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SN74LS257BDG4

SN74LS257BDG4

SN74LS257BDG4

Texas Instruments

16 Terminations 4.75 V ~ 5.25 V 16 Pin 74LS257 Signal switch 74LS Series 4 Functions Min 4.75V V Max 5.25V V

SOT-23

SN74LS257BDG4 Datasheet PDF

non-compliant

Technical Specifications

Parameter NameValue
TypeParameter
Mount Surface Mount
Package / Case SOIC
Mounting Type Surface Mount
Number of Pins 16
Supplier Device Package 16-SOIC
Weight 141.690917mg
Operating Temperature0°C ~ 70°C
Series 74LS
PackagingTube
JESD-609 Code e4
Part StatusActive
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 16
Type Multiplexer
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Max Operating Temperature70°C
Min Operating Temperature 0°C
Packing Method TUBE
Voltage - Supply 4.75 V ~ 5.25 V
Terminal Position DUAL
Terminal FormGULL WING
Peak Reflow Temperature (Cel) 260
Number of Functions 4
Supply Voltage 5V
Base Part Number 74LS257
Pin Count16
Circuit 4 x 2:1
Power Supplies5V
Temperature GradeCOMMERCIAL
Number of Channels 4
Max Supply Voltage5.25V
Min Supply Voltage4.75V
Propagation Delay15 ns
Family LS
Logic Function Multiplexer
Number of Inputs 8
Output Characteristics 3-STATE
Current - Output High, Low 2.6mA, 24mA
Supply Type Single
Bandwidth 35MHz
Output Polarity TRUE
High Level Output Current24mA
Low Level Output Current2.6mA
Number of Input Lines 2
Voltage Supply SourceSingle Supply
Independent Circuits 1
Number of Output Lines 1
Height 1.58mm
Length 9.9mm
Width 3.91mm
Radiation HardeningNo
RoHS StatusRoHS Compliant
Lead Free Lead Free
In-Stock:2506 items

SN74LS257BDG4 Product Details

SN74LS257BDG4 Overview


As a means of saving space, digital switch is provided in the SOIC.Tube represents its packaging.For mounting, digital switch ic uses the method Surface Mount.the multiplexers uses IC Multiplexer as the analog IC.A temperature of 0°C ~ 70°C will not leave the turn signal swturn signal switchch susceptible to external influences.With a supply voltage of 4.75 V ~ 5.25 V, designers have greater flexibility of digital controlled switch.Several applications are possible for 74LS series multiplexers.Its basic configuration includes terminations in the 16 range.The base part number is 74LS257, so you can find its logic switch related parts using that number.The multiplexer is supplied with 5V voltage.A component pin count of 16 is found on this turn signal switch.As a result, GULL WING represents the end of the conductors.This supply type employs Single.A total of 16 pins are configured on this board.The multiplexer ic is mounted in the direction of Surface Mount.The logic switch is a member of the LS family.For mux switch's normal operation, power supply 5V is provided.The multiplexer is equipped with 8 inputs.A TUBE packaging method is used in the switches.As a voltage level input, the multiplexers have 2 lines.As the signal source, there are 1 output lines.For transmission, there are 4 channels in the turn signal switch's circuit.In this case, operating this signal switch at 70°C is acceptable.Keeping the temperature of the multiplexer at 0°C is the minimum operating temperature.Device specifications specify 5.25V as the maximum supply voltage for the signal switches.Typical device specifications specify a voltage supply of 4.75V for the digital swith.

SN74LS257BDG4 Features


Supplied in the SOIC package
Adopting a supply type of Single
Power supplies of 5V
2 input lines
1 output lines


SN74LS257BDG4 Applications


There are a lot of Texas Instruments
SN74LS257BDG4 Signal Switches / Multiplexers / Decoders applications.


  • Transmission from the computer system of a satellite
  • Time division multiplexing system
  • Frequency multiplexing system
  • A/D converters
  • D/A converters
  • Implementing boolean functions with multiple variables
  • Data collection system
  • Audio transmission
  • Video transmission
  • Image transmission

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