General Description
The MM5480 is a monolithic MOS integrated circuit utilizing
N-channel metal gate low threshold, enhancement mode
and ion-implanted depletion mode devices. It utilizes the
MM5451 die packaged in a 28-pin package making it ideal
for a 3(/2 digit display. The MM5480 is designed to drive
common anode-separate cathode LED displays. A single
pin controls the LED display brightness by setting a reference current through a variable resistor connected either to
VDD or to a separate supply of 11V maximum.

Features
Y Continuous brightness control
Y Serial data input
Y No load signal required
Y Wide power supply operation
Y TTL compatibility
Y Alphanumeric capability
Y 3(/2 digit displays

Applications
Y COPSTM microcontrollers or microprocessor displays
Y Industrial control indicator
Y Relay driver
Y Digital clock, thermometer, counter, voltmeter
Y Instrumentation readouts