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![74LS273 Original supply, US $ 0.80-1.00 , Logic ICs, [TI] Texas](https://i2.wp.com/www.seekic.com/uploadfile/ic-mfg/2013921101028341.jpg)
74LS273 Original supply, US $ 0.80-1.00 , Logic ICs, [TI] Texas
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74LS20 Datasheet - Dual 4-Input NAND Gate - Motorola
IC 74LS02 TTL LS series QUAD 2-INPUT NOR GATE DIP14 vikiwat
![74LS139 Original supply, US $ 0.0001-5 , [TI] Texas Instruments](https://i2.wp.com/www.seekic.com/uploadfile/ic-mfg/2011123002319335.jpg)
74LS139 Original supply, US $ 0.0001-5 , [TI] Texas Instruments
