M5450B7 Datasheet PDF - ST Microelectronics

●DESCRIPTION

●The M5450 and M5451 are monolithic MOS integrated 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 resistor connected to VDDor to a separate supply of 13.2V maximum.

●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

●Application Examples:

●■ MICROPROCESSOR DISPLAYS

●■ INDUSTRIAL CONTROL INDICATOR

●■ RELAY DRIVER

●■ INSTRUMENTATION READOUTS