SN74AS258NS Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The SN74AS258NS is a quad 2-to-1 multiplexer with 3-state outputs from Texas Instruments in the Advanced Schottky (AS) logic family. It selects between two 4-bit data buses and features active-low output enable for bus isolation in DIP-16 package. Used in data routing, bus multiplexing, and address selection in high-speed digital systems.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- SN74AS258NS Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74AS258NS?
- Quad 2-to-1 data multiplexer with 4 independent channels
- 3-state outputs for direct bus sharing without contention
- Advanced Schottky (AS) technology for high-speed operation with propagation delays under 10 ns
- Active-low output enable (/OE) for simple bus isolation control
- 16-pin DIP package for through-hole prototyping and legacy board designs
What is SN74AS258NS used for?
The SN74AS258NS is used in digital systems for multiplexing between two 4-bit data sources on a shared output bus, enabling flexible data routing in address decoders, microprocessor systems, and FPGA peripheral interfaces. Its 3-state output capability allows multiple SN74AS258NS devices to share a common bus without signal contention when properly controlled by the active-low enable pin. The AS logic family speed makes it suitable for backplane signal routing and high-speed TTL logic interfaces operating at 5 V supply.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the SN74AS258NS datasheet?
SN74AS258NS Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74AS258NS?
Compatible alternatives and drop-in replacements for SN74AS258NS:
Multiplexer, AS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16
Multiplexer, AS Series, 4-Func, 2 Line Input, 1 Line Output, True Output, TTL, PDSO16
Frequently Asked Questions
Which designs are a good fit for SN74AS258NS from Texas Instruments?
SN74AS258NS fits embedded electronics, industrial controls, instrumentation, and production repair builds that need 74A. Engineers should also check 258NS and the manufacturer datasheet before releasing the final PCB, module, or power tree.
How should engineers review assembly risk for SN74AS258NS?
Use the listed Dual-In-Line Packages information together with 258NS when checking PCB footprint, thermal clearance, solder process, and second-source constraints for at least 1 approved production build.
What should procurement confirm before ordering SN74AS258NS?
Confirm lifecycle status, traceability, and lot availability, then compare the required 4-bit against the approved BOM so sourcing does not substitute an incompatible part during 1 purchasing cycle.
Related Guides
STM32H725IGT3 Selection Guide: Memory, Package, Temperature, and Supply
Choose the right STM32H725 variant by comparing Flash, package, pin count, temperature grade, connectivity, and production requirements.
Aug 1, 2026
STM32H725IGT3 High-Performance MCU Design Guide
Design STM32H725IGT3 systems for reliable 550 MHz operation with practical power, clock, cache, DMA, PCB, ADC, and recovery guidance.
Jul 31, 2026
150141VS73100 Violet SMD LED Selection Guide: Color, Drive, and Sourcing
Select the 150141VS73100 by wavelength, brightness, drive current, 3528 fit, reliability, and traceable sourcing requirements.
Jul 31, 2026
STEF05SGR 5 V eFuse Protection Design Guide
Design a reliable 5 V STEF05SGR eFuse stage with current-limit math, capacitor sizing, thermal analysis, fault recovery, and PCB layout guidance.
Jul 30, 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