April 2000

1/8

Version 4.1

M5481

LED DISPLAY DRIVER

FEATURES

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2 DIGIT LED DRIVER (14 segments)

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CURRENT

GENERATOR

OUTPUTS

(no

registor required)

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CONTINUOU BRIGHTNESS CONTROL

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SERIAL DATA INPUT

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DATA ENABLE

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WIDE SUPPLY VOLTAGE OPERATION

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TLL COMPATIBILITY

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APPLICATION EXAMPLES

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MICROPROCESSOR DISPLAYS

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INDUSTRIAL CONTROL INDICATOR

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RELAY DRIVER

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INSTRUMENTATION READOUTS

DESCRIPTION

The M5481 is a monolithic MOS integrated circuit

produced with a N-channel silicon gate technolo-

gy. It uses the M5450 die packaged in a 20-pin

plastic package copper frame, making it ideal for a

1-digit display. A single pin controls the LED dis-

play brightness by setting a reference current

or to a separate supply of 13.2V maximum.

The M5481 is a pin-to-pin replacement of the NS

MM 5481.

PIN CONNECTIONS

DIP20

(Plastic package)

ORDER CODE: M5481 B7

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Output Bit 9

Output Bit 9

Output Bit 9

Output Bit 9

Output Bit 9

Output Bit 9

Data Enable

Data In

Clock

Brightness Control

Output Bit 1

Output Bit 8

Output Bit 7

Output Bit 6

Output Bit 5

Output Bit 4

Output Bit 3

Output Bit 2

1