TCA9406

Product Folder Order Now Technical Documents Tools & Software Support & Community TCA9406 SCPS221G – OCTOBER 2010 – REVISED NOVEMBER 2018 TCA9406 2-Bit Bidirectional 1-MHz, I2C Bus and SMBus Voltage-Level Translator With 8-kV HBM ESD 1 Features 1 2-Bit Bidirectional Translator for SDA and SCL Lines in I2C Applications Provides Bidirectional Voltage Translation With No Direction Pin High-Impedance Output SCL_A, SDA_A, SCL_B, SDA_B Pins When OE = Low or VCC = 0 V Internal 10-kΩ Pullup Resistor on All SDA and SCL Pins 1.65 V to 3.6 V on A port and 2.3 V to 5.5 V on B port (VCCA ≤ VCCB) VCC Isolation Feature: If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State No Power-Supply Sequencing Required: Either VCCA or VCCB Can Be Ramped First Low Ioff of 2 µA When Either VCCA or VCCB = 0 V OE Input Can Be Tied Directly to VCCA Or Controlled By GPIO Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Protection Exceeds JESD 22 – A Port – 2500-V Human-Body Model (A114-B) – 250-V Machine Model (A115-A) – 1500-V Charged-Device Model (C101) – B Port – 8-kV Human-Body Model (A114-B) – 250-V Machine Model (A115-A) – 1500-V Charged-Device Model (C101) 2 Applications I2C/SMBus UART GPIO 3 Description The TCA9406 is a 2-bit bidirectional I2C and SMBus voltage-level translator with an output enable (OE) input. It is operational from 1.65 V to 3.6 V on the Aside, referenced toVCCA, and from 2.3 V to 5.5 V on the B-side, referenced to...