XD74LS147,XL74LS148,XD74LS148 10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS
■These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The ’LS147 devices encode nine data lines to four-line (8-4-2-1) BCD. The implied decimal zero condition requires no input condition, as zero is encoded when all nine data lines are at a high logic level. The ’LS148 devices encode eight data lines to three-line (4-2-1) binary (octal). Cascading circuitry (enable input EI and enable output EO) has been provided to allow octal expansion without the need for external circuitry. For all types, data inputs and outputs are active at the low logic level. All inputs are buffered to represent one normalized Series 74LS load, respectively.
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10-LINE TO 4-LINE AND 8-LINE TO 3-LINE PRIORITY ENCODERS 、 PRIORITY ENCODERS 、 TTL encoders |
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Datasheet |
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Please see the document for details |
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SOP16;DIP16 |
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English Chinese Chinese and English Japanese |
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2024/6/3 |
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Rev 1.1 |
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1.2 MB |
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