Get a Sample
Request engineering samples to evaluate fit, validate alternatives, and keep design decisions moving before a larger order is placed.
Request evaluation samplesON SemiconductorIntegrated Circuits (ICs)Logic - Signal Switches, Multiplexers, DecodersON Semiconductor Logic - Signal Switches, Multiplexers, Decoders
74FST3257MNTWG Logic - Signal Switches, Multiplexers, Decoders by ON Semiconductor
74FST3257MNTWG is a Logic - Signal Switches, Multiplexers, Decoders model from ON Semiconductor, presented on TrustCompo for buyers who need clear sourcing and review context before RFQ. This listing sits in the Integrated Circuits (ICs) / Logic - Signal Switches, Multiplexers, Decoders product path. IC MUX/DEMUX QUAD 21 16QFN. TrustCompo combines the available model, brand, hierarchy, and specification details around 74FST3257MNTWG so buyers can move faster from review to quotation.
RoHS
Datasheet
Pictures are for reference only. Please contact us for the latest pictures.
Traceability and authenticity checks
Fast RFQ turnaround
Documentation support
Pre-shipment inspection review
Key specifications
Series
74FST
Min Quantity
1
Category
Integrated Circuits (ICs)Sub Category
Logic - Signal Switches, Multiplexers, DecodersDescription
IC MUX/DEMUX QUAD 21 16QFN
key Attributes
-
Datasheet
View 74FST3257MNTWG DatasheetTechnical document
Open The Official Datasheet
Review the latest datasheet for 74FST3257MNTWG from ON Semiconductor in a separate tab so engineers and buyers can check package, electrical characteristics, and application details without leaving this product page.
Why request a quote
Use the RFQ step to confirm the commercial and documentation details buyers usually need before placing an order.
RoHS, REACH, and lead-free documentation can be confirmed during RFQ
Traceability and Certificate of Conformance support available on request
Pre-shipment inspection report support for quality review
Trust signals
Globally recognized certifications
Visible certifications work best when they are paired with clear operational promises around traceability, handling, and inspection.
ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
Ordering workflow
Understand how to order and what policies support the purchase
Use this section to see the fastest ordering path and the policy pages buyers usually review before confirming a component order.
How to order this product
A simple B2B flow helps engineering and procurement teams move from part review to commercial confirmation.
1
Confirm part and quantity
Review the part number, package, key specs, and target quantity so the quote request reflects the exact sourcing scope your team needs.
2
Send RFQ or sample request
Use Quick Quote for commercial pricing or Request Sample when engineering validation is still in progress and a smaller evaluation quantity is needed.
3
Align delivery, payment, and documentation
Before final release, confirm stock timing, shipment method, payment arrangement, and any traceability or inspection documents required by your process.
Policies buyers usually check
These pages explain the operating rules around samples, shipping, payment, and quality support before you place the order.
Shipping & Delivery
Review shipping origin, carrier options, delivery methods, and the practical factors that affect transit timing for global component orders.
Review shipping detailsPayment Terms
Understand supported payment methods, invoice handling, quote currency, and the commercial boundaries used for international B2B orders.
Review payment termsQuality & Traceability Center
See how incoming inspection, outgoing verification, traceability support, certifications, and additional testing fit into our quality workflow.
Review quality controlsStructured product content
Review The Product The Way Buyers Actually Evaluate It
Review overview, detailed specifications, and related sourcing content in one structured flow without scanning separate oversized sections.
Product overview
Overview
Quad 2:1 Multiplexer/Demultiplexer Bus Switch
The ON Semiconductor 74FST3257 is a quad 2:1, high performance multiplexer/demultiplexer bus switch.
The device is CMOS TTL compatible when operating between 4 and 5.5 Volts.
The device exhibits extremely low RON and adds nearly zero propagation delay.
The device adds no noise or ground bounce to the system.
Features
• RON < 4Ω Typical
• Less Than 0.25 ns−Max Delay Through Switch
• Nearly Zero Standby Current
• No Circuit Bounce
• Control Inputs are TTL/CMOS Compatible
• Pin−For−Pin Compatible With QS3257, FST3257, CBT3257
• All Popular Packages: SOIC−16, TSSOP−16, QFN16
•
These Devices are Pb−Free and are RoHS Compliant
The ON Semiconductor 74FST3257 is a quad 2:1, high performance multiplexer/demultiplexer bus switch.
The device is CMOS TTL compatible when operating between 4 and 5.5 Volts.
The device exhibits extremely low RON and adds nearly zero propagation delay.
The device adds no noise or ground bounce to the system.
Features
• RON < 4Ω Typical
• Less Than 0.25 ns−Max Delay Through Switch
• Nearly Zero Standby Current
• No Circuit Bounce
• Control Inputs are TTL/CMOS Compatible
• Pin−For−Pin Compatible With QS3257, FST3257, CBT3257
• All Popular Packages: SOIC−16, TSSOP−16, QFN16
•
These Devices are Pb−Free and are RoHS Compliant
Fast scan
Popular Specs Surfaced First
Product Parameter
Logic Function
Demultiplexer, Multiplexer
Product Parameter
Supply Voltage-Min (Vsup)
4V
Product Parameter
Terminal Finish
Tin (Sn)
Product Parameter
Turn On Delay Time
5.7 ns
Product Parameter
Voltage Supply Source
Single Supply
Product Parameter
Power Supplies
5V
Logic Function
Demultiplexer, Multiplexer
Supply Voltage-Min (Vsup)
4V
Terminal Finish
Tin (Sn)
Turn On Delay Time
5.7 ns
Voltage Supply Source
Single Supply
Power Supplies
5V
Supply Type
Single
Independent Circuits
1
Propagation Delay
250 ps
Voltage - Supply
4V~5.5V
Part Status
Active
REACH Status
REACH Unaffected
ECCN
EAR99
Lifecycle Status
ACTIVE (Last Updated: 1 day ago)
Lead Free
Lead Free
Mounting Type
Surface Mount
Published
2006
Factory Lead Time
4 Weeks
Packaging
Tape & Reel (TR)
Operating Temperature
-40°C~85°C
Halogen Free
Halogen Free
Quiescent Current
3μA
Categories
Integrated Circuits (ICs)
Supply Voltage
5V
Technology
CMOS
Terminal Position
QUAD
Terminal Pitch
0.5mm
Manufacturer
ON Semiconductor
Output Characteristics
3-STATE
Package / Case
16-VFQFN Exposed Pad
Output Polarity
TRUE
Subcategory
Other Logic ICs
Sub-Categories
Logic - Signal Switches, Multiplexers, Decoders
Operating Supply Voltage
5V
Surface Mount
YES
Radiation Hardening
No
Number Of Bits
8
Number Of Terminations
16
Pin Count
16
Number Of Pins
16
Pbfree Code
yes
Number Of Functions
4
Number Of Outputs
2
Low Level Output Current
128mA
Width
2.5mm
Family
CBT/FST/QS/5C/B
Length
3.5mm
Circuit
4 x 2:1
Type
Multiplexer/Demultiplexer
Base Part Number
74FST3257
Series
74FST
Manufacturer'S Part No.
74FST3257MNTWG
JESD-609 Code
e3
Moisture Sensitivity Level (MSL)
1 (Unlimited)
RoHS Status
ROHS3 Compliant
HTSUS
8542.39.0001
Common questions
Product FAQ
Quick answers for buyers reviewing 74FST3257MNTWG, stock, documentation, and sourcing steps.
What is 74FST3257MNTWG?
74FST3257MNTWG is a Logic - Signal Switches, Multiplexers, Decoders component from ON Semiconductor. This product page summarizes the core sourcing details buyers need before checking price, availability, documentation, or samples.
What package and description are listed for 74FST3257MNTWG?
74FST3257MNTWG is listed with package reference -. The current product description is IC MUX/DEMUX QUAD 21 16QFN, and buyers should confirm package, footprint, and electrical details against the datasheet or quotation notes before approval.
Is 74FST3257MNTWG available in stock?
This page currently shows 76909 units in stock and 64202 units available for 74FST3257MNTWG. Because electronic component availability can change quickly, submit an RFQ to confirm live stock, lead time, and final pricing.
Can I request a quote or sample for 74FST3257MNTWG?
Yes. Use the Quick Quote or Request Sample action on this page to send the quantity and sourcing requirements for 74FST3257MNTWG by ON Semiconductor. The TrustCompo team can review price, availability, and documentation support.
Is a datasheet available for 74FST3257MNTWG?
Yes. This page links to the datasheet for 74FST3257MNTWG by ON Semiconductor, so engineers and buyers can review package, ratings, and application details before purchase.
How should buyers verify 74FST3257MNTWG before ordering?
Buyers should confirm the manufacturer, package, quantity, target price, RoHS or compliance needs, and any Certificate of Conformance or traceability requirements for 74FST3257MNTWG before approving the order.
Logic - Signal Switches, Multiplexers, Decoders
Recommended Products
Explore more parts from the same subcategory to compare fit, stock, and sourcing options.
MC74LCX258DTG
128 purchased
TSSOP-16
Obsolete
RoHS
Datasheet
MC74LCX258DTG is an onsemi low-voltage CMOS quad 2:1 multiplexer with 3-state inverting outputs in TSSOP-16.
Reference price
Needs inquiry
74VHC138TTR
165 purchased
TSSOP
RoHS
Datasheet
IC DECODER 3 TO 8 LINE 16-TSSOP
Reference price
Needs inquiry
More sourcing insights
Articles
Explore related articles around 74FST3257MNTWG, Logic - Signal Switches, Multiplexers, Decoders, and adjacent sourcing decisions so buyers can compare context before moving from evaluation to RFQ.
Jul 17, 2026
FPGA Supply 2026: A Buyer's Framework for AMD Xilinx, Intel Altera, Microchip, and Lattice SourcingA production-BOM FPGA sourcing guide for 2026 covering lifecycle commitment, redesign cost, and qualification boundaries across AMD Xilinx, Intel Altera, Microchip PolarFire, and Lattice families.
FPGAAMD XilinxIntel Altera
Jul 11, 2026
2026 Q3 Wide-Bandgap Power Read: Where SiC Is Scaling, Where GaN Is Winning, and Why Silicon Still MattersA Q3 2026 read on SiC, GaN, and silicon power semiconductors: where wide-bandgap devices are winning now, where silicon still holds, and what engineers and sourcing teams should watch.
wide-bandgap semiconductorsSiCGaN
Jul 8, 2026
Texas Instruments Lead Time and Price Pressure in 2026: What Analog and Power Buyers Should Do NowA buyer-facing framework for Texas Instruments analog and power IC exposure in 2026, covering what is confirmed, where price and lead-time pressure is most likely to show up, and which actions sourcing teams should take first.
Texas Instrumentsanalog ICpower management IC