Quad 2-Input Data Selectors/Multiplexer
SL74HC157
Quad 2-Input Data Selectors/Multiplexer
High-Performance Silicon-Gate CMOS
The SL74HC157 is identical in pino...
Description
SL74HC157
Quad 2-Input Data Selectors/Multiplexer
High-Performance Silicon-Gate CMOS
The SL74HC157 is identical in pinout to the LS/ALS157. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL 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 High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION SL74HC157N Plastic SL74HC157D SOIC TA = -55° to 125° C for all packages
PIN ASSIGNMENT LOGIC DIAGRAM
FUNCTION TABLE
Inputs Output Enable PIN 16 =VCC PIN 8 = GND H L L Select X L H Outputs Y0-Y3 L A0-A3 B0-B3
X=don’t care A0-A3,B0-B3=the levels of the respective Data-Word Inputs
SLS
System Logic Semiconductor
SL74HC157
MAXIMUM RATINGS*
Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
*
Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package)
Value -0.5 to +7.0 -1.5 to VCC +1.5 -0.5 ...
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