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SN74157N
- Fabricante
- Mfr. Parte #SN74157N
- Paquete PDIP-16
- Hoja de datos
- En stock4176
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Especificaciones
| Mounting Style | Through Hole |
| Supply Voltage - Min | 4.75 V |
| Supply Voltage - Max | 5.25 V |
| Minimum Operating Temperature | 0 C |
| Maximum Operating Temperature | + 70 C |
| Brand | Texas Instruments |
| Product | Decoders / Demultiplexers |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers |
| Subcategory | Logic ICs |
| Operating Supply Voltage | 5 V |
| Width | 6.35 mm |
| Height | 4.57 mm |
| Technology | Bipolar |
| Logic Family | 7400 |
| Number of Input Lines | 2 Input |
| Number of Output Lines | 1 Output |
| Propagation Delay Time | 14 ns at 5 V |
| Function | Multiplexer |
| Length | 19.3 mm |
| Logic Type | Data Selectors/Multiplexers |
| Series | SN74157 |
| Packaging | Tube |
| High Level Output Current | - 800 uA |
| Low Level Output Current | 16 mA |
| Number of Circuits | 4 Circuit |
| Package/Case | PDIP-16 |
| Unit Weight | 1,628 g |
Descripción general
Description
Key features of the SN74157N include:
1. Inputs and Outputs: It has eight input lines (A1, A2, A3, A4 and B1, B2, B3, B4), a common select line (S), and four outputs (Y1, Y2, Y3, Y4).
2. Enable Input: It also includes an active-low enable input (G), which must be low for the device to operate.
3. Logic Levels: Compatible with TTL logic levels.
4. Package Type: Typically, it comes in a 16-pin DIP (Dual In-line Package).
5. Applications: Used in data routing, digital signal multiplexing, and implementing logic functions.
The SN74157N is valued for its simplicity, reliability, and ease of integration into digital systems, making it a staple in electronic design.
Features
1. Quadruple 2:1 Multiplexer: It has four independent 2-input multiplexers, allowing selected data from two sources to be routed to four outputs.
2. Select Input: A single select line (S) determines which data input (A or B) is connected to the output.
3. Enable Pin: The device includes an active-low enable input (G), which allows the outputs to be disabled.
4. High-Speed Operation: Designed for fast switching, suitable for high-performance operations.
5. TTL Compatible: The SN74157N is compatible with TTL logic levels, making it easy to integrate into TTL-based systems.
6. Standard Logic Family: Part of the 74LS series, known for low power consumption and high noise immunity.
7. Package Type: Typically comes in a 16-pin DIP package.
8. Temperature Range: Operates within a standard commercial temperature range.
These features make the SN74157N suitable for applications requiring multiplexing capabilities, such as data routing and selection in digital circuits.
Package
Pinout
1. Pins 1, 3, 4, 7: Data inputs from source A (1A, 2A, 3A, 4A respectively).
2. Pins 2, 5, 6, 14: Data inputs from source B (1B, 2B, 3B, 4B respectively).
3. Pins 9, 11, 12, 15: Outputs corresponding to each multiplexer (Y1, Y2, Y3, Y4 respectively).
4. Pin 10: Select input (S), used to choose between input sources A or B for the output.
5. Pin 13: Enable input (G), active low; the outputs are active when this pin is low.
6. Pin 8: Ground (GND).
7. Pin 16: Positive supply voltage (VCC).
The SN74157N facilitates the selection and routing of data signals, making it useful in digital circuits for tasks like data routing, switching, and selection.
Manufacturer
Application
Equivalent
1. NTE74157
2. Fairchild 74LS157
3. ON Semiconductor MC74HC157A
4. Texas Instruments CD74HC157
5. Philips 74HCT157
These chips perform similar functions as the SN74157N and may vary in logic family and specific characteristics like power consumption or speed, so always check the datasheet for compatibility.
Envío
Métodos de envíoNosotros
ofrecer servicios de envío globales a través de DHL, FedEx, TNT, UPS, o cualquier otro expediente de su elección.
Referencia de tarifas de envío (DHL/FedEx):
DHL: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 2-5 días hábiles.
FedEx: El costo de envío oscila entre $25-$40 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
UPS: El costo de envío oscila entre $25-$45 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
TNT: El costo de envío oscila entre $25-$65 (0.5kg), con un tiempo de entrega estimado de 3-7 días hábiles.
EMS: El costo de envío oscila entre $30-$50 (0.5kg), con un plazo de entrega estimado de 7-15 días hábiles.
Correo aéreo registrado: El costo de envío es de $2-$4 (0.1kg), con un tiempo de entrega estimado de 5-20 días hábiles.
Pagos
Payment Methods
El plazo de pago es 100% prepagado.
Actualmente, solo aceptamos los siguientes métodos de pago:
1. de PayPal
2. Tarjeta de crédito/débito
3. Transferencia bancaria
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