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MAX14591：High-Speed, Open-Drain Capable Logic-Level Translator

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

The MAX14591 is a dual-channel, bidirectional logic-level translator with 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 logic signal present on the VL side of the device appears as the same logic signal on the VCC side of the device, and vice-versa. The device is optimized for the I²C bus as well as the management data input/output (MDIO) bus where often high-speed, open-drain operation is required. When TS-bar is high, the device allows the pullup to be connected to the I/O port that has the power. This allows continuous I²C operation on the powered side without any disruption while the level translation function is off. The part is specified over the extended -40°C to +85°C temperature range, and is available in 8-bump WLP and 8-pin TDFN packages.

Key Features Meets Industry Standards I²C Requirements for Standard, Fast, and High Speeds* MDIO Open Drain Above 4MHz* Allows Greater Design Flexibility Down to 0.9V Operation on VL Side Supports Above 8MHz Push-Pull Operation Offers Low Power Consumption 23µA (typ) VCC Supply Current 0.5µA (typ) VL Supply Current Provides High Level of Integration Pullup Resistor Enabled with One Side Power Supply when TS-bar Is High 12kΩ (max) Internal Pullup Low Transmission Gate RON: 17Ω (max) Saves Space 8-Bump, 0.4mm pitch, 0.8mm x 1.6mm WLP Package 8-Pin, 2mm x 2mm TDFN Package

MAX14591: Typical Operating Circuit Applications/Uses Devices with I²C Communication Devices with MDIO Communication General Logic-Level Translation

DataSheet

Parametrics

Design kits & evaluation modules

• MAX14591EVKIT

Quality and Environmental Data

• MAX14591.pdf

Related Products

• MAX14595：High-Speed, Open-Drain Capable Logic-Level Translator

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