Datasheet Texas Instruments SN74LS257BN — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | SN74LS257B |
| Numero de parte | SN74LS257BN |
Selectores / multiplexores de datos cuádruples de 2 líneas a 1 línea con salidas de 3 estados 16-PDIP 0 a 70
Hojas de datos
Quadruple 2-Line To 1-Line Data Selectors/Multiplexers datasheet
PDF, 989 Kb, Archivo publicado: marzo 1, 1988
Extracto del documento
Precios
Estado
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | No |
Embalaje
| Pin | 16 |
| Package Type | N |
| Industry STD Term | PDIP |
| JEDEC Code | R-PDIP-T |
| Package QTY | 25 |
| Carrier | TUBE |
| Device Marking | SN74LS257BN |
| Width (mm) | 6.35 |
| Length (mm) | 19.3 |
| Thickness (mm) | 3.9 |
| Pitch (mm) | 2.54 |
| Max Height (mm) | 5.08 |
| Mechanical Data | Descargar |
Paramétricos
| Bandwidth | 35 MHz |
| Bits | 2 |
| Number of Channels | 4 |
| Configuration | 2:1 |
| Digital input leakage(Max) | 5 uA |
| ESD Charged Device Model | 0.75 kV |
| ESD HBM | 2 kV |
| F @ Nom Voltage(Max) | 35 Mhz |
| Function | Encoder/Multiplexer |
| ICC @ Nom Voltage(Max) | 19 mA |
| Operating Temperature Range | 0 to 70 C |
| Output Drive (IOL/IOH)(Max) | 24/-2.6 mA |
| Package Group | PDIP |
| Package Size: mm2:W x L | See datasheet (PDIP) PKG |
| Rating | Catalog |
| Schmitt Trigger | No |
| Technology Family | LS |
| Type | 3-State Output |
| VCC(Max) | 5.25 V |
| VCC(Min) | 4.75 V |
| Voltage(Nom) | 5 V |
| tpd @ Nom Voltage(Max) | 21 ns |
Plan ecológico
| RoHS | Obediente |
| Pb gratis | Sí |
Notas de aplicación
- Designing with the SN54/74LS123 (Rev. A)PDF, 118 Kb, Revisión: A, Archivo publicado: marzo 1, 1997
The Texas Instruments (TI) SN54/74LS123 dual retriggerable monostable multivibrator is a one-shot device capable of verylong output pulses and up to 100% duty cycle. The ?LS123 also features dc triggering from gated low-level active A andhigh-level active B inputs and provides a clear input that terminates the output pulse of any predetermined time independentof timing components R ext and
Linea modelo
Serie: SN74LS257B (8)
Clasificación del fabricante
- Semiconductors > Switches and Multiplexers > Buffered Encoders and Decoders