SN74AS257D
| Parameters | |
|---|---|
| Factory Lead Time | 1 Week |
| Lifecycle Status | ACTIVE (Last Updated: 2 days ago) |
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.154, 3.90mm Width) |
| Number of Pins | 16 |
| Weight | 141.690917mg |
| Operating Temperature | 0°C~70°C |
| Packaging | Tube |
| Series | 74AS |
| JESD-609 Code | e4 |
| Pbfree Code | yes |
| Part Status | Active |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Terminations | 16 |
| Type | Multiplexer |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Technology | TTL |
| Voltage - Supply | 4.5V~5.5V |
| Terminal Position | DUAL |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 260 |
| Number of Functions | 4 |
| Supply Voltage | 5V |
| Base Part Number | 74AS257 |
| Pin Count | 16 |
| Number of Outputs | 1 |
| Operating Supply Voltage | 5V |
| Circuit | 4 x 2:1 |
| Power Supplies | 5V |
| Number of Channels | 4 |
| Load Capacitance | 50pF |
| Power Dissipation | 1.3W |
| Number of Bits | 2 |
| Propagation Delay | 6 ns |
| Family | AS |
| Number of Inputs | 8 |
| Output Characteristics | 3-STATE |
| Current - Output High, Low | 15mA 48mA |
| Supply Type | Single |
| Bandwidth | 125MHz |
| Output Polarity | TRUE |
| Voltage Supply Source | Single Supply |
| Independent Circuits | 1 |
| Height | 1.75mm |
| Length | 9.9mm |
| Width | 3.91mm |
| Thickness | 1.58mm |
| Radiation Hardening | No |
| REACH SVHC | No SVHC |
| RoHS Status | ROHS3 Compliant |
| Lead Free | Lead Free |
SN74AS257D Overview
For the purpose of saving board space, digital switch is included in the 16-SOIC (0.154, 3.90mm Width).Tube represents its packaging.In terms of mounting, digital switch ic uses the method of Surface Mount.For the analog part of the multiplexers, an IC Multiplexer is used.By keeping the operating temperature at 0°C~70°C, turn signal switch will not be affected by external factors.Using a 4.5V~5.5V supply voltage provides digital controlled switch's superior flexibility for designers.Multiplexers of the 74AS series can be used in a wide range of applications.Its basic configuration includes terminations in the 16 range.The base part number is 74AS257, which is also useful when looking up signal switch's related components.The voltage supplied for multiplexer's system is 5V.multiplexer's systemThis turn signal switch has a total of 16 component pins.A conductor terminates at GULL WING.The supply type of this multiplexer ic is Single.A total of 16 pins are configured on this board.It is positioned in the direction of Surface Mount.The logic switch is included into the family of AS.In the signal multiplexer, there are 2 bits available.During mux switch's normal operation, 5V is provided with a power supply.As a result, the turn signal switch consists of 1 outputs.The performance of the multiplexers of a system can be reliably achieved with a supply voltage of 5V.There are 8 inputs provided in this multiplexer.For transmission, there are 4 channels in the turn signal switch's circuit.
SN74AS257D 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
SN74AS257D Applications
There are a lot of Texas Instruments SN74AS257D Signal Switches / Multiplexers / Decoders applications.
- Memory system of computers
- Encrypted communications system
- Data demultiplexing
- CPU memory location identification
- D/A converters
- Electronics industry
- Data-routing applications
- To select different task for memory in microprocessor memory systems
- Logic gates for other digital devices
- Code conversion
