MAX7319 Maxim, MAX7319 Datasheet - Page 4

• Manufacturer Part Number: MAX7319
• Description: The MAX7319 2-wire serial-interfaced peripheral features eight input ports with selectable internal pullups, overvoltage protection to +6V, and transition detection with interrupt output
• Manufacturer: Maxim

I
Maskable Transition Detection
(T
4
4–7, 9–12 2–5, 7–10
2
A
QSOP
= +25°C, unless otherwise noted.)
1, 3
_______________________________________________________________________________________
13
14
15
16
—
C Port Expander with Eight Inputs and
2
8
PIN
TQFN
15, 1
16
11
12
13
14
EP
6
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-40
STANDBY CURRENT vs. TEMPERATURE
-25
V+ = +2.5V
-10 5
AD0, AD2
NAME
GND
I0–I7
SDA
RST
SCL
INT
V+
TEMPERATURE (°C)
EP
20 35 50 65 80 95 110 125
V+ = +3.3V
V+ = +1.71V
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 Table 3).
Reset Input, Active Low. Drive RST low to clear the 2-wire interface.
Input Ports. I0 to I7 are CMOS logic inputs protected to +6V.
Ground
Interrupt Output, Active Low. INT is an open-drain output rated at +6V.
I
I
Positive Supply Voltage. Bypass V+ to GND with a ceramic capacitor of at least 0.047µF.
Exposed Pad. Connect exposed pad to GND.
V+ = +5.0V
2
2
C-Compatible Serial Clock Input
C-Compatible Serial Data I/O
f
SCL
= 0kHz
Typical Operating Characteristics
60
50
40
30
20
10
0
FUNCTION
-40
SUPPLY CURRENT vs. TEMPERATURE
-25
V+ = +2.5V
-10 5 20
V+ = +1.71V
V+ = +3.3V
TEMPERATURE (°C)
35 50 65 80 95 110 125
V+ = +5.0V
Pin Description
f
SCL
= 400kHz