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SN54LS848 - 8-INPUT PRIORITY ENCODERS

Download the SN54LS848 datasheet PDF. This datasheet also covers the SN54LS348 variant, as both devices belong to the same 8-input 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 (SN54LS348_MotorolaInc.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Motorola Semiconductor (now NXP Semiconductors)

Part Number Description
SN54LS136 QUAD 2-INPUT EXCLUSIVE OR GATE
SN54LS14 SCHMITT TRIGGERS DUAL GATE/HEX INVERTER
SN54LS148 10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
SN54LS161A BCD DECADE COUNTERS / 4-BIT BINARY COUNTERS
SN54LS162A BCD DECADE COUNTERS / 4-BIT BINARY COUNTERS

Full PDF Text Transcription

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8-INPUT PRIORITY ENCODERS WITH 3-STATE OUTPUTS The SN54 / 74LS348 and the SN54 / 74LS848 are eight input priority encoders which provide the 8-line to 3-line function. The outputs (A0 – A2) and inputs (0 – 7) are active low. The active low input which has the highest priority (input 7 has the highest) is represented on the outputs (output A0 is the lowest bit). An example would be if inputs 1, 2 and 4 were low, then a binary 4 would be represented on the outputs. The GS (Group Signal) output is active low when any of the inputs are low. It serves to indicate when any of the inputs are active. A0, A1 and A2 are three-state outputs. This allows for up to 64 line expansion without the need for special external circuitry.
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