S e ria lly In t e rfa c e d , 8 -Dig it LED Dis p la y Drive rs
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(V+ = +5V, T = +25°C, unless otherwise noted.)
A
SCAN FREQUENCY vs.
POSITIVE SUPPLY VOLTAGE
SEGMENT DRIVER OUTPUT CURRENT
vs. OUTPUT VOLTAGE
830
70
60
50
40
30
20
10
0
820
810
800
790
780
770
760
750
740
730
R
SET
= 10kΩ
R
SET
= 20kΩ
R
SET
= 40kΩ
9/MAX721
4.0
4.4
4.8
5.2
5.6
6.0
0
1
2
3
4
5
POSITIVE SUPPLY VOLTAGE (V)
OUTPUT VOLTAGE (V)
MAX7219
MAX7221
SEGMENT OUTPUT CURRENT
SEGMENT OUTPUT CURRENT
MAXIMUM INTENSITY = 31/32
MAXIMUM INTENSITY = 15/16
10mA/div
10mA/div
0
0
5µs/div
5µs/div
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
