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Texas Instruments SN74AHCT157N — DC-DC Power Modules
Texas Instruments

SN74AHCT157N 74AHCT Quad 2:1 Multiplexer, 4.5V-5.5V, 16-DIP

MPNSN74AHCT157N
End of Life

Texas Instruments 74AHCT series, SN74AHCT157N, Type Multiplexer, Circuit 4 x 2:1, Through Hole, 16-DIP (0.300", 7.62mm), Supply 4.5V ~ 5.5V, -40°C ~ 85°C.

$0.85Ref. price · indicative, final on quote
SN74AHCT157N 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

SN74AHCT157N Technical Specifications
ParameterValue
TypeMultiplexer
Series74AHCT
Mounting typeThrough Hole
Voltage4.5V ~ 5.5V
Voltage supply sourceSingle Supply
Current - output high, low8mA, 8mA
Operating temperature-40°C ~ 85°C
Circuit4 x 2:1
PackageTube
Case16-DIP (0.300\", 7.62mm)
Independent circuits1

Product details

Quad 2:1 multiplexer for 5V logic buses

The Texas Instruments SN74AHCT157N is a 4-channel 2:1 multiplexer from the 74AHCT logic family, in a 16-pin DIP through-hole package. It selects one of two 4-bit data sources onto a common output bus under control of a single select line.

Output drive and fan-out

Each output can sink or source 8mA (typical) — enough to drive three or four standard LSTTL loads or a single 74AHCT input with margin. If you are driving a heavily loaded bus or a long backplane trace, plan a buffer stage; the 8mA rating is the limit per pin.

Active production — no end-of-life concern

The SN74AHCT157N carries an Active product status, meaning TI continues to manufacture it without a last-time-buy window. For a BOM line that needs a DIP-format multiplexer, this part is a low-risk choice for both new builds and sustaining production.

Frequently asked questions

What is the function of SN74AHCT157N?

It is a quad 2:1 multiplexer — four independent 2-input selectors that route one of two 4-bit data words to the output bus under control of a common select line. It replaces discrete gate-level mux logic on a single DIP.

What is the equivalent of SN74AHCT157N?

The SN74LS348N is a different function (priority encoder, 1 x 8:3) and is not a direct equivalent. For a pin-compatible 2:1 mux, look for any 74AHCT157 or 74HCT157 from another manufacturer — verify timing and output drive against your application.

Is SN74AHCT157N available via RFQ confirmation?

Stock levels change daily. We source this part to order against an RFQ; submit a request for current inventory status and pricing.