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

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.

Applications

* Devices with I²C Communication * Devices with MDIO Communication * General Logic-Level Translation

* 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