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Texas Instruments SN74F257N — Crystals & Oscillators
Texas Instruments

SN74F257N 4 x 2:1 Multiplexer 16-DIP Texas Instruments

MPNSN74F257N
End of Life

Texas Instruments SN74F257N, 74F series, 4 x 2:1 multiplexer, single 4.5V–5.5V supply, 3mA/24mA output drive, 16-pin DIP through-hole package.

$0.84Ref. price · indicative, final on quote
SN74F257N datasheet
Packaging16-DIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

SN74F257N Technical Specifications
ParameterValue
TypeMultiplexer
Series74F
Mounting typeThrough Hole
Voltage4.5V ~ 5.5V
Voltage supply sourceSingle Supply
Current - output high, low3mA, 24mA
Operating temperature0°C ~ 70°C
Circuit4 x 2:1
PackageTube
Case16-DIP (0.300\", 7.62mm)
Independent circuits1

Product details

Quad 2-input multiplexer in a breadboard-friendly DIP

The SN74F257N is a 4 x 2:1 multiplexer from the 74F family — it selects one of two 4-bit input words and routes it to the output, controlled by a common select line. This is the through-hole 16-DIP variant, so it fits standard breadboards and solderable prototype boards without an adapter. Supply range is 4.5V to 5.5V, single-rail, making it a drop-in for classic 5V TTL or 5V CMOS logic systems. Output drive is specified at 3mA sourcing and 24mA sinking — enough to drive a LED through a resistor or feed the input of another 74F gate without a buffer.

Temperature grade and package — bench to light industrial

The 16-DIP (0.300-inch row spacing) package is through-hole, easy to hand-solder, and socket-friendly for prototyping.

Active production — sourcing on RFQ

Sourced to order against BOM quantities — confirm your volume and delivery window with an RFQ.

Frequently asked questions

What is the function of the SN74F257N?

It is a 4-bit 2-to-1 multiplexer — it selects between two 4-bit input buses and routes the chosen word to the output. A single select pin controls all four channels.

Is SN74F257N compatible with 5V logic?

Yes, the supply range is 4.5V to 5.5V, making it directly compatible with standard 5V TTL and 5V CMOS logic families.

What is the difference between SN74F257N and SN74F257D?

The SN74F257N is the 16-DIP through-hole package; the SN74F257D is the SOIC-16 surface-mount variant. Electrical specifications are identical.