FXMA2104: Dual-Supply, 4-Bit Voltage Translator / Buffer / Repeater / Isolator for Open-Drain Applications

The FXMA2104 is a 4-bit high-performance, configurable dual-voltage supply, open-drain translator for bi-directional voltage translation over a wide range of input and output voltages levels.

Intended for use as a voltage translator in applications using the I2C-Bus® interface, the input and output voltage levels are compatible with I2C device specification voltage levels. External pull-up resistors are required.

The device is designed so that the A port tracks the VCCA level and the B port tracks the VCCB level. This allows for bi-directional A/B port voltage translation between any two levels from 1.65V to 5.5V. VCCA can equal VCCB from 1.65V to 5.5V.

Non-preferential power-up means either VCC can be powered-up first. Internal power-down control circuits place the device in 3-state if either VCC is removed.

The two ports of the device have automatic direction-sense capability. Either port may sense an input signal and transfer it as an output signal to the other port.

Features

• Bi-Directional Interface between Any Two Levels: 1.65V to 5.5V
• Direction Control not Needed
• System GPIO Resources Not Required when OE Tied to V_CCA
• I²C 400pF Buffer / Repeater
• I²C-Bus® Isolation
• A/B Port V_OL = 175mV (Typical), V_IL = 150mV, I_OL = 6mA
• Open-Drain Inputs / Outputs
• Accommodates Standard-Mode and Fast-Mode I²C-Bus Devices
• Supports I²C Clock Stretching & Multi-Master
• Fully Configurable: Inputs and Outputs Track V_CC
• Non-Preferential Power-Up; Either V_CC May Be Powered-Up First
• Outputs Switch to 3-State if Either V_CC is at GND
• Tolerant Output Enable: 5V
• Packaged in 12-Lead Ultrathin MLP (1.8mm x 1.8mm)
• ESD Protection Exceeds:
  - 5kV HBM ESD (per JESD22-A114)
  - 2kV CDM (per JESD22-C101)