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Texas Instruments PCA8550D — Discrete Semiconductors
Texas Instruments

PCA8550D Multiplexer, 1 x 4:4, 16-SOIC, 3V-3.6V

MPNPCA8550D
End of Life

PCA8550D, 8550 series, Type Multiplexer, Circuit 1 x 4:4, Single Supply 3V ~ 3.6V, Surface Mount 16-SOIC (0.154", 3.90mm Width), Tube, 0°C ~ 70°C, Active lifecycle.

$0.78Ref. price · indicative, final on quote
PCA8550D 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.
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Specifications

PCA8550D Technical Specifications
ParameterValue
TypeMultiplexer
Mounting typeSurface Mount
Voltage3V ~ 3.6V
Voltage supply sourceSingle Supply
Current - output high, low2mA, 2mA
Operating temperature0°C ~ 70°C
Circuit1 x 4:4
PackageTube
Case16-SOIC (0.154\", 3.90mm Width)
Independent circuits1

Product details

What the PCA8550D is and where it fits

The PCA8550D is a single-supply 4-line multiplexer from the 8550 series, packaged in a 16-SO (3.90 mm width) for surface-mount assembly. It switches one of four input lines to a single output — a 1 x 4:4 configuration — operating from a 3 V to 3.6 V rail. The output drive is rated at 2 mA high and low, suited for CMOS logic-level fan-out rather than high-current buses.

Temperature grade and deployment context

Rated for 0°C to 70°C, this is a commercial-temperature part.

Lifecycle and sourcing posture

It remains a current-production part, available through the standard independent-distribution channel.

Frequently asked questions

Can PCA8550D be replaced with DS90CP22MT/NOPB?

The DS90CP22MT/NOPB is a crosspoint switch, not a multiplexer — different circuit topology (1 x 2:2 vs 1 x 4:4) and a wider temperature range (-40°C to 85°C). It is not a pin-compatible or functional drop-in for the PCA8550D. No official second-source alternate is listed for this part.

What is PCA8550D's listed type and circuit?

Type: Multiplexer. Circuit: 1 x 4:4 — one 4-line input selector driving a single output.