WB0102

This 2-bit non-inverting translator is a bidirectional voltage-level translator designed to establish digital switching compatibility between multi-voltage systems. The IC uses two independently configurable supply rails: Port A supports an operating voltage of 1.65 V to 3.6 V and tracks the VCCA supply; Port B supports an operating voltage of 2.3 V to 5.5 V and tracks the VCCB supply. These features provide support for both lower and higher logic signal levels while enabling bidirectional translation between 1.8 V, 2.5 V, 3.3 V, and 5 V voltage circuit nodes. When the output enable input is driven low, all I/O ports are forced into a high-impedance state, significantly reducing quiescent current consumption. To maintain the high-impedance state during power-up or power-down, the output enable pin should be connected to ground through a pull-down resistor; the minimum value of this resistor is determined by the current-sourcing capability of the driver.

Applications

• I2C/SMBus
• UART
• GPIO

Key features

• No direction control required
• Data rate: 24 Mbps in push-pull mode, 2 Mbps in open-drain mode
• Port A voltage range 1.65 V to 3.6 V, Port B voltage range 2.3 V to 5.5 V
• VCC isolation: if either VCC input is grounded, both ports enter high-impedance state
• No power supply sequencing required: VCCA or VCCB can power up first
• Ioff supports partial power-down operation
• Operating temperature range: -40℃ to +85℃