SN74AXC2T45

AKTIV

Doppel-Bit-Doppel-Supply-Bus-Transceiver mit konfigurierbarer Spannungsumsetzung

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Produktdetails

Technology family AXC Applications UART Bits (#) 2 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) 380 IOH (max) (mA) -12 IOL (max) (mA) 12 Supply current (max) (µA) 23 Features Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Input type Standard CMOS Output type Push-Pull Rating Catalog Operating temperature range (°C) -40 to 125
Technology family AXC Applications UART Bits (#) 2 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) 380 IOH (max) (mA) -12 IOL (max) (mA) 12 Supply current (max) (µA) 23 Features Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Input type Standard CMOS Output type Push-Pull Rating Catalog Operating temperature range (°C) -40 to 125
SSOP (DCT) 8 11.8 mm² 2.95 x 4 VSSOP (DCU) 8 6.2 mm² 2 x 3.1 X2SON (DTM) 8 1.08 mm² 0.8 x 1.35
  • AEC-Q100 automotive qualified
  • Fully configurable dual-rail design allows each port to operate with a power supply range from 0.65V to 3.6V
  • Operating temperature from –40°C to +125°C
  • Glitch-free power supply sequencing
  • Up to 380Mbps support when translating from 1.8V to 3.3V
  • VCC isolation feature
    • If either VCC input is below 100mV, all I/Os outputs are disabled and become high-impedance
  • Ioff supports partial-power-down mode operation
  • Compatible with AVC family level shifters
  • Latch-up performance exceeds 100mA per JESD 78, Class II
  • ESD protection exceeds JESD 22
    • 8000-V human-body model
    • 1000-V charged-device model
  • AEC-Q100 automotive qualified
  • Fully configurable dual-rail design allows each port to operate with a power supply range from 0.65V to 3.6V
  • Operating temperature from –40°C to +125°C
  • Glitch-free power supply sequencing
  • Up to 380Mbps support when translating from 1.8V to 3.3V
  • VCC isolation feature
    • If either VCC input is below 100mV, all I/Os outputs are disabled and become high-impedance
  • Ioff supports partial-power-down mode operation
  • Compatible with AVC family level shifters
  • Latch-up performance exceeds 100mA per JESD 78, Class II
  • ESD protection exceeds JESD 22
    • 8000-V human-body model
    • 1000-V charged-device model

The SN74AXC2T45 is a two-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 0.65V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65V to 3.6V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65V to 3.6V. Additionally the SN74AXC2T45 is compatible with a single-supply system.

The SN74AXC2T45 device is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level of the direction-control input (DIR). The SN74AXC2T45 device is designed so the control pin (DIR) is referenced to VCCA.

This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry is designed so 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 is designed so that if either VCCA or VCCB is less than 100mV, 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 SN74AXC2T45 is a two-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 0.65V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65V to 3.6V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65V to 3.6V. Additionally the SN74AXC2T45 is compatible with a single-supply system.

The SN74AXC2T45 device is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level of the direction-control input (DIR). The SN74AXC2T45 device is designed so the control pin (DIR) is referenced to VCCA.

This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry is designed so 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 is designed so that if either VCCA or VCCB is less than 100mV, 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.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet SN74AXC2T45 2-Bit Translating Transceiver with Configurable Level-Shifting datasheet (Rev. D) PDF | HTML 31 Jan 2024
Application note Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators PDF | HTML 02 Okt 2024
Application note Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 12 Jul 2024
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 03 Jul 2024
Application brief Future-Proofing Your Level Shifter Design with TI's Dual Footprint Packages PDF | HTML 05 Sep 2023
Application brief Enabling Robust and Competitive Wireless Tracking Modules with Logic PDF | HTML 15 Okt 2021
Application brief Enabling Deep-Sleep Modes for IoT Communication Modules With Logic PDF | HTML 04 Mai 2021
Selection guide Voltage Translation Buying Guide (Rev. A) 15 Apr 2021
Application note Translate Voltages for GPIO PDF | HTML 04 Aug 2020
Technical article Enabling IIoT to reach beyond the factory floor PDF | HTML 29 Jul 2020
Technical article How smart thermostats get their degrees PDF | HTML 09 Mär 2020
Technical article Enabling smart meter wireless connectivity with level translation PDF | HTML 23 Okt 2019
EVM User's guide SN74AXC2T-SMALLPKGEVM Evaluation module user's guide 04 Jun 2019

Design und Entwicklung

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Evaluierungsplatine

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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
Evaluierungsplatine

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Benutzerhandbuch: PDF
Simulationsmodell

SN74AXC2T45 IBIS Model

SCEM592.ZIP (42 KB) - IBIS Model
Gehäuse Pins CAD-Symbole, Footprints und 3D-Modelle
SSOP (DCT) 8 Ultra Librarian
VSSOP (DCU) 8 Ultra Librarian
X2SON (DTM) 8 Ultra Librarian

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