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74LS147

Part Number	74LS147
Manufacturer	ON Semiconductor
Description	LOW POWER SCHOTTKY
Published	Apr 23, 2005
Detailed Description	SN74LS147 SN74LS148 10-Line-to-4-Line and 8-Line-to-3-Line Priority Encoders The SN74LS147 and the SN74LS148 are Priorit...
Datasheet	74LS147 PDF File

Overview

SN74LS147 SN74LS148 10-Line-to-4-Line and 8-Line-to-3-Line Priority Encoders The SN74LS147 and the SN74LS148 are Priority Encoders.
They provide priority decoding of the inputs to ensure that only the highest order data line is encoded.
Both devices have data inputs and outputs which are active at the low logic level.
The LS147 encodes nine data lines to four-line (8-4-2-1) BCD.
The implied decimal zero condition does not require an input condition because zero is encoded when all nine data lines are at a high logic level.
The LS148 encodes eight data lines to three-line (4-2-1) binary (octal).
By providing cascading circuitry (Enable Input EI and Enable Output EO) octal expansion is allowed...

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