M5482_04 Datasheet, PDF (1/10 Pages) STMicroelectronics – LED DISPLAY DRIVER

M5482
LED DISPLAY DRIVER
FEATURES SUMMARY
■ 2 DIGIT LED DRIVER (15 segments)
■ CURRENT GENERATOR OUTPUTS (no
resistor required)
■ CONTINUOUS BRIGHTNESS CONTROL
■ SERIAL DATA INPUT
■ WIDE SUPPLY VOLTAGE OPERATION
■ TTL COMPATIBILITY
play brightness by setting a reference current
through a variable resistor connected either to
VDD or to a separate supply of 13.2V maximum.
Figure 1. Package
APPLICATION EXAMPLES
■ MICROPROCESSOR DISPLAYS
■ INDUSTRIAL CONTROL INDICATOR
■ RELAY DRIVER
■ INSTRUMENTATION READOUTS
DESCRIPTION
The M5482 is a monolithic MOS integrated circuit
produced with an N-channel silicon gate technolo-
gy. It utilizes the M5451 die packaged in a 20-pin
plastic package copper frame, making it ideal for a
2-digit display. A single pin controls the LED dis-
PDIP20
(Plastic package)
Figure 2. 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
20
OUTPUT BIT 9
19
OUTPUT BIT 10
18
OUTPUT BIT 11
17
OUTPUT BIT 12
16
OUTPUT BIT 13
15
V_SS
14
OUTPUT BIT 14
13
OUTPUT BIT 15
12
DATA IN
11
CLOCK
June 2004
REV. 2
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