| Operating Temperature: | 0~70(Celsius) |
|---|---|
| Shape: | DIP |
| Technics: | Semiconductor IC |
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A series of decoders, multiplexers, and demultiplexers of 74LS series low-power Schottky logic ICs. The 74LS series uses bipolar junction technology, coupled with Schottky diode clips to achieve the same operating speed as the original 74TTL series, but with much lower power consumption.These devices contain three independent 3-input and gates. The SN74LS147N is characterized for operation from 0°C to 70°C.These TTL encoders feature priority decoding of the inputs to ensure that only the highest-order data line is encoded. The SNLS147N 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.For all types, data inputs and outputs are active at the low logic level.
1.Pin diagram:
2.logic diagram (positive logic):
3.Recommended Operating Conditions:
4.Electrical Characteristics :
electrical characteristics over recommended operating free-air temperature range (unless otherwise noted)
5.switching characteristics, VCC = 5 V, TA = 25ºC :
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