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Texas Instruments SN74AC14D — Signal Isolation
Texas Instruments

SN74AC14D 74AC Hex Schmitt-Trigger Inverter, 10ns @ 5V

MPNSN74AC14D
End of Life

Texas Instruments 74AC series, SN74AC14D, hex Schmitt-trigger inverter, 6 circuits, 1 input per circuit, 2V–6V supply, 24mA output drive, 10ns propagation delay at 5V/50pF, -40°C to 85°C, 14-SOIC package.

$1.16Ref. price · indicative, final on quote
SN74AC14D 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

SN74AC14D Technical Specifications
ParameterValue
Series74AC
Logic typeInverter
Mounting typeSurface Mount
Voltage2V ~ 6V
Current - quiescent2 µA
Current - output high, low24mA, 24mA
Number of inputs1
Operating temperature-40°C ~ 85°C
PackageTube
FeaturesSchmitt Trigger
Case14-SOIC (0.154\", 3.90mm Width)
Number of circuits6
Input logic level - low0.5V ~ 1.1V
Input logic level - high2.2V ~ 3.9V
Max propagation delay @ v, max CL10ns @ 5V, 50pF

Product details

Six Schmitt-trigger inverters in a 14-SOIC — what that means on the bench

The SN74AC14D: Six independent inverter gates with Schmitt-trigger inputs in a 14-SOIC package. Supply range 2V to 6V; outputs sink or source 24 mA each.

10 ns at 5V — does the timing close?

Max propagation delay 10 ns at 5V, 50 pF. The 74AC family is faster than the 74HC equivalent (14 ns at 6V for SN74HCU04PWT).

Active production — no LTB worry

TI lists the SN74AC14D as Active with ROHS3 compliance. No last-time-buy notice, no end-of-life announcement. For a BOM freeze or a long-production-run design, this part is a safe choice — you are not chasing broker stock for a discontinued line.

Mounting and environment

Surface-mount in a 14-SOIC (3.90 mm body width) — standard footprint, no exotic pad geometry. The -40°C to 85°C operating range covers industrial cabinets, outdoor telecom shelters, and automotive cabin environments. Quiescent current is 2 µA max, so it adds negligible draw to a battery-powered rail.

Frequently asked questions

Is SN74AC14D compatible with 5V logic?

Yes, the 2V to 6V supply range includes 5V. The input logic levels (low 0.5V–1.1V, high 2.2V–3.9V) and 24 mA output drive are well within 5V logic thresholds.

Can SN74AC14D replace 74HC14D?

The SN74AC14D is a functional replacement for a 74HC14D hex Schmitt-trigger inverter in the same 14-SOIC footprint. The AC version is faster (10 ns vs ~14 ns propagation delay at 5V) and offers the same 24 mA output drive. Check the input logic level thresholds — the AC family has tighter hysteresis — but in most designs it drops in without a board change.