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MAX7317

更新时间： 2023-12-20 18:45:22
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
11页 776K
描述
10端口、SPI接口输入/输出扩展器，带有过压和热插入保护

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MAX7317 数据手册

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MAX7317  
10-Port SPI-Interfaced I/O Expander with  
Overvoltage and Hot-Insertion Protection  
Absolute Maximum Ratings  
Voltage (with respect to GND)  
Continuous Power Dissipation (T = +70°C)  
A
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  
16-Pin TQFN (derate 14.7mW/°C above +70°C)......1176mW  
16-Pin QSOP (derate 8.3mW/°C above +70°C)..........667mW  
Operating Temperature Range  
(T  
to T  
)............................................. -40°C to +125°C  
MIN  
MAX  
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+ = 2.25V to 3.6V, T = T  
to T  
, unless otherwise noted. Typical values are at V+ = 3.3V, T = +25°C.)  
A
MIN  
MAX A  
(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
7
V
EXT  
T
T
T
T
T
T
= +25°C  
0.70  
385  
1.5  
1.7  
A
A
A
A
A
A
Standby Current  
(Interface Idle)  
All digital inputs at V+  
or GND  
I
= T  
to +85°C  
µA  
STBY  
MIN  
MIN  
= T  
to T  
1.9  
MAX  
= +25°C  
620  
680  
730  
f
= 26MHz; other  
SCLK  
Supply Current  
I
digital inputs at V+ or  
GND; DOUT unloaded  
= T  
to +85°C  
µA  
+
MIN  
MIN  
= T  
to T  
MAX  
Input High Voltage  
V
P0–P9 output register set to 0x01  
P0–P9 output register set to 0x01  
0.7 x V+  
-0.2  
V
V
IH  
(P0–P9, DIN, SCLK, CS)  
Input Low Voltage  
V
0.3 x V+  
+0.2  
IL  
(P0–P9, DIN, SCLK, CS)  
Input Leakage Current  
I
, I  
µA  
IH IL  
(P0–P9, DIN, SCLK, CS)  
Input Capacitance  
(Note 2)  
10  
pF  
V
(P0–P9, DIN, SCLK, CS  
Output Low Voltage (P0–P9)  
V
OLP_  
I
= 0.5mA, output register set to 0x00  
SINK  
0.4  
20  
Output Low Short-Circuit Current  
(P0–P9)  
V
= 5V  
10.8  
mA  
OLPOUT  
Output High Voltage (DOUT)  
Output Low Voltage (DOUT)  
Power-On Reset Voltage  
V
I
= -6mA  
V+ - 0.3V  
2
V
V
V
OHDOUT SOURCE  
V
I
= 6mA  
0.3  
OLDOUT SINK  
V
POR  
Maxim Integrated  
│ 2  
www.maximintegrated.com  
1234567...11

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