Datasheet

Voltage (with respect to GND)
V+ ............................................................................-0.3V to +4V
SCLK, DIN, CS, DOUT................................-0.3V to (V+ + 0.3V)
P_ ...........................................................................-0.3V to +8V
DC Current into P_ ............................................................ 24mA
DC Current into DOUT .......................................................10mA
Total GND Current ............................................................ 200mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin Thin QFN
(derate 14.7mW/°C above +70°C) .........................1176mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)..........667mW
Operating Temperature Range
(T
MIN
to T
MAX
) ............................................. -40°C to +125°C
Junction Temperature ...................................................... +150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
(Typical Operating Circuit, V+ = 2.25V to 3.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = 3.3V, T
A
= +25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Supply Voltage V+ 2.25 3.60 V
Output Load External Supply
Voltage P0–P9
V
EXT
7 V
Standby Current
(Interface Idle)
I
STBY
All digital inputs at V+
or GND
T
A
= +25°C 0.70 1.5
µAT
A
= T
MIN
to +85°C 1.7
T
A
= T
MIN
to T
MAX
1.9
Supply Current I
+
f
SCLK
= 26MHz; other
digital inputs at V+ or
GND; DOUT unloaded
T
A
= +25°C 385 620
µAT
A
= T
MIN
to +85°C 680
T
A
= T
MIN
to T
MAX
730
Input High Voltage
(P0–P9, DIN, SCLK, CS)
V
IH
P0–P9 output register set to 0x01 0.7 x V+ V
Input Low Voltage
(P0–P9, DIN, SCLK, CS)
V
IL
P0–P9 output register set to 0x01 0.3 x V+ V
Input Leakage Current
(P0–P9, DIN, SCLK, CS)
I
IH
, I
IL
-0.2 +0.2 µA
Input Capacitance
(P0–P9, DIN, SCLK, CS
(Note 2) 10 pF
Output Low Voltage (P0–P9) V
OLP_
I
SINK
= 0.5mA, output register set to 0x00 0.4 V
Output Low Short-Circuit Current
(P0–P9)
V
OLPOUT
= 5V 10.8 20 mA
Output High Voltage (DOUT) V
OHDOUT
I
SOURCE
= -6mA V+ - 0.3V V
Output Low Voltage (DOUT) V
OLDOUT
I
SINK
= 6mA 0.3 V
Power-On Reset Voltage V
POR
2 V
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Maxim Integrated │ 2
MAX7317 10-Port SPI-Interfaced I/O Expander with
Overvoltage and Hot-Insertion Protection
Electrical Characteristics
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Absolute Maximum Ratings