M5481 Datasheet, PDF (1/8 Pages) STMicroelectronics – LED DISPLAY DRIVER

M5481
LED DISPLAY DRIVER
FEATURES
s 2 DIGIT LED DRIVER (14 segments)
s CURRENT GENERATOR OUTPUTS (no
registor required)
s CONTINUOU BRIGHTNESS CONTROL
s SERIAL DATA INPUT
s DATA ENABLE
s WIDE SUPPLY VOLTAGE OPERATION
s TLL COMPATIBILITY
s APPLICATION EXAMPLES
s MICROPROCESSOR DISPLAYS
s INDUSTRIAL CONTROL INDICATOR
s RELAY DRIVER
s 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
through a variable resistor connected either to V_DD
or to a separate supply of 13.2V maximum.
The M5481 is a pin-to-pin replacement of the NS
MM 5481.
PIN CONNECTIONS
Output Bit 8 1
Output Bit 7 2
Output Bit 6 3
Output Bit 5 4
Output Bit 4 5
Output Bit 3 ₆
Output Bit 2 ₇
Output Bit 1 8
Brightness Control 9
V_DD 10
April 2000
DIP20
(Plastic package)
ORDER CODE: M5481 B7
20 Output Bit 9
19 Output Bit 9
18 Output Bit 9
17 ^{Output Bit 9}
16 Output Bit 9
15
V_SS
14 Output Bit 9
13 Data Enable
12 Data In
11 Clock
Version 4.1
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