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邏輯元件和電壓轉換
電壓轉換器及電平移位器
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

Bits (#) 2 Data rate (max) (Mbps) 380 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 0.65 Vin (max) (V) 3.6 Vout (min) (V) 0.65 Vout (max) (V) 3.6 Applications UART Features Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Prop delay (ns) 4 Technology family AXC Supply current (max) (mA) 0.023 Rating Catalog Operating temperature range (°C) -40 to 125
Bits (#) 2 Data rate (max) (Mbps) 380 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 0.65 Vin (max) (V) 3.6 Vout (min) (V) 0.65 Vout (max) (V) 3.6 Applications UART Features Overvoltage tolerant inputs, Partial power down (Ioff), Vcc isolation Prop delay (ns) 4 Technology family AXC Supply current (max) (mA) 0.023 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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技術文件

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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 Fixed or Direction Control Translators PDF | HTML 2024年 10月 2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

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

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
TI.com 無法提供
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

通用 EVM 的設計可支援一、二、四、八通道 LVC 及 AVC 方向控制的轉換裝置。此外也支援相同通道數量的匯流排保留與汽車 -Q1 裝置。AVC 是低電壓轉換裝置，具較低驅動強度 12mA。LVC 是較高的電壓轉換裝置，範圍從 1.65 到 5.5V 且具較高驅動強度 32mA。

使用指南: PDF
TI.com 無法提供
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

此 EVM 設計旨在支援 DIR 控制雙向裝置 AXC 和 LVC 系列的 DTM 和 RSW 封裝。AXC 和 AVC 裝置屬於低電壓方向控制轉換系列，操作電壓範圍為 0.65V 至 3.6V (AXC)，驅動強度 12mA 時為 1.2 至 3.6 (AVC)。
使用指南: PDF
TI.com 無法提供
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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