M5480_04 Datasheet, PDF (1/10 Pages) STMicroelectronics – LED DISPLAY DRIVER

M5480
LED DISPLAY DRIVER
FEATURES SUMMARY
■ 3 1/2 DIGIT LED DRIVER (23 segments)
■ CURRENT GENERATOR OUTPUTS (no
resistors required)
■ CONTINUOUS BRIGHTNESS CONTROL
■ SERIAL DATA INPUT
■ NO LOAD SIGNAL REQUIRED
■ WIDE SUPPLY VOLTAGE OPERATION
■ TTL COMPATIBILITY
Application Examples:
■ MICROPROCESSOR DISPLAY
■ INDUSTRIAL CONTROL INDICATION
■ RELAY DRIVER
■ INSTRUMENTATION READOUTS
Figure 1. Package
28
1
PDIP28
(Plastic Package)
DESCRIPTION
The M5480 is a monolithic MOS integrated circuit
produced with a N-channel silicon gate technolo-
gy. It utilizes the M5451 die packaged in a 28-pin
plastic package making it ideal for a 3 1/2 digit dis-
paly. A single pin controls the LED dispaly bright-
ness by setting a reference current through a
variable resistor connected either to V_DD or to a
separate supply of 13.2V maximum.
The M5480 is a pin-to-pin replacement of the NS
MM 5480.
April 2004
REV. 2
1/10