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SN74LS147 - 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS

Download the SN74LS147 datasheet PDF. This datasheet also covers the SN74LS147D variant, as both devices belong to the same 10-line-to-4-line and 8-line-to-3-line priority encoders family and are provided as variant models within a single manufacturer datasheet.

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Note: The manufacturer provides a single datasheet file (SN74LS147D_MotorolaInc.pdf) that lists specifications for multiple related part numbers.

📁 Similar Datasheet

Part Number Description Manufacturer
SN74LS147 Priority Encoders ON Semiconductor
SN74LS147 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS Texas Instruments
SN74LS147D Priority Encoders ON Semiconductor
SN74LS147N Priority Encoders ON Semiconductor
SN74LS14 Hex Schmitt-Trigger Inverter Texas Instruments

Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
SN74LS14 SCHMITT TRIGGERS DUAL GATE/HEX INVERTER
SN74LS145 1-OF-10 DECODER/DRIVER OPEN-COLLECTOR
SN74LS148 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
SN74LS10 TRIPLE 3-INPUT NAND GATE
SN74LS107A DUAL JK NEGATIVE EDGE-TRIGGERED FLIP-FLOP

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS The SN54 / 74LS147 and the SN54/ 74LS148 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 without needing external circuitry.