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Dual Supply 2-Bit Voltage Translator/Buffer/Repeater Isolator for I2C Applications

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FXMA2102UMX General Description

The FXMA2102 is a high-performance configurable dual-voltage-supply 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. The OE pin is referenced to VCCA.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.

ON Semiconductor, LLC Inventory

Key Features

• Bi−Directional Interface between Any Two Levels: 1.65 V to 5.5 V
• Direction Control not Needed
• System GPIO Resources Not Required when OE Tied to VCCA
• I²C 400 pF Buffer / Repeater
• I²C Bus Isolation
• A/B Port VOL = 175 mV (Typical), VIL = 150 mV, IOL = 6 mA
• 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 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
• Tolerant Output Enable: 5 V
• Packaged in 8−Terminal Leadless MicroPak (1.6 mm x 1.6 mm) and Ultrathin MLP (1.2 mm x 1.4 mm)
• ESD Protection Exceeds:
♦ 8 kV HBM ESD (per JESD22−A114)
♦ 2 kV CDM (per JESD22− C101)

ON Semiconductor, LLC Original Stock


  • This product is general usage and suitable for many different applications.
ON Semiconductor, LLC Inventory


Status Active Package Type UQFN-8
Case Outline 523AS MSL Temp (°C) 260
Container Type REEL

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Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

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Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

S**a Jul 12, 2023

80 days in astrakhan region. Thank you to the seller.

N**s May 03, 2023

Good supplier. Thank you.

A**n Dec 22, 2022

Delivery is of course long, but everything is fine.

B**n Nov 13, 2022

Product is exactly like in description and photos, really really fast shipping! I recommend this seller!



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FXMA2102UMX Datasheet PDF

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