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PI3B32X384 (Obsolete)

3.3V 20-Bit Bus Switch

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Product Description

The PI3B32X384 is a 3.3V, 20-bit bus switch designed with a low On-Resistance allowing inputs to be connected directly to outputs. The bus switch creates no additional propagational delay or additional ground bounce noise. The switches are turned ON by the Bus Enable (BE) input signal. Four bus enable signals are provided, one for each of the upper and lower five bits of the two 10-bit buses.


  • Near-Zero propagation delay
  • 5-ohm switches connect inputs to outputs
  • Direct bus connection when switches are ON
  • Ultra-low quiescent power (0.1μA typical)
    • Ideally suited for notebook applications
  • Fast Switching Speed: 4.5ns max.
  • TTL-compatible control of input levels
  • Packaging (pb-free & Green available):
    • 48-pin 150-mil wide plastic BQSOP (B)

Product Specifications

Product Parameters

Configuration 20-Channel, 1:1
Differential Channels N/A
HotInsertion 0
Lanes N/A
OtherFeatures N/A
RailToRail 0
Signal Type Single Ended
Single Ended Channels 20
Type N/A
Voltage 3.3

Technical Documents

Recommended Soldering Techniques


Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Status Package Environmental Compliance Packing Request Samples
Qty. Carrier
PI3B32X384BE Obsolete QSOP-48 GREEN 49 TUBE
PI3B32X384BEX Obsolete QSOP-48 GREEN 3000 T&R

Environmental Compliance Legend:
LFF: Pb-Free Finish and RoHS 5/6
TLFP: Totally Pb-Free Product and RoHS 6/6
LFGP: Pb-free Finish and Green Product, RoHS 5/6 and Halogen Free
TPGP: Totally Pb-Free and Green Product, RoHS 6/6 and Halogen Free
GREEN: Halogen-free and RoHS compliant
RoHS: RoHS compliant but NOT halogen-free