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MAX7221EWG+
器件3D模型
80.214
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MAX7221EWG+数据手册
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Serially Interfaced, 8-Digit LED Display Drivers
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V+ = 5V ±10%, R
SET
= 9.53kΩ ±1%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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.
Voltage (with respect to GND)
V+ ............................................................................-0.3V to 6V
DIN, CLK, LOAD, CS ...............................................-0.3V to 6V
All Other Pins.............................................-0.3V to (V+ + 0.3V)
Current
DIG 0–DIG 7 Sink Current..............................................500mA
SEG A–G, DP Source Current........................................100mA
Continuous Power Dissipation (T
A
= +85°C)
Narrow Plastic DIP (derate 13.3mW/°C
above +70°C)..............................................................1066mW
Wide SO (derate 11.8mW/°C above +70°C).................941mW
Narrow CERDIP (derate 12.5mW/°C above +70°C) ...1000mW
Operating Temperature Ranges (T
MIN
to T
MAX
)
MAX7219C_G/MAX7221C_G ..............................0°C to +70°C
MAX7219E_G/MAX7221E_G ............................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
R
SET
= open circuit
All digital inputs at V+ or GND, T
A
= +25°C
Digit off, V
DIGIT
= V+
T
A
= +25°C, V+ = 5V, V
OUT
= (V+ - 1V)
All segments and decimal point on,
I
SEG_
= -40mA
8 digits scanned
V+ = 5V, V
OUT
= 0.65V
T
A
= +25°C, V+ = 5V, V
OUT
= (V+ - 1V)
CONDITIONS
8
Operating Supply Current
µA150I+
V4.0 5.5V+Operating Supply Voltage
Shutdown Supply Current
µA-10I
DIGIT
Digit Drive Leakage
(MAX7221 only)
%3.0ΔI
SEG
Segment Drive Current Matching
mA/µs10 20 50ΔI
SEG
/Δt
Segment Current Slew Rate
(MAX7221 only)
mA
330
I+
Hz500 800 1300f
OSC
Display Scan Rate
mA320I
DIGIT
Digit Drive Sink Current
mA-30 -40 -45I
SEG
Segment Drive Source Current
UNITSMIN TYP MAXSYMBOLPARAMETER
Segment off, V
SEG
= 0V µA1I
SEG
Segment Drive Leakage
(MAX7221 only)
Digit off, V
DIGIT
= (V+ - 0.3V) mA-2I
DIGIT
Digit Drive Source Current
(MAX7219 only)
Segment off, V
SEG
= 0.3V mA5I
SEG
Segment Drive Sink Current
(MAX7219 only)
MAX7219/MAX7221
2

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