Texas Instruments SN74HCT157 Quad 2-to-1 Line Data Selectors/Muxes
Texas Instruments SN74HCT157 Quad 2-to-1 Line Data Selectors/Multiplexers contain drivers and inverters to supply full data selection to the four output gates. A separate strobe (/G) input is provided in the Texas Instruments SN74HCT157. A 4-bit word is selected from one of two sources and is routed to the four outputs.
Features
- Operating voltage range of 4.5V to 5.5V
- High-current outputs drive up to 15 LSTTL loads
- Typical tpd = 15ns
- Low power consumption, 80µA (max.) ICC
- ±6mA output drive at 5V
- A low input current of 1µA (max.)
- Inputs are TTL-voltage compatible
- Buffered inputs and outputs
Applications
- Data selection
- Signal multiplexing
- Data routing and switching
- Microcontroller data routing
- Industrial automation and control
- Automotive systems
- Communication systems
Additional Resources
- Application Note: Designing With Logic
- Application Note: Implications of Slow or Floating CMOS Inputs
- Application Note: Understanding and Interpreting Standard-Logic Data Sheets
- Application Note: Using High-Speed CMOS and Advanced CMOS in Systems With Multiple VCC
- Selection Guide: Logic Guide
- User Guide: LOGIC Pocket Data Book
Logic Diagram (Positive Logic)
Development Tool
Texas Instruments 14-24-LOGIC-EVM Logic Evaluation Module (EVM)
Generic evaluation module developed to support any TI logic leaded device in a 14 to 24 pin count.
Published: 2025-05-05
| Updated: 2025-05-08