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Texas Instruments SN74F138N — DC-DC Power Modules
Texas Instruments

SN74F138N Decoder/Demultiplexer, 1 x 3:8, 16-DIP, Active

MPNSN74F138N
End of Life

Texas Instruments 74F series SN74F138N Decoder/Demultiplexer, 1 x 3:8, 4.5V to 5.5V supply, 1mA/20mA output, 16-DIP through-hole, 0°C to 70°C.

$0.62Ref. price · indicative, final on quote
SN74F138N 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

SN74F138N Technical Specifications
ParameterValue
TypeDecoder/Demultiplexer
Series74F
Mounting typeThrough Hole
Voltage4.5V ~ 5.5V
Voltage supply sourceSingle Supply
Current - output high, low1mA, 20mA
Operating temperature0°C ~ 70°C
Circuit1 x 3:8
PackageTube
Case16-DIP (0.300\", 7.62mm)
Independent circuits1

Product details

What it is and where it fits

The SN74F138N is a 1-of-8 decoder/demultiplexer from the 74F family. It takes a 3-bit binary input and asserts one of eight active-low outputs — the standard 1 x 3:8 configuration.

Package and mounting

Supply range is 4.5 V to 5.5 V, single-supply only. Output drive is rated 1 mA sourcing and 20 mA sinking. The commercial temperature grade is 0°C to 70°C.

Lifecycle and sourcing reality

The SN74F138N is listed as Active on the lifecycle record and ROHS3 compliant. For a BOM line that needs a through-hole decoder, this part is a stable choice.

Frequently asked questions

What is the difference between SN74F138N and SN74LS138N?

Both are 1-of-8 decoders in 16-DIP, but the 74F family (SN74F138N) typically offers higher speed and lower propagation delay than the 74LS variant. The pinout is the same, so they are functionally interchangeable in most socketed designs — just check the timing budget if the bus runs fast.

What is the equivalent of SN74F138N?

The SN74LS138N is a common functional equivalent in the 74LS family, same 1 x 3:8 decode, same 16-DIP footprint. For a higher-speed alternative, the 74F138 (surface-mount variants) or 74ACT138 are also pin-compatible options.