MAX7301(2003) 查看數據表（PDF） - Maxim Integrated
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MAX7301 Datasheet PDF : 18 Pages
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4-Wire-Interfaced, 2.5V to 5.5V, 20-Port and
28-Port I/O Expander
ABSOLUTE MAXIMUM RATINGS
Voltage (with respect to GND)
V+ .............................................................................-0.3V to +6V
All Other pins................................................-0.3V to (V+ + 0.3V)
P4–P31 Current ................................................................±30mA
GND Current .....................................................................800mA
Continuous Power Dissipation (TA = +70°C)
28-Pin PDIP (derate 20.8mW/°C above +70°C).........1667mW
28-Pin SSOP (derate 9.5mW/°C above +70°C) ...........762mW
36-Pin SSOP (derate 11.8mW/°C above +70°C) .........941mW
40-Pin QFN (derate 23.25mW/°C above +70°C) .......1860mW
Operating Temperature Range
(TMIN, TMAX) ..................................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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.
ELECTRICAL CHARACTERISTICS
(Typical Operating Circuit, V+ = 2.5V to 5.5V, TA = TMIN to TMAX, unless otherwise noted.) (Note 1)
PARAMETER
Operating Supply Voltage
Shutdown Supply Current
Operating Supply Current
(Output High)
Operating Supply Current
(Output Low)
Operating Supply Current
(Input)
INPUTS AND OUTPUTS
SYMBOL
CONDITIONS
MIN
V+
2.5
ISHDN
IGPOH
All digital inputs at V+
or GND
All ports programmed
as outputs high, no
load, all other inputs
at V+ or GND
TA = +25°C
TA = -40°C to +85°C
TA = TMIN to TMAX
TA = +25°C
TA = -40°C to +85°C
TA = TMIN to TMAX
IGPOL
All ports programmed
as outputs low, no
load, all other inputs
at V+ or GND
TA = +25°C
TA = -40°C to +85°C
TA = TMIN to TMAX
All ports programmed TA = +25°C
as inputs without
IGPI
pullup, ports, and all TA = -40°C to +85°C
other inputs at V+ or
GND
TA = TMIN to TMAX
Logic High Input Voltage
Port Inputs
VIH
0.7 ✕
V+
Logic Low Input Voltage
Port Inputs
VIL
Input Leakage Current
GPIO Input Internal Pullup to V+
Hysteresis Voltage GPIO Inputs
Output High Voltage
IIH, IIL
IPU
∆VI
VOH
GPIO inputs without pullup,
VPORT = V+ to GND
V+ = 2.5V
V+ = 5.5V
GPIO outputs, ISOURCE = 2mA,
TA = -40°C to +85°C
GPIO outputs, ISOURCE = 1mA,
TA = TMIN to TMAX (Note 2)
-100
12
80
V+ -
0.7
V+ -
0.7
TYP
5.5
180
170
110
±1
19
120
0.3
MAX
5.5
8
10
11
230
250
270
210
230
240
135
140
145
UNITS
V
µA
µA
µA
µA
V
0.3 ✕
V
V+
+100
nA
30
µA
180
V
V
2 _______________________________________________________________________________________
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