Diodes Incorporated
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PI4ULS3V504 (Obsolete)

4-Bit, 280Mb/s, Bi-Directional Level Translator for Push-Pull Applications

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Product Description

The PI4ULS3V504 is a 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 PI4ULS3V504 offers the feature that the values of the VCCB and VCCA supplies are independent. Design flexibility is maximized because VCCA can be set to a value either greater than or less than the VCCB supply.

The PI4ULS3V504 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 PI4ULS3V504 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 PI4ULS3V504 is 2 kV System-Level ESD Capable


  • 0.85V to 2.7V on A Port and 1.35V to 3.6V on B Port
  • VCCA may be greater than, equal to, or less than VCCB
  • High-Speed with 280 Mb/s Guaranteed Date Rate
  • 30 pF Capacitive Drive Capability
  • Low Bit-to-Bit Skew
  • Overvoltage Tolerant Enable and I/O Pins
  • Non-preferential Power-Up Sequencing
  • Power-Off Protection
  • Package: UQFN1.7x2.0-12L


  • Mobile Phones, PDAs
  • Other Portable Devices

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Translation From (V) 0.85 to 2.5
Translation To (V) 1.5 to 3.6
Max Signal Rate 280Mbps -Push Pull
Bits Needed 4
Auto Direction Sensing? Yes
Shift Bi-Directional
Ambient or Junction Temperature (°C) -40 to 85

Related Content


Technical Documents

Design tool model software

Recommended Soldering Techniques


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

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Product Change Notices (PCNs)

A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.

PCN # Issue Date Implementation Date Subject
PCN-2505 2021-01-26 2021-07-26 Device End of Life (EOL)