Transcription of LED Display Driver - Microchip Technology
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LED Display Driver - Microchip Technology
2016 Microchip Technology 1MM5450/51 Features Continuous Brightness Control Serial Data Input No Load Signal Requirement Enable (MM5450 Only) Wide Power Supply Operation TTL Compatibility 34 or 35 Outputs, 15 mA Capability Alphanumeric CapabilityApplications Industrial Control Indicator Relay Driver Digital Clock, Thermometer, Counter, Voltmeter Instrumentation ReadoutsGeneral DescriptionThe MM5450 and MM5451 LED Display drivers aremonolithic MOS IC s fabricated in an N-Channel,metal-gate process. The Technology produceslow-threshold, enhancement-mode, and ion-implanteddepletion-mode single pin controls the LED Display brightness bysetting a reference current through a variable resistorconnected to the Diagram35 OUTPUT BUFFERS35 LATCHES35-BIT SHIFT REGISTERLOADRESETRESET(only availablein die form)SERIAL DATA22 CLOCK21 DATA ENABLE/OUT 35(See Note 1)23192024 OUT 3418 OUT 11 BRIGHTNESSCONTROLVDDNote 1: Pin in Data Enable in MM5450 Pin in Output 25 in MM5451 LED Display DriverMM5450/51DS20005651A-page 2 2016 Microchip Technology Diagram: DieVOUTPUT BIT 24MM5450/5451 DIE PINOUTOUTPUT BIT 25 OUTPUT BIT 26 OUTPUT BIT 27 OUTPUT BIT 28 OUTPUT BIT 29 OUTPUT BIT 30 OUTPUT BIT 31 OUTPUT BIT 32 OUTPUT BIT 33 SSVOUTPUT BIT 13 OUTPUT BIT 14 OUTPUT BIT 15 OUTPUT BIT 16 OUTPUT BIT 17 OUTPUT BIT 22 OUTPUT BIT 23 OUTPUT BIT 18 OUTPUT BIT 19 OUTPUT BIT 20 OUTPUT
2016 Microchip Technology Inc. DS20005651A-page 1 MM5450/51 Features • Continuous Brightness Control • Serial Data Input • No Load Signal Requirement
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