Overview
The SN74HC157PWR is a quadruple 2-line to 1-line data selector/multiplexer produced by Texas Instruments. This device is part of the 74HC series and is designed for high-speed silicon gate CMOS applications. It contains four independent 2:1 multiplexers, making it an excellent choice for multiplexing and data routing in various electronic systems.
The device operates asynchronously, with each output (Y) being equal to the input selected by the address input (A/B). The strobe (G) input forces all Y outputs low, regardless of the state of other inputs, providing a simple and effective way to control data flow.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 2 to 6 | V |
| Operating Temperature | -40 to 85 | °C |
| Propagation Delay (tpd) | 11 to 32 | ns |
| Transition Time (tt) | 6 to 21 | ns |
| Output Drive Current | ±7.8 | mA |
| Input Current | ±0.1 | μA |
| Power Consumption (ICC) | 8 to 160 | μA |
| Package Type | 16-TSSOP | |
| Package Dimensions | 5.00 mm × 4.40 mm |
Key Features
- Wide operating voltage range of 2V to 6V.
- Outputs can drive up to 15 LSTTL loads.
- Low power consumption, with a maximum ICC of 160µA.
- Typical propagation delay of 11ns.
- ±6mA output drive at 5V.
- Low input current of 1µA max.
- Standard CMOS inputs with high impedance.
- Surface mount package (16-TSSOP) for easy integration.
Applications
The SN74HC157PWR is suitable for a variety of applications, including:
- Multiplexing and data routing in digital systems.
- Signal switching and selection in communication systems.
- Data processing and transmission in computer systems.
- Control and automation systems requiring high-speed data selection.
- Embedded systems and IoT devices needing efficient data multiplexing.
Q & A
- What is the operating voltage range of the SN74HC157PWR?
The operating voltage range is from 2V to 6V.
- How many multiplexers are included in the SN74HC157PWR?
The device contains four independent 2:1 multiplexers.
- What is the typical propagation delay of the SN74HC157PWR?
The typical propagation delay is 11ns.
- What is the maximum output drive current of the SN74HC157PWR?
The maximum output drive current is ±7.8mA.
- What type of package does the SN74HC157PWR come in?
The device comes in a 16-TSSOP package.
- What are the dimensions of the 16-TSSOP package?
The package dimensions are 5.00 mm × 4.40 mm.
- What is the operating temperature range of the SN74HC157PWR?
The operating temperature range is from -40°C to 85°C.
- How much power does the SN74HC157PWR consume?
The maximum power consumption (ICC) is 160µA.
- What is the function of the strobe (G) input in the SN74HC157PWR?
The strobe (G) input forces all Y outputs low, regardless of the state of other inputs.
- Is the SN74HC157PWR RoHS compliant?
