M5480 Datasheet, PDF (1/6 Pages) STMicroelectronics – LED DISPLAY DRIVER

. _{3 1/2 DIGIT LED DRIVER (23 segments)}
. _{CURRENT GENERATOR OUTPUTS (no re-}
sistors required)
. _{CONTINUOUS BRIGHTNESS CONTROL}
. _{SERIAL DATA INPUT}
. _{NO LOAD SIGNAL REQUIRED}
. _{WIDE SUPPLY VOLTAGE OPERATION}
. _{TTL COMPATIBILITY}
....^{Applications examples}
MICROPROCESSOR DISPLAYS
INDUSTRIAL CONTROL INDICATION
RELAY DRIVER
INSTRUMENTATION READOUTS
DESCRIPTION
The M5480 is a monolithic MOS integrated circuit
produced with a N-channel silicon gate technology.
It utilizes the M5451 die packaged in a 28-pin
plas-tic package making it ideal for a 3 1/2 digit
dispaly. A single pin controls the LED dispaly bright-
ness by setting a reference current through a vari-
able resistor connected either to VDD or to a
separate supply of 13.2V maximum.
The M5480 is a pin-to-pin replacement of the NS
MM 5480.
PIN CONNECTIONS
V_SS
1
OUTPUT BIT 11
2
OUTPUT BIT 10
3
OUTPUT BIT 9
4
OUTPUT BIT 8
5
OUTPUT BIT 7
6
OUTPUT BIT 6
7
OUTPUT BIT 5
8
OUTPUT BIT 4
9
OUTPUT BIT 3
10
OUTPUT BIT 2
11
OUTPUT BIT 1
12
BRIGHTNESS CONTROL
13
V _DD
14
May 1993
M5480
LED DISPLAY DRIVER
DIP-28
(Plastic Package)
ORDER CODE : M5480B7
28
OUTPUT BIT 12
27
OUTPUT BIT 13
26
OUTPUT BIT 14
25
OUTPUT BIT 15
24
OUTPUT BIT 16
23
OUTPUT BIT 17
22
OUTPUT BIT 18
21
OUTPUT BIT 19
20
OUTPUT BIT 20
19
OUTPUT BIT 21
18
OUTPUT BIT 22
17
OUTPUT BIT 23
16
DATA IN
15
CLOCK IN
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