MC74HC157ADR2 ,Data Selector/Multiplexer 2-Input QMAXIMUM RATINGS*ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ SymbolÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ParameterÎÎÎÎÎ ValueÎÎÎ UnitThis d ..
MC74HC157ADT ,Quad 2-Input Data Selectors/MultiplexersMAXIMUM RATINGS*ÎÎÎÎÎÎ Symbol ParameterÎÎÎÎÎ ValueÎÎÎ UnitThis device contains protectioncircuitry ..
MC74HC157ADTR2 ,Data Selector/Multiplexer 2-Input QELECTRICAL CHARACTERISTICS (Voltages Referenced to GND)ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎGuaran ..
MC74HC157AF ,Quad 2-Input Data Selectors/Multiplexersresistors, they are compatible with LSTTL outputs.MARKINGThis device routes 2 nibbles (A or B) to a ..
MC74HC157AFEL ,Data Selector/Multiplexer 2-Input QMaximum Ratings are those values beyond which damage to the device may occur.ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ..
MC74HC157AFL1 ,Quad 2-Input Data Selectors/MultiplexersMAXIMUM RATINGS*ÎÎÎÎÎÎ Symbol ParameterÎÎÎÎÎ ValueÎÎÎ UnitThis device contains protectioncircuitry ..
MCR908JK3ECDWE , The following revision history table summarizes changes contained in this document. For your convenience, the page number designators have been linked to the appropriate location.
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MC74HC157A-MC74HC157ADR2-MC74HC157ADTR2-MC74HC157AFEL
Data Selector/Multiplexer 2-Input Q
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High–Performance Silicon–Gate CMOSThe MC74HC157A is identical in pinout to the LS157. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL 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
noninverted form. A high level on the Output Enable input sets all four
Y outputs to a low level. Output Drive Capability: 10 LSTTL Loads Outputs Directly Interface to CMOS, NMOS, and TTL Operating V oltage Range: 2.0 to 6.0 V Low Input Current: 1.0 μA High Noise Immunity Characteristic of CMOS Devices In Compliance with the Requirements Defined by JEDEC Standard
No. 7A Chip Complexity: 82 FETs or 20.5 Equivalent Gates
LOGIC DIAGRAMSELECT
OUTPUT
ENABLE
DATA
OUTPUTS
NIBBLE
A INPUTS
NIBBLE
B INPUTS
PIN 16 = VCC
PIN 8 = GND
FUNCTION TABLEX = don’t care
A0 – A3, B0 – B3 = the levels of the
respective Data–Word Inputs.
