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Quad Bidirectional Low-Voltage Logic-Level Translator

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

Product Details

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.

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

Applications/Uses

  • Low-Voltage ASIC Level Translation
  • Mobile Phones
  • Portable Electronics
  • POS Systems
  • SPI, I²C, and MDIO Level Translation
  • Telecommunications Equipment
Parametric specs for Logic Level Translators
# Level Transl. 4
Data Rate (Mbps) (max) 20
VL (V) 0.9 to 5
VCC (V) 1.65 to 5.5
ICC (µA) (max) 35
IL (µA) (max) 1
Package/Pins TDFN-CU/14
Budgetary
Price (See Notes)
$1.38 @1k
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Simplified Block Diagram

MAX14611: Typical Operating Circuit MAX14611: Typical Operating Circuit Zoom icon

Technical Docs

Design & Development

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Description

The MAX14611 evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the functionality of the MAX14611 quad bidirectional low-voltage logic-level translator in a 14-pin TDFN package. The highly configurable PCB enables direct evaluation of the IC through multiple jumper-selectable methods. Input power to the EV kit is provided by a Micro-USB, type-B connector, or by an external 5V power supply. On-board LDO regulators provide the appropriate voltage for each component, and potentiometers allow the user to independently adjust the power supply for either side of the level translator.

View Details

Features

  • Proven PCB Layout
    • Decrease Evaluation Time
  • Fully Assembled and Tested
  • On-Board Adjustable Oscillators
    • Evaluate without External Function Generator
  • Jumper-Selectable Open-Drain and Push-Pull Buffers Enable Simple Evaluation in Either Operating Mode

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Parameters

Parametric specs for Logic Level Translators
# Level Transl. 4
Data Rate (Mbps) (max) 20
VL (V) 0.9 to 5
VCC (V) 1.65 to 5.5
ICC (µA) (max) 35
IL (µA) (max) 1
Package/Pins TDFN-CU/14
Budgetary
Price (See Notes)
$1.38 @1k

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

Applications/Uses

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

Description

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.

Simplified Block Diagram

MAX14611: Typical Operating Circuit MAX14611: Typical Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal.