SPRADJ3 July   2024 2N7001T , 2N7001T-Q1 , CD4009UB , CD4009UB-MIL , CD40109B , CD40109B-MIL , CD40109B-Q1 , CD4010B , CD4010B-MIL , CD4010B-Q1 , CD4504B , CD4504B-EP , CD4504B-MIL , LSF0101 , LSF0102 , LSF0102-Q1 , LSF0108 , LSF0108-Q1 , LSF0204 , LSF0204-Q1 , LSF0204D , SN10KHT5541 , SN10KHT5543 , SN10KHT5574 , SN54SC4T125-SEP , SN54SC6T06-SEP , SN54SC6T07-SEP , SN54SC6T14-SEP , SN54SC6T17-SEP , SN54SLC8T245-SEP , SN74ACT1284 , SN74ALVC164245 , SN74ALVC164245-EP , SN74AUP1T04 , SN74AUP1T14 , SN74AUP1T17 , SN74AUP1T34 , SN74AUP1T34-Q1 , SN74AUP1T50 , SN74AVC16T245 , SN74AVC16T245-Q1 , SN74AVC1T45 , SN74AVC20T245 , SN74AVC24T245 , SN74AVC2T244 , SN74AVC2T245 , SN74AVC2T45 , SN74AVC2T45-Q1 , SN74AVC32T245 , SN74AVC4T234 , SN74AVC4T245 , SN74AVC4T245-Q1 , SN74AVC4T774 , SN74AVC6T622 , SN74AVC8T245 , SN74AVC8T245-Q1 , SN74AVCA164245 , SN74AVCA406 , SN74AVCAH164245 , SN74AVCB164245 , SN74AVCB164245-EP , SN74AVCB164245-Q1 , SN74AVCBH164245 , SN74AVCH16T245 , SN74AVCH1T45 , SN74AVCH20T245 , SN74AVCH24T245 , SN74AVCH2T45 , SN74AVCH4T245 , SN74AVCH4T245-EP , SN74AVCH4T245-Q1 , SN74AVCH8T245 , SN74AXC1T45 , SN74AXC1T45-Q1 , SN74AXC2T245 , SN74AXC2T245-Q1 , SN74AXC2T45 , SN74AXC2T45-Q1 , SN74AXC4T245 , SN74AXC4T245-Q1 , SN74AXC4T774 , SN74AXC4T774-Q1 , SN74AXC8T245 , SN74AXC8T245-Q1 , SN74AXCH1T45 , SN74AXCH2T45 , SN74AXCH4T245 , SN74AXCH8T245 , SN74FB1650 , SN74FB1653 , SN74GTL1655 , SN74GTL16612 , SN74GTL16616 , SN74GTL16622A , SN74GTL2003 , SN74GTL2007 , SN74GTL2010 , SN74GTL2014 , SN74GTL2107 , SN74GTL3004 , SN74GTLP1394 , SN74GTLP1395 , SN74GTLP2033 , SN74GTLP21395 , SN74GTLP22033 , SN74GTLP817 , SN74GTLPH1645 , SN74GTLPH1655 , SN74GTLPH16912 , SN74GTLPH16945 , SN74GTLPH306 , SN74LV161284 , SN74LV1T04 , SN74LV1T04-Q1 , SN74LV1T125 , SN74LV1T125-Q1 , SN74LV1T126 , SN74LV1T126-Q1 , SN74LV1T34 , SN74LV1T34-Q1 , SN74LV4T125 , SN74LV4T125-EP , SN74LV4T125-Q1 , SN74LV6T06 , SN74LV6T06-EP , SN74LV6T06-Q1 , SN74LV6T07 , SN74LV6T07-EP , SN74LV6T07-Q1 , SN74LV6T14 , SN74LV6T14-EP , SN74LV6T14-Q1 , SN74LV6T17 , SN74LV6T17-EP , SN74LV6T17-Q1 , SN74LVC161284 , SN74LVC16T245 , SN74LVC16T245-EP , SN74LVC1T45 , SN74LVC1T45-EP , SN74LVC1T45-Q1 , SN74LVC2T45 , SN74LVC2T45-EP , SN74LVC2T45-Q1 , SN74LVC4245A , SN74LVC4245A-EP , SN74LVC8T245 , SN74LVC8T245-EP , SN74LVC8T245-Q1 , SN74LVCC3245A , SN74LVCC3245A-EP , SN74LVCC4245A , SN74LVCC4245A-EP , SN74LVCE161284 , SN74LVCH16T245 , SN74LVCH16T245-EP , SN74LVCH8T245 , SN74LVCZ161284A , SN74LXC1T14 , SN74LXC1T14-Q1 , SN74LXC1T45 , SN74LXC1T45-Q1 , SN74LXC2T45 , SN74LXC2T45-Q1 , SN74LXC8T245 , SN74LXC8T245-Q1 , SN74LXCH1T45 , SN74LXCH8T245 , TWL1200 , TWL1200-Q1 , TXB0101 , TXB0102 , TXB0104 , TXB0104-Q1 , TXB0106 , TXB0106-Q1 , TXB0108 , TXB0302 , TXB0304 , TXH0137D-Q1 , TXS0101 , TXS0102 , TXS0102-Q1 , TXS0104E , TXS0104E-Q1 , TXS0108E , TXS0108E-Q1 , TXS0202 , TXS0206 , TXS0206-29 , TXS0206A , TXS02324 , TXS02326A , TXS02612 , TXS4555 , TXS4558 , TXU0101 , TXU0101-Q1 , TXU0102 , TXU0102-Q1 , TXU0104 , TXU0104-Q1 , TXU0202 , TXU0202-Q1 , TXU0204 , TXU0204-Q1 , TXU0304 , TXU0304-Q1 , TXV0106 , TXV0106-Q1 , TXV0108 , TXV0108-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Device Applicability
    2. 1.2 When to Use or Not Use Auto-Bidirectional Devices
  5. 2Recommendations Specific to TXB, TXS, LSF
    1. 2.1 Before You Begin
      1. 2.1.1 Documentation
    2. 2.2 Power Supplies
      1. 2.2.1 Biasing Requirements
      2. 2.2.2 Decoupling Capacitors
      3. 2.2.3 Power Sequencing
    3. 2.3 Output Enable Pins
    4. 2.4 Input or Output Pins
    5. 2.5 Unused Pins
    6. 2.6 Pull-Ups and Pull-Downs
    7. 2.7 Recommended Translator by Interface
  6. 3Summary
  7. 4References

Abstract

This application note provides recommendations and a checklist to follow while creating or reviewing schematics for auto-bidirectional level shifters. Examples of such devices are the TXS, TXB and LSF device families. These devices are typically designed with limited drive strength, allowing their hosts to overdrive them for any direction. Such auto-bidirectional devices can be very sensitive to many factors when used in applications that are not auto-bidirectional. Intentional considerations should be ensured when designing with auto-bidirectional devices. Section 1.2 shows examples of auto-bidirectional use-cases.