Diodes Incorporated
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Automotive-Compliant 140Mb/s Bi-directional Level Translator for Push-Pull Applications

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The PI4ULS3V304AQ is an automotive qualified 4-bit configurable dual-supply autosensing bidirectional level translator that does not require a direction control pin. The B and A ports are designed to track two different power supply rails, VCCB and VCCA respectively.

The PI4ULS3V304AQ offers the feature that the values of the VCCB and VCCA supplies flexibility is maximized because VCCA can be set to a value that is independent. Design either greater than or less than the VCCB supply. The PI4ULS3V304AQ has high output current capability,
which allows the translator to drive high capacitive loads such as most high frequency EMI filters. Another feature of the PI4ULS3V304AQ is that each An and Bn channel can function as either an input or an output.

An Output Enable (EN) input is available to reduce the power consumption. The EN pin can be used to disable both I/O ports by putting them in 3-state which significantly reduces the supply current. The PI4ULS3V304AQ is capable of 2 kV System-Level ESD.


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified 
  • Device Temperature Grade 1: -40°C to +125°C
    Ambient Operating Temperature Range
  • 0.9V to 2.0V on A Port and 1.65V to 3.6V on B Port
  • VCCA may be greater than, equal to, or less than VCCB
  • High-Speed with 140 Mb/s Guaranteed Date Rate
  • 100 pF Capacitive Drive Capability
  • Low Bit-to-Bit Skew
  • Overvoltage Tolerant Enable and I/O Pins
  • Non-preferential Power-Up Sequencing
  • Power-Off Protection
  • Totally Lead-Free & Fully RoHS Compliant 
  • Halogen and Antimony Free. “Green” Device 
  • The PI4ULS3V304AQ is
    applications requiring specific change control; this part is
    AEC-Q 100 qualified, PPAP capable, and manufactured in
    IATF 16949 certified facilities.
  • Package: UQFN-12(ZMA)


  • Mobile Phones, PDAs
  • Other Portable Devices
  • Automotive

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Automotive
Translation From (V) 0.9 to 2.0
Translation To (V) 1.65 or 3.6
Max Signal Rate 140MHz
Bits Needed 4
Auto Direction Sensing? Yes
Shift Bi-Directional
Prop Delay (ns) 3
Ambient or Junction Temperature (°C) -40 to 125

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