SN74S157NS Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74S157NS is a quadruple 2-to-1 data selector/multiplexer from Texas Instruments in the Schottky TTL (74S) logic family. It selects one of two 4-bit data sources based on a common select input and features non-inverting outputs with a strobe enable. Available in a 16-pin SOIC package, it is used in high-speed digital data routing and switching applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74S157NS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Quadruple 2-to-1 multiplexer with common select and strobe inputs, enabling efficient 4-bit data source selection in high-speed TTL logic systems
- Schottky TTL (74S) family provides faster propagation delays than standard TTL, suitable for high-frequency digital signal routing
- 16-pin SOIC package offers a compact surface-mount footprint for modern PCB designs requiring legacy 74S-family logic compatibility
Applications
The SN74S157NS is used in digital multiplexing circuits where one of two 4-bit parallel data inputs must be routed to a common output bus. It is suitable for data selectors, bus arbitration, and address multiplexing in microprocessor and FPGA-based designs. Its Schottky TTL speed makes it effective for high-frequency digital switching in communications, computing, and industrial control systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74S157NS:
Multiplexer, S Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16
Multiplexer, S Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16
Multiplexer, S Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16
Frequently Asked Questions
What function does the SN74S157NS perform?
The SN74S157NS is a quadruple 2-to-1 data selector/multiplexer that routes one of two 4-bit input data sources to the output based on a single common SELECT line, with a STROBE input to enable or disable the outputs.
What logic family does the SN74S157NS belong to?
The SN74S157NS belongs to the 74S (Schottky TTL) logic family, which offers faster propagation delays compared to standard 74 TTL devices due to the use of Schottky-clamped transistors, making it suitable for high-speed applications.
What package is the SN74S157NS available in?
The SN74S157NS is available in a 16-pin SOIC (Small Outline IC) package, which is a widely used surface-mount package providing a compact footprint for PCB designs requiring TTL-compatible multiplexer functions.
What are typical applications for the SN74S157NS?
Typical applications include data bus multiplexing, address selection, digital signal routing in microprocessor systems, and bus arbitration in high-speed computing and communications hardware where 4-bit parallel data switching is needed.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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