MAX7219EWG(2003) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX7219EWG
(Rev.:2003)

Serially Interfaced, 8-Digit LED Display Drivers

Maxim Integrated 

MAX7219/MAX7221

Serially Interfaced, 8-Digit LED Display Drivers

__________________________________________Typical Operating Characteristics

(V+ = +5V, TA = +25°C, unless otherwise noted.)

SCAN FREQUENCY vs.

POSITIVE SUPPLY VOLTAGE

830

820

810

800

790

780

770

760

750

740

730

4.0 4.4 4.8 5.2 5.6 6.0

POSITIVE SUPPLY VOLTAGE (V)

SEGMENT DRIVER OUTPUT CURRENT

vs. OUTPUT VOLTAGE

70

60

RSET = 10kΩ

50

40

RSET = 20kΩ

30

20

RSET = 40kΩ

10

0

0

1

2

3

4

5

OUTPUT VOLTAGE (V)

MAX7219

SEGMENT OUTPUT CURRENT

MAXIMUM INTENSITY = 31/32

10mA/div

0

5μs/div

MAX7221

SEGMENT OUTPUT CURRENT

MAXIMUM INTENSITY = 15/16

10mA/div

0

5μs/div

4

Maxim Integrated

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