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HD74HC147 - 10-to-4-line Priority Encoder

Description

The HD74HC147

Features

  • priority encoding of the inputs to ensure that only the highest order data line is encoded. Nine input lines are encoded to a four line BCD output. The implied decimal zero codition requires no input condition as zero is encoded when all nine data lines are at a high logic level. All data inputs and outputs are active at the low logic level. Features.
  • High Speed Operation: tpd = 14.5 ns typ (CL = 50 pF) High Output Current: Fanout of 10 LSTTL Loa.

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Full PDF Text Transcription

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HD74HC147 10-to-4-line Priority Encoder Description The HD74HC147 features priority encoding of the inputs to ensure that only the highest order data line is encoded. Nine input lines are encoded to a four line BCD output. The implied decimal zero codition requires no input condition as zero is encoded when all nine data lines are at a high logic level. All data inputs and outputs are active at the low logic level. Features • • • • • High Speed Operation: tpd = 14.
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