Diodes Incorporated
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Back to Universal Level Shifter / Voltage Translation (ULS)


Dual Bidirectional I3C/I2C-bus Voltage-level Translator

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The PI3CLS9606 is a 2-bit, dual supply translating transceiver with auto direction sensing, that enables bidirectional voltage level translation for traditional I2C-bus/SMBus applications, and 12.5 MHz I3C-bus applications. It features two 1-bit input-output ports (An and Bn), one output enable input (OE) and two supply pins (VCCA and VCCB). VCCA can be supplied at any voltage between 0.72V and 1.98V and VCCB can be supplied at any voltage between 0.72V and 1.98V. VCCA must be ≤ VCCB to ensure proper operation. PI3CLS9606 can be used for both open drain as well as push- pull application which allows for level translation applications using I3C and I2C protocols.

Port A is referenced to VCCA and port B is referenced to VCCB. The active HIGH OE pin is referenced to VCCA and controllable by a signal in either VCCA or VCCB domain. A LOW level at pin OE causes the outputs to be in a high-impedance OFF-state. This device is fully specified for partial power-down applications using IOFF. The IOFF circuitry disables the output, preventing the damaging backflow current through the device when it is in powered down.


  • I3C/I2C-bus and SMBus bi-directional level translator
  • Port A operating supply voltage VCCA range of 0.72V to 1.98V; Port B operating supply voltage VCCB range of 0.72V to 1.98V. VCCA≤ VCCB
  • Active HIGH repeater enable input
  • Lock-up free operation
  • Powered-off high-impedance I2C-bus pins
  • ESD protection exceeds 8KV HBM per JESD22-A114
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. "Green" Device (Note 3)
  • For automotive applications requiring specific change control (i.e. parts qualified to AEC-Q100/101/104/200, PPAP capable, and manufactured in IATF 16949 certified facilities), please contact us or your local Diodes representative. https://www.diodes.com/quality/product-definitions
  • Packaging (Pb-free & Green available):
    • 8-Lead, 1.4mm x 1.0mm (HK)

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Standard
Translation From (V) 0.72 to 1.98
Translation To (V) 0.72 to 1.98
Max Signal Rate 52MHz
Bits Needed 2
Auto Direction Sensing? No
Shift Bi-Directional
Ambient or Junction Temperature (°C) -40 to 85

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

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