7-SEGMENT DECODER-DRIVER (Low 40-mA, 30-Volt Outputs) ^-^-W-A-z'-
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7447
7-SEGMENT DECODER-DRIVER (Low 40-mA, 30-Volt Outputs)
^-^-W-A-z'-V^-V^-V./^w' SEGMENT
LAMP IDENTIFICATION
rESI BLANK
VIEW
This package accepts 1-2-4-8 positive-logic Binary Coded Decimal input converts proper pattern light 7-segment display. output intended light segment.
outputs sink milliamperes state withstand volts high state. Note that supply must remain volts. output-high state obtained only display device resistor pulls output some positive voltage less than volts.
Current-limiting resistors, typically ohms, must used when drv/ng light emitting diode display with this package. Incandescent fluorescent readouts directly driven.
Lamp Test input should remain high. Bringing Lamp Test ground simultaneously brings outputs ground.
Blanking input will extinguish only character "0." Blanking output provided extinguish character next stage leading-edge blanking desired.
Blanking output will extinguish display. permissible short this output ground.
Propagation delay.45 nanoseconds
r,jrrent package.43 milliamperes
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