Functional Diagram June 1997 COMPLETE DATA SHEET COMING SOON

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Functional Diagram June 1997 COMPLETE DATA SHEET COMING SOON

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CD54HC257/3A CD54HCT257/3A
Functional Diagram
June 1997
COMPLETE DATA SHEET COMING SOON! Quad 2-Input Multiplexer, Three-State
Description
CD54HC257/3A CD54HCT257/3A quad 2-input multiplexers which select four bits data from sources under control common Select input (S). Output Enable input (OE) active LOW. When HIGH, outputs high impedance state regardless other input conditions. Moving data from groups registers four common output busses common CD54HC/HCT257/3A. state Select input determines particular register from which data comes. also used function generator.
INPUT LOAD TABLE INPUT Data NOTE: Unit load limit specified Electrical Specifications Table, e.g., 360µA +25oC. UNIT LOAD (NOTE 0.95
Absolute Maximum Ratings
Supply Voltage, Voltages Referenced -0.5V +7.0V Input Voltage Range, Inputs, -0.5V +0.5V Output Voltage Range, Outputs, VOUT -0.5V +0.5V Input Diode Current, -0.5V 0.5V .±20mA Output Diode Current, -0.5V 0.5V .±20mA Drain Current, Output, -0.5V 0.5V Standard Output .±25mA Driver Output. .±35mA Current, Standard Output .±50mA Driver Output. .±70mA Power Dissipation Package, -55oC +100oC (Package 500mW +100oC +125oC (Package Derate Linearly 8mW/ 300mW Operating Temperature Range, Package Type -55oC +125oC Storage Temperature, TSTG -65oC +150oC Lead Temperature (During Soldering) Distance 1/16in. 1/32in. (1.59mm 0.79mm) From Case +265oC Unit Inserted Into Board (Min Thickness 1/16in., 1.59mm) With Solder Contacting Lead Tips Only. +300oC
CAUTION: Stresses above those listed "Absolute Maximum Ratings" cause permanent damage device. This stress only rating operation device these other conditions above those indicated operational sections this specification implied.
Recommended Operating Conditions
Supply Voltage Range, Full Package Temperature Range CD54HC Types CD54HCT Types .4.5V 5.5V Input Output Voltage, VIN, VOUT Operating Temperature Range, -55oC +125oC Input Rise Fall Times, 1000ns 4.5V 500ns 400ns
CAUTION: These devices sensitive electrostatic discharge. Users should follow proper I.C. Handling Procedures. Copyright
Harris Corporation 1994
File Number
3813

Functional Diagram June 1997 COMPLETE DATA SHEET COMING SOON

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