MAX7219 datasheet(2/16 Pages) MAXIM

Part #	MAX7219

Description	Serially Interfaced, 8-Digit LED Display Drivers

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Manufacturer	MAXIM [Maxim Integrated Products]

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Serially Interfaced, 8-Digit LED Display Drivers

2

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ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V+ = 5V ±10%, RSET = 9.53k

Ω ±1%, TA = TMIN to TMAX, 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

DIG0–DIG7 Sink Current................................................500mA

SEGA–G, DP Source Current.........................................100mA

Continuous Power Dissipation (TA = +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 (TMIN to TMAX)

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

RSET = open circuit

All digital inputs at V+ or GND, TA = +25°C

Digit off, VDIGIT = V+

TA = +25°C, V+ = 5V, VOUT = (V+ - 1V)

All segments and decimal point on,

ISEG_ = -40mA

8 digits scanned

V+ = 5V, VOUT = 0.65V

TA = +25°C, V+ = 5V, VOUT = (V+ - 1V)

CONDITIONS

8

Operating Supply Current

µA

150

I+

V

4.0

5.5

V+

Operating Supply Voltage

Shutdown Supply Current

µA

-10

IDIGIT

Digit Drive Leakage

(MAX7221 only)

%

3.0

∆ISEG

Segment Drive Current Matching

mA/µs

10

20

50

∆ISEG/∆t

Segment Current Slew Rate

(MAX7221 only)

mA

330

I+

Hz

500

800

1300

fOSC

Display Scan Rate

mA

320

IDIGIT

Digit Drive Sink Current

mA

-30

-40

-45

ISEG

Segment Drive Source Current

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

Segment off, VSEG = 0V

µA

1

ISEG

Segment Drive Leakage

(MAX7221 only)

Digit off, VDIGIT = (V+ - 0.3V)

mA

-2

IDIGIT

Digit Drive Source Current

(MAX7219 only)

Segment off, VSEG = 0.3V

mA

5

ISEG

Segment Drive Sink Current

(MAX7219 only)

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