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
What are the key features of SN74S157NS?
- 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
What is SN74S157NS used for?
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) |
Where can I find the SN74S157NS datasheet?
SN74S157NS Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74S157NS?
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.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
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.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit