SN74AS257DR
| 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
