Pages

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

RELATED PRODUCTS

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