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KK74AC157

Part Number	KK74AC157
Manufacturer	KODENSHI KOREA
Description	Quad 2-Input Data Selector/Multiplexer High-Speed Silicon-Gate CMOS
Published	Feb 19, 2010
Detailed Description	TECHNICAL DATA www.DataSheet4U.com KK74AC157 Quad 2-Input Data Selector/Multiplexer High-Speed Silicon-Gate CMOS The ...
Datasheet	KK74AC157 PDF File

Overview

TECHNICAL DATA www.
DataSheet4U.
com KK74AC157 Quad 2-Input Data Selector/Multiplexer High-Speed Silicon-Gate CMOS The KK74AC157 is identical in pinout to the LS/ALS157, HC/HCT157.
The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALS outputs.
This device routes 2 nibbles (A or B) to a single port (Y) as determined by the Select input.
The data is presented at the outputs in noninvertered form.
A high level on the Output Enable input sets all four Y outputs to a low level.
• Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 2.
0 to 6.
0 V • Low Input Current: 1.
0 µA; 0.
1µA @ 25°C • High Noise Immunity Characteristic of CMOS Devices • Outputs Source/Sink 24 mA ORDERING INFORMATION KK74AC157N Plastic KK74AC157D SOIC TA = -40° to 85° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM FUNCTION TABLE Inputs PIN 16 =VCC PIN 8 = GND Output Enable H L L Select X L H Outputs Y0-Y3 L A0-A3 B0-B3 X=don’t care...

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