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Texas Instruments SN74LS05DR — Discrete Semiconductors
Texas Instruments

SN74LS05DR 74LS Hex Inverter, Open Collector, 14-SOIC

MPNSN74LS05DR
End of Life

Texas Instruments 74LS series, SN74LS05DR, hex inverter with open-collector outputs, 6 circuits × 1 input, 4.75V–5.25V supply, 32ns @ 5V/15pF, 14-SOIC, 0°C–70°C, ROHS3.

$0.95Ref. price · indicative, final on quote
SN74LS05DR datasheet
Packaging14-SOIC (0.154", 3.90mm Width)
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

SN74LS05DR Technical Specifications
ParameterValue
Series74LS
Logic typeInverter
Mounting typeSurface Mount
Voltage4.75V ~ 5.25V
Current - output high, low-, 8mA
Number of inputs1
Operating temperature0°C ~ 70°C
PackageTape & Reel (TR); Cut Tape (CT)
FeaturesOpen Collector
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits6
Input logic level - low0.8V
Input logic level - high2V
Max propagation delay @ v, max CL32ns @ 5V, 15pF

Product details

Six open-collector inverters in a 14-SOIC

The SN74LS05DR is a hex inverter from the 74LS Schottky logic family, with six independent inverter gates and open-collector outputs in a 14-SOIC package.

Timing and drive — what the 32 ns and 8 mA mean on a board

Maximum propagation delay is 32 ns at 5 V supply with a 15 pF load. The 8 mA sink current per output drives a standard TTL input with headroom.

Active, ROHS3, and what that means for a BOM line

The SN74LS05DR carries an active lifecycle status from Texas Instruments. No NRND flag, no last-time-buy notice. The part is ROHS3 compliant.

Frequently asked questions

What is the difference between SN74LS05DR and SN74LS04?

Both are hex inverters with the same pinout and supply range. The SN74LS05DR has open-collector outputs; the SN74LS04 has totem-pole (push-pull) outputs. The 74LS05 can sink 8 mA but cannot source current; the 74LS04 can both source and sink. The 74LS05 allows wired-OR connections and level shifting to higher voltages via an external pull-up resistor; the 74LS04 cannot do wired-OR without damaging the outputs.

Can SN74LS05DR be used with 5V supply?

Yes. The SN74LS05DR is designed for a 4.75 V to 5.25 V supply, making it a direct fit for standard 5 V TTL and 5 V CMOS logic systems. The 32 ns propagation delay is specified at 5 V with a 15 pF load.