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LED display driver
Micrel

The MM5450 and MM5451 LED display drivers are monolithic MOS IC's fabricated in an N-Channel, metal-gate process. The technology produces low-threshold, enhancement-mode, and ion-implanted depletion-mode devices.

A single pin controls the LED display brightness by setting a reference current through a variable resistor connected to the supply.

Features
* Continuous brightness control
* Serial data input
* No load signal requirement
* Enable (on MM5450)
* Wide power supply operation
* TTL compatibility
* 34 or 35 outputs, 15mA capability
* Alphanumeric capability

Applications
* ndustrial control indicator
* Relay driver
* Digital clock, thermometer, counter, voltmeter
* Instrumentation readouts
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