M5481| Datasheet

M5481, M5481B7

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M5481
LED DISPLAY DRIVER
FEATURES SUMMARY 2 DIGIT LED DRIVER (14 segments)

CURRENT GENERATOR OUTPUTS (no registor required) CONTINUOUS BRIGHTNESS CONTROL SERIAL DATA INPUT DATA ENABLE WIDE SUPPLY VOLTAGE OPERATION TLL COMPATIBILITY APPLICATION EXAMPLES MICROPROCESSOR DISPLAYS INDUSTRIAL CONTROL INDICATOR RELAY DRIVER INSTRUMENTATION READOUTS

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

PDIP20 (Plastic package)

DESCRIPTION The M5481 is a monolithic MOS integrated circuit produced with a N-channel silicon gate technology. 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 display brightness by setting a reference current Figure 2. Pin Connections
Output Bit 8 Output Bit 7 Output Bit 6 Output Bit 5 Output Bit 4 Output Bit 3 Output Bit 2 Output Bit 1 Brightness Control VDD 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 Output Bit 9 Output Bit 10 Output Bit 11 Output Bit 12 Output Bit 13 VSS Output Bit 14 Data Enable Data In Clock

REV. 2 April 2004 1/10