Quad Bidirectional Low-Voltage Logic-Level Translator

Quad-Channel Bidirectional Logic-Level Translator Is Optimized for I²C and MDIO Buses

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The MAX14611 is a quad bidirectional logic-level translator that provides the level shifting necessary to allow data transfer in a multivoltage system. Externally applied voltages, VCC and VL, set the logic levels on either side of the device. A low-voltage logic signal present on the VL side of the device appears as a high-voltage logic signal on the VCC side of the device, and vice-versa.

The device is ideal for I²C bus as well as MDIO bus applications where open-drain operation is often required. The device features a three-state output mode (active-low TS). Drive active-low TS high to connect the pullup to the powered I/O port. This allows for continuous, undisrupted I²C operation on the powered side of the device while the level translation function is off. The MAX14611 is a pin-to-pin compatible upgrade to the MAX3378E in the TDFN package.

The MAX14611 features enhanced high-electrostatic-discharge (ESD) protection on all I/OVCC_ ports up to ±6kV HBM. The device operates over the -40°C to +85°C extended temperature range and is available in 3mm x 3mm, 14-pin TDFN and 4.9mm x 5.1mm, 14-pin TSSOP packages.
MAX14611: Typical Operating Circuit MAX14611: Typical Operating Circuit Enlarge+

Key Features

  • Improved Interoperability
    • Meets I²C Specifications
    • 10kΩ Internal Pullup Resistor
    • Pin-to-Pin Compatible with the MAX3377E and the MAX3378E
    • 0.9V Operation on Low Voltage Supply
  • Robust Logic-Level Translation
    • ±0.5V Tolerances on All Pins
    • ±6kV Human Body Model ESD Protection on I/OVCC_ Lines
    • Thermal Short-Circuit Protection
    • Short to Ground Fault Protection on All Pins
    • -40°C to +85°C Operating Temperature Range
  • Increased Design Flexibility
    • Ultra-Low Supply Current
    • Pullup Resistor Enabled with a Single Power Supply when Active-Low TS = High
    • 10Ω (max) Transmission Gate FET
    • Small, 14-Pin, 3.0mm x 3.0mm TDFN Package and 14-Pin, 4.9mm x 5.1mm TSSOP Package


  • Low-Voltage ASIC Level Translation
  • Mobile Phones
  • Portable Electronics
  • POS Systems
  • SPI, I²C, and MDIO Level Translation
  • Telecommunications Equipment

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX14611EVKIT: Evaluation Kit for the MAX14611
Product Reliability Reports: MAX14611.pdf 
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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