● 1.2V to 5.5V on A Ports and 1.65V to 5.5V on B Ports (VCCA ≤ VCCB)

● VCC Isolation: If Either VCC is at GND, All Outputs are in the 

   High-Impedance State

● OE Input Circuit Referenced to VCCA

● Low Power Consumption

● Push-Pull Output

● IOFF: Supports Partial-Power-Down Mode Operation

● -40℃ to +85℃ Operating Temperature Range

● Available in Green SOIC-14 and UTQFN-1.8×1.8-12L Packages

This 4-bit non-inverting voltage-level translator uses two separate configurable power-supply rails. The A ports are designed to track VCCA. VCCA accepts any supply voltage from 1.2V to 5.5V. The B ports are designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V voltage nodes. VCCA should not exceed VCCB.

When the output-enable (OE) input is low, all outputs are placed in the high-impedance state. To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pull down resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

The SGM4564 is designed so that the OE input circuit is supplied by VCCA. This device is fully specified for partial-power-down applications using IOFF. The IOFF circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.