Overview
The SN74HC157DBR is a quadruple 2-line to 1-line data selector/multiplexer produced by Texas Instruments. This device is part of the 74HC series, known for its high-speed silicon gate CMOS technology. It is designed to select one of two data sources for each of its four channels, making it an excellent choice for multiplexing and data routing applications. The device operates asynchronously, with all channels controlled by the same address select (A/B) input and strobe (G) input. A high level at the strobe terminal forces all outputs low, providing a simple and effective way to manage data flow.
Key Specifications
| Parameter | Value |
|---|---|
| Package | 16-SSOP (0.209", 5.30mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Supply Voltage | 2V ~ 6V |
| Output Drive | ±6mA at 5V |
| Input Current | 1µA max |
| Power Consumption | 80µA max ICC |
| Propagation Delay (tpd) | Typical 11ns |
| Output Load Capability | Up to 15 LSTTL loads |
Key Features
- Wide operating voltage range of 2V to 6V
- Outputs can drive up to 15 LSTTL loads
- Low power consumption, 80µA max ICC
- Typical propagation delay of 11ns
- ±6mA output drive at 5V
- Low input current of 1µA max
Applications
The SN74HC157DBR is suitable for a variety of applications that require data multiplexing and routing. These include:
- Multiplexing and demultiplexing in digital systems
- Data routing in communication networks
- Control logic in embedded systems and IoT devices
- Signal switching in audio and video equipment
Q & A
- What is the operating voltage range of the SN74HC157DBR?
The operating voltage range is 2V to 6V. - What is the maximum output drive current at 5V?
The maximum output drive current at 5V is ±6mA. - How many channels does the SN74HC157DBR have?
The device has four 2-line to 1-line data selector/multiplexer channels. - What is the typical propagation delay of the SN74HC157DBR?
The typical propagation delay is 11ns. - What is the maximum power consumption of the SN74HC157DBR?
The maximum power consumption is 80µA ICC. - What is the operating temperature range of the SN74HC157DBR?
The operating temperature range is -40°C to 85°C. - What type of package does the SN74HC157DBR come in?
The device comes in a 16-SSOP package. - Can the SN74HC157DBR drive LSTTL loads?
Yes, it can drive up to 15 LSTTL loads. - How does the strobe input affect the outputs?
A high level at the strobe terminal forces all outputs low. - What is the maximum input current of the SN74HC157DBR?
The maximum input current is 1µA.
