FXL2SD106: Low-Voltage Dual-Supply 6-Bit Voltage Translator with Auto-Direction Sensing

The FXL2SD106 is a configurable dual-voltage-supply translator designed for both uni-directional and bidirectional voltage translation between two logic levels. The device allows translation between voltages as high as 3.6V to as low as 1.1V. The A port tracks the VCCA level and the B port tracks the VCCB level. This allows for bi-directional voltage translation over a variety of voltage levels: 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V.

The device remains in 3-state until both VCC reach active levels, allowing either VCC to be powered-up first. Internal power-down control circuits place the device in 3-state if either VCC is removed.

The OE input, when low, disables both A and B ports by placing them in a 3-state condition. The FXL2SD106 is designed so that OE and CLK IN are supplied by VCCA.

The device senses an input signal on A or B port automatically. The input signal is transferred to the other port.

The FXL2SD106 is not designed for SD card applications. The internal bus hold circuitry conflicts with pull-up resistors. SD cards have internal pull-up resistors on the CD/DAT3 pins.

Features

• Bi-Directional Interface between Two Levels: 1.1V and 3.6V
• Fully Configurable: Inputs and Outputs Track V_CC Level
• Non-Preferential Power-up; Either V_CC May Be Powered-up First
• Outputs Remain in 3-State until Active V_CC Level is Reached
• Outputs Switch to 3-State if Either V_CC is at GND
• Power-Off Protection
• Bus HOLD on Data Inputs Eliminates Need for Pullup Resistors (Do NOT Use Resistors on the A or B Ports)
• OE and CLK IN are Referenced to V_CCA Voltage
• Packaged in 16-Terminal DQFN (2.5mm x 3.5mm)
• Direction Control Not Needed
• 80Mbps Throughput Translating between 1.8V and 2.5V
• ESD Protection Exceeds:
• 12kV HBM (B port I/O to GND) (per JESD22-A114 & Mil Std 883e 3015.7)
• 8kV HBM (A port I/O to GND) (per JESD22-A114 & Mil Std 883e 3015.7)
• 1kV CDM (per ESD STM 5.3)