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Monday, 25 May 2015

8CHANNEL BIDIRECTIONAL LOGIC LEVEL CONVERTER



OVERVIEW

INTRODUCTION

 Because the Arduino (and Basic Stamp) are 5V devices, and most modern sensors, displays, flash cards and modes are 3.3V-only, many makers find that they need to perform level shifting/conversion to protect the 3.3V device from 5V.This 8-bit non inverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. VCCA should not exceed VCCB.

FEATURES


  • 1.2 V to 3.6 V on A Port and 1.65 to 5.5 V on B Port (VCCA ≤ VCCB).
  • VCC Isolation Feature – If Either VCC Input Is at GND, All Outputs Are in the High-Impedance State.
  • OE Input Circuit Referenced to VCCA.
  • Low Power Consumption, 4-mA Max ICC.
  • Ioff Supports Partial-Power-Down Mode Operation.
  • High quality PCB FR4 Grade with FPT Certified


APPLICATIONS

  • Handset
  • Smartphone
  • Tablet
  • Desktop PC

TXB0108IC

 CIRCUIT DIAGRAM

 PIN DESCRIPTION

 



NOTE: TXB0108 should not be used in applications such as I2C or 1-wire where an open drain driver is connected on the Bi-directional data I/O

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DIY UNO Play Breadboard -ATMEGA328P             Expansion Board Compatible for                                                                                                                     raspberry Pi                 

 

 

RDL- UNO ATMEGA328 Development Board 3 in 1(= Uno+Memory Shield+Xbee Shield) - Programmed with Arduino