S e ria lly In t e rfa c e d , 8 -Dig it LED Dis p la y Drive rs
ABSOLUTE MAXIMUM RATINGS
Voltage (with respect to GND)
Operating Temperature Ranges
V+ ............................................................................-0.3V to 6V
DIN, CLK, LOAD, CS ...............................................-0.3V to 6V
All Other Pins .............................................-0.3V to (V+ + 0.3V)
Current
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, 10sec) .............................+300°C
DIG0–DIG7 Sink Current................................................500mA
SEGA–G, DP Source Current.........................................100mA
Continuous Power Dissipation (T = +85°C)
A
Narrow Plastic DIP ..........................................................0.87W
Wide SO ..........................................................................0.76W
Narrow CERDIP.................................................................1.1W
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
9/MAX721
(V+ = 5V ±10%, R
= 9.53kΩ ±1%, T = T
to T , unless otherwise noted.)
SET
A
MIN
MAX
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Supply Voltage
Shutdown Supply Current
V+
I+
4.0
5.5
150
8
V
All digital inputs at V+ or GND, T = +25°C
µA
A
R
SET
= open circuit
Operating Supply Current
I+
mA
All segments and decimal point on,
= -40mA
330
800
I
SEG_
Display Scan Rate
f
8 digits scanned
V+ = 5V, V = 0.65V
500
320
-30
1300
Hz
OSC
Digit Drive Sink Current
Segment Drive Source Current
I
mA
mA
DIGIT
OUT
I
T
= +25°C, V+ = 5V, V
= (V+ - 1V)
= +25°C, V+ = 5V, V = (V+ - 1V)
OUT
-40
20
-45
50
SEG
A
OUT
Segment Current Slew Rate
(MAX7221 only)
∆I
/∆t
T
A
10
mA/µs
%
SEG
Segment Drive Current Matching
∆I
SEG
3.0
Digit Drive Leakage
(MAX7221 only)
I
Digit off, V
= V+
-10
1
µA
DIGIT
DIGIT
Segment Drive Leakage
(MAX7221 only)
I
Segment off, V
= 0V
µA
mA
mA
SEG
SEG
Digit Drive Source Current
(MAX7219 only)
I
Digit off, V
= (V+ - 0.3V)
-2
5
DIGIT
DIGIT
Segment Drive Sink Current
(MAX7219 only)
I
Segment off, V
= 0.3V
SEG
SEG
2
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
