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Texas Instruments CD74HCT147E — Discrete Semiconductors
Texas Instruments

Texas Instruments CD74HCT147E Priority Encoder, 1 x 10:4

MPNCD74HCT147E
End of Life

Texas Instruments 74HCT Priority Encoder, CD74HCT147E, 1 x 10:4 circuit, 4.5V to 5.5V supply, -55°C to 125°C, 16-DIP (0.300", 7.62mm), Through Hole, Tube.

$0.81Ref. price · indicative, final on quote
CD74HCT147E 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

CD74HCT147E Technical Specifications
ParameterValue
TypePriority Encoder
Series74HCT
Mounting typeThrough Hole
Voltage4.5V ~ 5.5V
Voltage supply sourceSingle Supply
Current - output high, low4mA, 4mA
Operating temperature-55°C ~ 125°C
Circuit1 x 10:4
PackageTube
Case16-DIP (0.300\", 7.62mm)
Independent circuits1

Product details

10-line to 4-line priority encoder in a through-hole DIP

The Texas Instruments CD74HCT147E is a 10-line to 4-line priority encoder from the 74HCT logic family. It accepts nine active-low inputs and encodes the highest-priority active input into a 4-line BCD output.

Military temperature range — what it means for the BOM

Rated for -55°C to 125°C, this encoder is specified for avionics, satellite, downhole instrumentation, and other high-reliability environments where commercial or industrial temperature parts would drift out of spec. The 4 mA output current at both high and low levels is modest — plan on buffering if driving long traces or multiple CMOS loads.

Sourcing and lifecycle

It is ROHS3 compliant.

Frequently asked questions

Is CD74HCT147E compatible with 74HC147?

The CD74HCT147E is the HCT (high-speed CMOS with TTL-compatible input thresholds) version of the 74HC147. Pinout and function are identical, but the HCT variant ensures direct compatibility with TTL logic levels on the inputs — useful when mixing 5 V TTL and CMOS families on the same board.

What are the equivalent or replacement parts for CD74HCT147E?

The SN74LS348N is a functional alternative from the 74LS family, but it is an 8-line to 3-line encoder (1 x 8:3) with a narrower commercial temperature range (0°C to 70°C) and different output coding. For a direct 10:4 pin-compatible replacement, stick with the 74HCT147 or 74HC147 family in the same DIP-16 footprint.