M5451B7 Datasheet, PDF (1/12 Pages) STMicroelectronics – LED DISPLAY DRIVERS

M5450
M5451
LED DISPLAY DRIVERS
FEATURES SUMMARY
■ M5450 34 OUTPUTS/15mA SINK
■ M5451 35 OUTPUTS/15mA SINK
■ CURRENT GENERATOR OUTPUTS (NO
EXTERNAL RESISTORS REQUIRED)
■ CONTINUOUS BRIGHTNESS CONTROL
■ SERIAL DATA INPUT
■ ENABLE (ON M5450)
■ WIDE SUPPLY VOLTAGE OPERATION
■ TTL COMPATIBILITY
Figure 1. Packages
40
1
PDIP40
(Plastic Package)
Application Examples:
■ MICROPROCESSOR DISPLAYS
■ INDUSTRIAL CONTROL INDICATOR
■ RELAY DRIVER
■ INSTRUMENTATION READOUTS
DESCRIPTION
The M5450 and M5451 are monolithic MOS inte-
grated circuits produced with an N-channel silicon
gate technology. They are available in 40-pin dual
in-line plastic packages.
A single pin controls the LED display brightness by
setting a reference current through a variable re-
sistor connected to V_DD or to a separate supply of
13.2V maximum.
PLCC44
(Plastic Chip Carrier)
April 2004
REV. 2
1/12