Datasheet Details
Part number:
74148, 74147
Manufacturer:
Motorola
File Size:
94.29 KB
Description:
Priority encoders.
Note:
This datasheet PDF includes multiple part numbers: 74148, 74147.
Please refer to the document for exact specifications by model.
74148, 74147, PRIORITY ENCODERS
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
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