Startseite Logik- & Spannungsumsetzung Spannungsumsetzer & Pegelverschieber Richtungsgesteuerte Spannungsumsetzer
Startseite
Logik- & Spannungsumsetzung
Spannungsumsetzer & Pegelverschieber
Richtungsgesteuerte Spannungsumsetzer

SN74AXCH1T45

AKTIV

Ein-Bit-Bus-Transceiver mit zwei Versorgungsspannungen

Jetzt bestellen
Datenblatt

SN74AXCH1T45

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

Technology family AXC Applications GPIO Bits (#) 1 High input voltage (min) (V) 0.455 High input voltage (max) (V) 3.6 Vout (min) (V) 0.65 Vout (max) (V) 3.6 Data rate (max) (Mbps) 500 IOH (max) (mA) -12 IOL (max) (mA) 12 Supply current (max) (µA) 14 Features Bus-hold, Output enable, Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Input type Standard CMOS Output type 3-State, Balanced CMOS, Push-Pull Rating Catalog Operating temperature range (°C) -40 to 125
Technology family AXC Applications GPIO Bits (#) 1 High input voltage (min) (V) 0.455 High input voltage (max) (V) 3.6 Vout (min) (V) 0.65 Vout (max) (V) 3.6 Data rate (max) (Mbps) 500 IOH (max) (mA) -12 IOL (max) (mA) 12 Supply current (max) (µA) 14 Features Bus-hold, Output enable, Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Input type Standard CMOS Output type 3-State, Balanced CMOS, Push-Pull Rating Catalog Operating temperature range (°C) -40 to 125
SOT-23 (DBV) 6 8.12 mm² 2.9 x 2.8 SOT-SC70 (DCK) 6 4.2 mm² 2 x 2.1 USON (DRY) 6 1.45 mm² 1.45 x 1 X2SON (DTQ) 6 0.8 mm² 1 x 0.8
  • Fully Configurable Dual-Rail Design Allows Each Port to Operate With a Power Supply Range from 0.65 V to 3.6 V
  • Operating Temperature: –40°C to +125°C
  • Glitch-Free Power Supply Sequencing
  • Bus-hold on Data Inputs Eliminates the Need for External Pullup or Pulldown Resistors
  • Maximum Quiescent Current (ICCA + ICCB) of 10 µA (85°C Maximum) and 16 µA (125°C Maximum)
  • Up to 500-Mbps Support When Translating from 1.8 to 3.3 V
  • VCC Isolation Feature
    • If Either VCC Input is Below 100 mV, All I/Os Outputs are Disabled and Become High-Impedance
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 8000-V Human Body Model
    • 1000-V Charged-Device Model
  • Fully Configurable Dual-Rail Design Allows Each Port to Operate With a Power Supply Range from 0.65 V to 3.6 V
  • Operating Temperature: –40°C to +125°C
  • Glitch-Free Power Supply Sequencing
  • Bus-hold on Data Inputs Eliminates the Need for External Pullup or Pulldown Resistors
  • Maximum Quiescent Current (ICCA + ICCB) of 10 µA (85°C Maximum) and 16 µA (125°C Maximum)
  • Up to 500-Mbps Support When Translating from 1.8 to 3.3 V
  • VCC Isolation Feature
    • If Either VCC Input is Below 100 mV, All I/Os Outputs are Disabled and Become High-Impedance
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 8000-V Human Body Model
    • 1000-V Charged-Device Model

The SN74AXCH1T45 is a single-bit noninverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCA and VCCB supplies as low as 0.65 V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65 V to 3.6 V. Additionally the SN74AXCH1T45 is compatible with a single-supply system.

The DIR pin determines the direction of signal propagation. With the DIR pin configured HIGH, translation is from Port A to Port B. With DIR configured LOW, translation is from Port B to Port A. The DIR pin is referenced to VCCA, meaning that its logic-high and logic-low thresholds track with VCCA.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. If a supply is present for VCCA or VCCB, the bus-hold circuitry always remains active on the A or B inputs respectively, independent of the state of the direction control pin.

This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.

The VCC isolation feature ensures that if either VCCA or VCCB is less than 100 mV, both I/O ports enter a high-impedance state by disabling their outputs.

Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.

The SN74AXCH1T45 is a single-bit noninverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCA and VCCB supplies as low as 0.65 V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65 V to 3.6 V. Additionally the SN74AXCH1T45 is compatible with a single-supply system.

The DIR pin determines the direction of signal propagation. With the DIR pin configured HIGH, translation is from Port A to Port B. With DIR configured LOW, translation is from Port B to Port A. The DIR pin is referenced to VCCA, meaning that its logic-high and logic-low thresholds track with VCCA.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended. If a supply is present for VCCA or VCCB, the bus-hold circuitry always remains active on the A or B inputs respectively, independent of the state of the direction control pin.

This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.

The VCC isolation feature ensures that if either VCCA or VCCB is less than 100 mV, both I/O ports enter a high-impedance state by disabling their outputs.

Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.
open-in-new Andere Richtungsgesteuerte Spannungsumsetzer suchen
Herunterladen Video mit Transkript ansehen Video

Ähnliche Produkte, die für Sie interessant sein könnten

open-in-new Alternativen vergleichen
Gleiche Funktionalität, gleiche Pinbelegung wie verglichener Baustein
SN74LXCH1T45 AKTIV Single-Bit-Transceiver mit zwei Versorgungsspannungen und konfigurierbarer Spannungspegelverschiebun 5 V version of 1 bit translator with Schmitt trigger inputs 

Technische Dokumentation

star =Von TI ausgewählte Top-Empfehlungen für dieses Produkt
Keine Ergebnisse gefunden. Bitte geben Sie einen anderen Begriff ein und versuchen Sie es erneut.
Alle anzeigen 5
Typ Titel Datum
* Data sheet SN74AXCH1T45 Single-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation, Tri-State Outputs, and Bus-Hold Inputs datasheet (Rev. C) PDF | HTML 09 Sep 2020
Selection guide Voltage Translation Buying Guide (Rev. A) 15 Apr 2021
Application note Low Voltage Translation for SPI, UART, RGMII, JTAG Interfaces (Rev. B) PDF | HTML 29 Mär 2021
Application note Glitch free power sequencing with AXC level translators (Rev. A) 20 Sep 2018
Application note An Overview of Bus-Hold Circuit and the Applications (Rev. B) 17 Sep 2018

Design und Entwicklung

Weitere Bedingungen oder erforderliche Ressourcen enthält gegebenenfalls die Detailseite, die Sie durch Klicken auf einen der unten stehenden Titel erreichen.

Evaluierungsplatine

5-8-LOGIC-EVM — Generisches Logik-Evaluierungsmodul für 5- bis 8-polige DCK-, DCT-, DCU-, DRL- und DBV-Gehäuse

Flexibles EVM zur Unterstützung aller Geräte mit 5- bis 8-poligem DCK-, DCT-, DCU-, DRL- oder DBV-Gehäuse.
Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

AVCLVCDIRCNTRL-EVM — Generisches EVM für richtungsgesteuerte bidirektionale Umsetzungsgeräte mit Unterstützung für AVC un

The generic EVM is designed to support one, two, four and eight channel LVC and AVC direction-controlled translation devices. It also supports the bus hold and automotive -Q1 devices in the same number of channels. The AVC are low voltage translation devices with lower drive strength of 12mA. LVC (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Simulationsmodell

SN74AXCH1T45 IBIS Model

SCEM584.ZIP (27 KB) - IBIS Model
Herunterladen
Gehäuse Pins Herunterladen
SOT-23 (DBV) 6 Optionen anzeigen
SOT-SC70 (DCK) 6 Optionen anzeigen
USON (DRY) 6 Optionen anzeigen
X2SON (DTQ) 6 Optionen anzeigen
Es gelten die allgemeinen Geschäftsbedingungen von TI für Evaluierungsartikel.

Bestellen & Qualität

Beinhaltete Information:
  • RoHS
  • REACH
  • Bausteinkennzeichnung
  • Blei-Finish/Ball-Material
  • MSL-Rating / Spitzenrückfluss
  • MTBF-/FIT-Schätzungen
  • Materialinhalt
  • Qualifikationszusammenfassung
  • Kontinuierliches Zuverlässigkeitsmonitoring
Beinhaltete Information:
  • Werksstandort
  • Montagestandort

Support und Schulungen

TI E2E™-Foren mit technischem Support von TI-Ingenieuren

Alle Forenthemen auf Englisch anzeigen

Inhalte werden ohne Gewähr von TI und der Community bereitgestellt. Sie stellen keine Spezifikationen von TI dar. Siehe Nutzungsbedingungen.

Bei Fragen zu den Themen Qualität, Gehäuse oder Bestellung von TI-Produkten siehe TI-Support. ​​​​​​​​​​​​​​

Videos