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TI SN74LS257BDR
| Manufacturer | |
| MPN | SN74LS257BDR |
| LCSC Part # | C7754 |
| Packaging | SOIC-16 |
| Customer # | |
| Key Attributes | Three-State Outputs Interface Directly with System Bus |
| Datasheet | TI SN74LS257BDR |
| RoHS Compliance | 2 documents available |
| Alternative Parts | 6 |
Products Specifications
All
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Logic/Signal Switches, Multiplexers, Decoders | |
| Manufacturer | TI | |
| Packaging | SOIC-16 | |
| Type | Multiplexer | |
| Series | 74LS | |
| Number of Channels | 8/4 | |
| Voltage - Supply | 4.75V~5.25V | |
| Operating Temperature | 0℃~+70℃ | |
| Quiescent Current | 13mA | |
| Current - Output High(IOH) | 2.6mA | |
| Propagation Delay | 15ns@5V,45pF | |
| Function | Output enable high-impedance;Tri-state output | |
| Current - Output Low(IOL) | 24mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Logic/Signal Switches, Multiplexers, Decoders | |
| Manufacturer | TI | |
| Packaging | SOIC-16 | |
| Type | Multiplexer | |
| Series | 74LS | |
| Number of Channels | 8/4 | |
| Voltage - Supply | 4.75V~5.25V |
| Type | Description | |
|---|---|---|
| Operating Temperature | 0℃~+70℃ | |
| Quiescent Current | 13mA | |
| Current - Output High(IOH) | 2.6mA | |
| Propagation Delay | 15ns@5V,45pF | |
| Function | Output enable high-impedance;Tri-state output | |
| Current - Output Low(IOL) | 24mA |
Help & FeedbackShow similar products (0) >
Introduction
AI Translation
These devices are designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G(overline)) is at a high logic level.
Features
AI Translation
- Three-state outputs for direct system bus interface
- LS257B and LS258B sink current capability is three times that of the original LS257 and LS258
- Pin assignments compatible with SN54LS157, SN74LS157, SN54S157, SN74S157, SN54LS158, SN74LS158, SN54S158, SN74S158
- Bus interface for multiple data sources in high-performance systems
- Maximum supply voltage Vcc: 7V
- Maximum input voltage: 7V for LS257B/LS258B circuits, 5.5V for S257/S258 circuits
- Maximum off-state output voltage: 5.5V
Applications
AI Translation
- Four-channel signal multiplexing for bus-structured systems
- Multi-source bus connection for high-performance systems
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| Qty | Unit Price(Reference Only) | Total Amount |
|---|---|---|
| 1+ | $ 1.8671 | $ 1.87 |
| 10+ | $ 1.5797 | $ 15.80 |
| 30+ | $ 1.3999 | $ 42.00 |
| 100+ | $ 1.2155 | $ 121.55 |
| 500+ | $ 1.1326 | $ 566.30 |
| 1,000+ | $ 1.0972 | $ 1097.20 |
Standard Packaging2000/Full Reel | ||
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Products Specifications
All
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Logic/Signal Switches, Multiplexers, Decoders | |
| Manufacturer | TI | |
| Packaging | SOIC-16 | |
| Type | Multiplexer | |
| Series | 74LS | |
| Number of Channels | 8/4 | |
| Voltage - Supply | 4.75V~5.25V | |
| Operating Temperature | 0℃~+70℃ | |
| Quiescent Current | 13mA | |
| Current - Output High(IOH) | 2.6mA | |
| Propagation Delay | 15ns@5V,45pF | |
| Function | Output enable high-impedance;Tri-state output | |
| Current - Output Low(IOL) | 24mA |
| Type | Description | |
|---|---|---|
| Category | Integrated Circuits (ICs)/Logic/Signal Switches, Multiplexers, Decoders | |
| Manufacturer | TI | |
| Packaging | SOIC-16 | |
| Type | Multiplexer | |
| Series | 74LS | |
| Number of Channels | 8/4 | |
| Voltage - Supply | 4.75V~5.25V |
| Type | Description | |
|---|---|---|
| Operating Temperature | 0℃~+70℃ | |
| Quiescent Current | 13mA | |
| Current - Output High(IOH) | 2.6mA | |
| Propagation Delay | 15ns@5V,45pF | |
| Function | Output enable high-impedance;Tri-state output | |
| Current - Output Low(IOL) | 24mA |
Help & FeedbackShow similar products (0) >
Introduction
AI Translation
These devices are designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G(overline)) is at a high logic level.
Features
AI Translation
- Three-state outputs for direct system bus interface
- LS257B and LS258B sink current capability is three times that of the original LS257 and LS258
- Pin assignments compatible with SN54LS157, SN74LS157, SN54S157, SN74S157, SN54LS158, SN74LS158, SN54S158, SN74S158
- Bus interface for multiple data sources in high-performance systems
- Maximum supply voltage Vcc: 7V
- Maximum input voltage: 7V for LS257B/LS258B circuits, 5.5V for S257/S258 circuits
- Maximum off-state output voltage: 5.5V
Applications
AI Translation
- Four-channel signal multiplexing for bus-structured systems
- Multi-source bus connection for high-performance systems
C7754 EasyEDA Library
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
| Type | Details |
|---|---|
| RoHS | ROHS3 Compliant |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Alternative Parts
| MPN | Manufacturer | Packaging | Availability | Unit Price | ||
|---|---|---|---|---|---|---|
| SN74F257DR | TI | SOIC-16 | 34 | $ 0.8255 | ||
| SN74F258D | TI | SOIC-16 | 19 | $ 1.2908 | ||
| 74HCT157D,653 | Nexperia | SOIC-16 | 39 | $ 0.2393 | ||
| SN74F157ADR | TI | SOIC-16 | 1 | $ 0.4228 | ||
| XL74LS157 | XINLUDA | SOP-16 | 885 | $ 0.1418 | ||
| 74HCT257D,653 | Nexperia | SO-16 | 0 | $ 0.5526 |