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SN74LVC157A ,Quadruple 2-Line To1-Line Data Selector / MultiplexerLOGIC DIAGRAM (POSITIVE LOGIC)21A41Y31B52A72Y62B113A93Y103B144A124Y134B15G1A/BPin numbers shown are ..
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SN74ALS38B-SN74ALS38BD-SN74ALS38BDR-SN74ALS38BDRG4-SN74ALS38BN-SN74ALS38BNSR
Quad 2-input positive-NAND buffers with open collector outputs
descriptionThese devices contain four independent 2-input
positive-NAND buffers with open-collector
outputs. They perform the Boolean functions
Y = A • B or Y = A + B in positive logic. The
open-collector outputs require pullup resistors to
perform correctly. These outputs may be
connected to other open-collector outputs to
implement active-low wired-OR or active-high
wired-AND functions. Open-collector devices
often are used to generate higher VOH levels.
The SN54ALS38B is characterized for operation
over the full military temperature range of –55°C
to 125°C. The SN74ALS38B is characterized for
operation from 0°C to 70°C.
FUNCTION TABLE
(each gate)
logic symbol† logic diagram (positive logic)1A1B 42A2B3A 103B4A 134B 11A1B2A2B3A3B4A4B36811†This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
GND
SN54ALS38B... FK PACKAGE
(TOP VIEW)1ANC3A4B
NC – No internal connection
GND
