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Texas Instruments CD74HC147M — Analog & Data Acquisition
Texas Instruments

CD74HC147M Priority Encoder, 1 x 10:4, 16-SOIC

MPNCD74HC147M
End of Life

Texas Instruments 74HC series priority encoder, CD74HC147M, 1 x 10:4 circuit, 2V to 6V single supply, 5.2mA output drive, -55°C to 125°C, 16-SOIC surface mount package.

$1.2Ref. price · indicative, final on quote
CD74HC147M datasheet
Packaging16-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

CD74HC147M Technical Specifications
ParameterValue
TypePriority Encoder
Series74HC
Mounting typeSurface Mount
Voltage2V ~ 6V
Voltage supply sourceSingle Supply
Current - output high, low5.2mA, 5.2mA
Operating temperature-55°C ~ 125°C
Circuit1 x 10:4
PackageTube
Case16-SOIC (0.154\", 3.90mm Width)
Independent circuits1

Product details

Priority encoder for 10-line to 4-line BCD encoding

The CD74HC147M is a 74HC-series priority encoder with a 1 x 10:4 circuit, operating from 2V to 6V single supply over -55°C to 125°C.

Lifecycle and supply position

The CD74HC147M carries an Active lifecycle status with ROHS3 compliance. For a BOM line that needs a standard 74HC priority encoder, this is not a shortage-risk part in normal market conditions. The 74HC family is mature and widely produced, so allocation pressure is rare unless a broader logic shortage hits the industry.

Frequently asked questions

What are the alternatives to CD74HC147M?

The SN74LS348N is a through-hole priority encoder from the 74LS family, but it uses a 1 x 8:3 circuit (eight inputs, three outputs) compared to the CD74HC147M's 1 x 10:4 configuration, and its operating temperature is 0°C to 70°C commercial range only. The DS90CP22MT/NOPB is a crosspoint switch, not a priority encoder — it is not a functional substitute. For a pin-compatible 74HC priority encoder, the CD74HC147M is the standard choice; no exact second-source alternate is recorded, but any 74HC147 in 16-SOIC from another qualified manufacturer would be a drop-in.

What is CD74HC147M used for?

The CD74HC147M is a priority encoder that converts nine active-low input signals into a four-line BCD output. Typical applications include encoding keypad presses, interrupt requests in microcontroller systems, and data selection where the highest-priority active line must be identified first.