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SN74AS257DR

16 Terminations4.5V~5.5V 16 Pin 74AS257 Signal switch74AS Series 1 Outputs4 Functions


  • Manufacturer: Texas Instruments
  • Nocochips NO: 815-SN74AS257DR
  • Package: 16-SOIC (0.154, 3.90mm Width)
  • Datasheet: PDF
  • Stock: 168
  • Description: 16 Terminations4.5V~5.5V 16 Pin 74AS257 Signal switch74AS Series 1 Outputs4 Functions(Kg)

Details

Tags

Parameters
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 16-SOIC (0.154, 3.90mm Width)
Number of Pins 16
Operating Temperature 0°C~70°C
Packaging Tape & Reel (TR)
Series 74AS
Pbfree Code yes
Part Status Obsolete
Moisture Sensitivity Level (MSL) 1 (Unlimited)
Number of Terminations 16
Type Multiplexer
Packing Method TAPE AND REEL
Technology TTL
Voltage - Supply 4.5V~5.5V
Terminal Position DUAL
Terminal Form GULL WING
Peak Reflow Temperature (Cel) NOT SPECIFIED
Number of Functions 4
Supply Voltage 5V
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Base Part Number 74AS257
Pin Count 16
Number of Outputs 1
Qualification Status Not Qualified
Operating Supply Voltage 5V
Circuit 4 x 2:1
Power Supplies 5V
Load Capacitance 50pF
Power Dissipation 1.3W
Number of Bits 4
Propagation Delay 6 ns
Family AS
Logic Function Mux
Number of Inputs 8
Output Characteristics 3-STATE
Current - Output High, Low 15mA 48mA
Supply Type Single
Output Polarity TRUE
Power Supply Current-Max (ICC) 30.6mA
Number of Input Lines 2
Voltage Supply Source Single Supply
Independent Circuits 1
Length 9.9mm
Width 3.9mm
RoHS Status ROHS3 Compliant

SN74AS257DR Overview


In order to save board space, digital switch is located in the 16-SOIC (0.154, 3.90mm Width).As a result, it is packaged in the way of Tape & Reel (TR).Mounting is performed using Surface Mount.For the analog part of the multiplexers, an IC Multiplexer is used.When the operating temperature is kept at 0°C~70°C, turn signal switch will not be susceptible to external factors.When digital controlled switch operates at 4.5V~5.5V, designers have superior flexibility.The multiplexers can be used for a wide range of applications since they are members of 74AS series.The basic configuration of this system includes 16 terminations.As its base part number is 74AS257, logic switch can also be used to find its related parts.The voltage supplied for multiplexer's system is 5V.multiplexer's systemA component pin count of 16 can be found on this turn signal switch.It is the end of conductors that is represented by GULL WING.There is a supply type of Single employed as part of this supply.There are 16 pins on it.As you can see, it is mounted in the direction of Surface Mount.The logic switch is a member of the AS family.Signal multiplexer consists of 4 bits.There is a power supply provided for the mux switch's normal operation of 5V.In order for the turn signal switch to work, there are 1 outputs.Supply voltages of 5V can provide reliable performance of the multiplexers.This multiplexer has a total of 8 inputs.The switches package is packaged in a way which is consistent with TAPE AND REEL.On the multiplexers, 2 input lines are provided for accepting voltage levels.

SN74AS257DR Features


Supplied in the 16-SOIC (0.154, 3.90mm Width) package
Adopting a supply type of Single
Power supplies of 5V
Operating with the supply voltage of 5V
2 input lines

SN74AS257DR Applications


There are a lot of Texas Instruments SN74AS257DR Signal Switches / Multiplexers / Decoders applications.

  • Medium scale TV wall
  • Frequency multiplexing system
  • Data collection system
  • Data distribution
  • D/A converters
  • Logic gates for other digital devices
  • Data transfer
  • Data communication
  • Telephone network
  • Automatic health monitoring systems

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