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Diodes Incorporated PI3CLS39306 I2C/SMBus/I3C Volt-Level Translators

Diodes Inc. PI3CLS39306 I2C/SMBus/I3C Bus Voltage-Level Translators are dual bidirectional voltage level translators with an enable (EN) input. These devices are operational from 0.9V to 3.3V (VREF1) and 1.8V to 5V (VREF2).

The Diodes Inc. PI3CLS39306 allows bidirectional voltage translations between 1.0V and 5V without using a direction pin. The switch's low ON-state resistance (Ron) enables connections with minimal propagation delay. When EN is HIGH, the translator switch is on, and the SCL1 and SDA1 I/O are connected to the SCL2 and SDA2 I/O, respectively, allowing bidirectional data flow between ports. The translator switch is off when EN is LOW, and a high-impedance state exists between ports.

Features

  • 2-bit bidirectional translator for SDA and SCL lines in mixed-mode I2C-Bus applications
  • Standard-Mode, Fast-Mode, and Fast-Mode Plus I2C-Bus and SMBus compatible
  • I3C compatible (12.5MHz support)
  • Less than 1.5ns maximum propagation delay to accommodate Standard Mode and Fast Mode I2C-Bus devices and multiple masters
  • Allows voltage level translation between
    • 9V VREF1 and 1.8V, 2.5V, 3.3V, or 5V VREF2
    • 2V VREF1 and 1.8V, 2.5V, 3.3V, or 5V VREF2
    • 5V VREF1 and 2.5V, 3.3V, or 5V VREF2
    • 8V VREF1 and 3.3V or 5V VREF2
    • 5V VREF1 and 5V VREF2
    • 3V VREF1 and 5V VREF2
  • Provides bidirectional voltage translation with no direction pin
  • Low 3.50Ω ON-state connection between input and output ports provides less signal distortion
  • Open-drain I2C-Bus I/O ports (SCL1, SDA1, SCL2, and SDA2)
  • 5V-tolerant I2C-Bus I/O ports to support mixed-mode signal operation
  • High-impedance SCL1, SDA1, SCL2, and SDA2 pins for EN = LOW
  • Lock-up free operation for isolation when EN = LOW
  • Flow through pinout for ease of printed-circuit board trace routing
  • ESD protection exceeds 4KV HBM per JESD22-A114
  • Packaging
    • 8-pin, MSOP (M)
    • 8-pin, VSSOP (V)
    • 8-pin, SSOP (SS)
    • 8-pin, SOT28 (TA)
    • 8-pin, X2-DFN (HK)
  • Lead-free and RoHS-compliant
  • Halogen and antimony-free Green device

Pin Configuration

Chart - Diodes Incorporated PI3CLS39306 I2C/SMBus/I3C Volt-Level Translators

Block Diagram

Block Diagram - Diodes Incorporated PI3CLS39306 I2C/SMBus/I3C Volt-Level Translators
Published: 2025-09-23 | Updated: 2025-10-23