX7327 Datasheet - Page 4

• Manufacturer Part Number: MAX7327
• Description: The MAX7327, a 2-wire serial-interfaced peripheral, features 12 push-pull outputs and four configurable open-drain I/O ports with selectable internal pullups and transition detection
• Manufacturer: Maxim

I
Outputs and 4 Open-Drain I/Os
(T
4
11, 13–20
4, 5, 10,
2
A
QSOP
3, 21
= +25°C, unless otherwise noted.)
6–9
_______________________________________________________________________________________
12
22
23
24
—
1
2
C Port Expander with 12 Push-Pull
PIN
1, 2, 7, 8,
24, 18
TQFN
10–17
0.25
0.20
0.15
0.10
0.05
3–6
EP
22
23
19
20
21
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
9
0
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
V+ = +2.5V
V+ = +2.5V
I
SINK
V+ = +3.3V
I
SINK
= 10mA
OUTPUT VOLTAGE LOW
= 15mA
AD2, AD0
STANDBY CURRENT
vs. TEMPERATURE
vs. TEMPERATURE
O6–O15
O0, O1,
NAME
P2–P5
TEMPERATURE (°C)
TEMPERATURE (°C)
GND
V+ = +1.71V
SDA
SCL
RST
INT
V+
EP
V+ = +1.71V
I
SINK
V+ = +3.3V
= 5mA
V+ = +5.0V
I
SINK
V+ = +5.0V
V+ = +1.62V
I
SINK
f
= 20mA
Active-Low Interrupt Output. INT is an open-drain output.
Active-Low Reset Input. Drive RST low to clear the 2-wire interface.
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).
Output Ports. O0, O1, O6–O15 are push-pull outputs rated at 20mA.
P2–P5 Open-Drain I/Os
Ground
I
I
Positive Supply Voltage. Bypass V+ to GND with a 0.047µF ceramic capacitor.
Exposed Pad. Connect exposed pad to GND.
SCL
2
2
C-Compatible Serial Clock Input
C-Compatible Serial Data I/O
= 4mA
= 0kHz
Typical Operating Characteristics
60
50
40
30
20
10
6
5
4
3
2
1
0
0
FUNCTION
-40 -25 -10 5 20 35 50 65 80 95 110 125
-40 -25 -10 5 20 35 50 65 80 95 110 125
V+ = +3.3V
I
SOURCE
OUTPUT VOLTAGE HIGH
vs. TEMPERATURE
vs. TEMPERATURE
SUPPLY CURRENT
= 5mA
TEMPERATURE (°C)
TEMPERATURE (°C)
V+ = +1.71V I
V+ = +2.5V I
V+ = +5.0V
I
SOURCE
SOURCE
SOURCE
V+ = +3.3V
V+ = +5.0V
V+ = +2.5V
V+ = +1.71V
f
Pin Description
SCL
= 2mA
= 10mA
= 5mA
= 400kHz