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M5481 Datasheet(PDF) 1 Page - STMicroelectronics |
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M5481 Datasheet(HTML) 1 Page - STMicroelectronics |
1 / 10 page 1/10 April 2004 M5481 LED DISPLAY DRIVER REV. 2 FEATURES SUMMARY ■ 2 DIGIT LED DRIVER (14 segments) ■ CURRENT GENERATOR OUTPUTS (no registor required) ■ CONTINUOU S BRIGHTNESS CONTROL ■ SERIAL DATA INPUT ■ DATA ENABLE ■ WIDE SUPPLY VOLTAGE OPERATION ■ TLL COMPATIBILITY ■ APPLICATION EXAMPLES ■ MICROPROCESSOR DISPLAYS ■ INDUSTRIAL CONTROL INDICATOR ■ RELAY DRIVER ■ INSTRUMENTATION READOUTS DESCRIPTION The M5481 is a monolithic MOS integrated circuit produced with a N-channel silicon gate technolo- gy. It uses the M5450 die packaged in a 20-pin plastic package copper frame, making it ideal for a 1-digit display. A single pin controls the LED dis- play brightness by setting a reference current through a variable resistor connected either to VDD or to a separate supply of 13.2V maximum. The M5481 is a pin-to-pin replacement of the NS MM 5481. Figure 1. Package Figure 2. Pin Connections PDIP20 (Plastic package) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Output Bit 9 Data Enable Data In Clock VDD Brightness Control Output Bit 8 Output Bit 7 Output Bit 6 Output Bit 5 Output Bit 4 Output Bit 3 Output Bit 2 Output Bit 1 Output Bit 10 Output Bit 11 Output Bit 12 Output Bit 13 Output Bit 14 VSS |
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