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邏輯和電壓轉換
電壓轉換器及電平移位器
方向控制電壓轉換器

SN74AXC2T45

現行

具可配置電壓轉換的雙位元雙電源匯流排收發器

立即訂購
產品規格表

SN74AXC2T45

現行
產品規格表 立即訂購

產品詳細資料

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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類型 標題 日期
* Data sheet SN74AXC2T45 2-Bit Translating Transceiver with Configurable Level-Shifting datasheet (Rev. D) PDF | HTML 2024年 1月 31日
Application note Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 2024年 7月 12日
Application note Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 2024年 7月 3日
Application brief Future-Proofing Your Level Shifter Design with TI's Dual Footprint Packages PDF | HTML 2023年 9月 5日
Application brief Enabling Robust and Competitive Wireless Tracking Modules with Logic PDF | HTML 2021年 10月 15日
Application brief Enabling Deep-Sleep Modes for IoT Communication Modules With Logic PDF | HTML 2021年 5月 4日
Selection guide Voltage Translation Buying Guide (Rev. A) 2021年 4月 15日
Application note Translate Voltages for GPIO PDF | HTML 2020年 8月 4日
Technical article Enabling IIoT to reach beyond the factory floor PDF | HTML 2020年 7月 29日
Technical article How smart thermostats get their degrees PDF | HTML 2020年 3月 9日
Technical article Enabling smart meter wireless connectivity with level translation PDF | HTML 2019年 10月 23日
EVM User's guide SN74AXC2T-SMALLPKGEVM Evaluation module user's guide 2019年 6月 4日

設計與開發

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開發板

5-8-LOGIC-EVM — 適用於 5 針腳至 8 針腳 DCK、DCT、DCU、DRL 和 DBV 封裝的通用邏輯評估模組

靈活的 EVM 旨在支援任何針腳數為 5 至 8 支且採用 DCK、DCT、DCU、DRL 或 DBV 封裝的裝置。
使用指南: PDF
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開發板

AVCLVCDIRCNTRL-EVM — 適用於方向控制雙向轉換裝置、支援 AVC 和 LVC 的通用 EVM

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 (...)

使用指南: PDF
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開發板

AXC2T-SMALLPKGEVM — 適用於 DTM 和 RSW 封裝產品的 AXC2T 小型封裝評估模組

This EVM is designed to support DTM and RSW packages for the AXC and LVC family of DIR controlled bidirectional devices. The AXC and AVC devices belong to the low voltage direction controlled translation family with operating voltage from 0.65V to 3.6V (AXC) and 1.2 to 3.6 (AVC) with 12mA of drive (...)
使用指南: PDF
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模擬型號

SN74AXC2T45 IBIS Model

SCEM592.ZIP (42 KB) - IBIS Model
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封裝 針腳 CAD 符號、佔位空間與 3D 模型
SSOP (DCT) 8 Ultra Librarian
VSSOP (DCU) 8 Ultra Librarian
X2SON (DTM) 8 Ultra Librarian
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