Overview
The FXMA2102UMX is a high-performance, configurable dual-voltage-supply translator designed for bi-directional voltage translation across a wide range of input and output voltage levels. It is particularly suited for applications using the I2C bus interface, ensuring compatibility with I2C device specification voltage levels. The device features automatic direction sense capability, eliminating the need for direction control and system GPIO resources when the OE pin is tied to VCCA. It is packaged in an 8-terminal Leadless MicroPak™ (1.6mm x 1.6mm) and Ultrathin MLP (1.2mm x 1.4mm), making it compact and versatile for various designs.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage (Min) | 1.65 V |
| Supply Voltage (Max) | 5.5 V |
| Number of Channels | 2 |
| Propagation Delay Time | 1 ns |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | 85°C |
| Input Low Voltage (VIL) | 150 mV (Typical) |
| Input High Voltage (VIH) | 175 mV (Typical) |
| Output Low Voltage (VOL) | 6 mA |
| ESD Protection | 2 kV HBM I/O to GND, 8 kV HBM ESD (per JESD22-A114 & Mil Std 883e 3015.7) |
| Package Type | UQFN8, Leadless MicroPak™, Ultrathin MLP |
Key Features
- Bi-directional interface between any two levels from 1.65V to 5.5V.
- No direction control needed; automatic direction sense capability.
- No system GPIO resources required when OE tied to VCCA.
- I2C 400pF buffer / repeater and I2C bus isolation.
- Supports I2C clock stretching and multi-master operations.
- Fully configurable: inputs and outputs track VCC.
- Control input (/OE) referenced to VCCA.
- Non-preferential power-up; either VCC may be powered-up first.
- Outputs switch to 3-state if either VCC is at GND.
- ESD protection exceeds 2 kV HBM I/O to GND and 8 kV HBM ESD.
Applications
The FXMA2102UMX is suitable for a wide range of applications, particularly those involving I2C bus interfaces. It is ideal for:
- I2C bus translation and isolation.
- GPIO voltage translation in mixed-voltage systems.
- Buffering and repeating signals in I2C bus systems.
- Multi-master I2C bus environments.
- General-purpose voltage translation in various electronic systems.
Q & A
- What is the FXMA2102UMX used for?
The FXMA2102UMX is a dual-voltage-supply translator used for bi-directional voltage translation in applications such as I2C bus interfaces and mixed-voltage systems.
- What is the voltage range supported by the FXMA2102UMX?
The device supports voltage levels from 1.65V to 5.5V for both input and output.
- Does the FXMA2102UMX require direction control?
No, the FXMA2102UMX has automatic direction sense capability, eliminating the need for direction control).
- What type of ESD protection does the FXMA2102UMX offer?
The device offers ESD protection exceeding 2 kV HBM I/O to GND and 8 kV HBM ESD (per JESD22-A114 & Mil Std 883e 3015.7)).
- What package types are available for the FXMA2102UMX?
The FXMA2102UMX is available in 8-terminal Leadless MicroPak™, Ultrathin MLP, and UQFN8 packages).
- Can either VCC be powered-up first?
- What happens to the outputs if either VCC is at GND?
The outputs switch to 3-state if either VCC is at GND).
- Does the FXMA2102UMX support I2C clock stretching and multi-master operations?
- What is the propagation delay time of the FXMA2102UMX?
- What is the minimum operating temperature of the FXMA2102UMX?
