Datasheet

Serially Interfaced, 8-Digit LED Display Drivers
__________________________________________Typical Operating Characteristics
(V+ = +5V, T
A
= +25°C, unless otherwise noted.)
730
750
740
770
760
790
780
800
820
810
830
4.0 4.4 4.8 5.2 5.6 6.0
SCAN FREQUENCY vs.
POSITIVE SUPPLY VOLTAGE
MAX7219/21 01
POSITIVE SUPPLY VOLTAGE (V)
SCAN FREQUENCY (Hz)
0
20
10
40
30
60
50
70
012345
SEGMENT DRIVER OUTPUT CURRENT
vs. OUTPUT VOLTAGE
MAX7219/21 02
OUTPUT VOLTAGE (V)
OUTPUT CURRENT (mA)
R
SET
= 10kΩ
R
SET
= 20kΩ
R
SET
= 40kΩ
MAX7219
SEGMENT OUTPUT CURRENT
MAX7219/21 03
5μs/div
10mA/div
0
MAXIMUM INTENSITY = 31/32
MAX7221
SEGMENT OUTPUT CURRENT
MAX7219/21 04
5μs/div
10mA/div
0
MAXIMUM INTENSITY = 15/16
MAX7219/MAX7221
4
Maxim Integrated