首頁 邏輯和電壓轉換 電壓轉換器及電平移位器 電壓轉換器
首頁
邏輯和電壓轉換
電壓轉換器及電平移位器
電壓轉換器

SN74AVC8T245

現行

具有可配置電壓電平移位變化與 3 態輸出的 8 位元雙電源供應匯流排收發器

立即訂購
產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
具備升級功能，可直接投入使用替代所比較的裝置。
TXV0108-Q1 現行 車用雙電源方向控制八通道電壓轉換器 Improved timing specs such as rise/fall time, skew, and propagation delay.
SN74AXC8T245 現行 8 位元雙電源匯流排收發器 Pin-to-pin upgrade with a wider voltage range and improved performance
功能相似於所比較的產品。
TXV0106-Q1 現行 車用雙電源定向六通道電壓轉換器 6 channel device with improved timing specs such as rise/fall time, skew, and propagation delay.

SN74AVC8T245

現行
產品規格表 立即訂購

產品詳細資料

Bits (#) 8 Data rate (max) (Mbps) 320 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.4 Vin (max) (V) 3.6 Vout (min) (V) 1.4 Vout (max) (V) 3.6 Applications RGMII Features Output enable, Overvoltage tolerant inputs, Partial power down (Ioff) Technology family AVC Supply current (max) (mA) 0.025 Rating Catalog Operating temperature range (°C) -40 to 125
Bits (#) 8 Data rate (max) (Mbps) 320 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.4 Vin (max) (V) 3.6 Vout (min) (V) 1.4 Vout (max) (V) 3.6 Applications RGMII Features Output enable, Overvoltage tolerant inputs, Partial power down (Ioff) Technology family AVC Supply current (max) (mA) 0.025 Rating Catalog Operating temperature range (°C) -40 to 125
TSSOP (PW) 24 49.92 mm² (7.8 mm × 6.4 mm) TVSOP (DGV) 24 32 mm² (5 mm × 6.4 mm) VQFN (RHL) 24 19.25 mm² (5.5 mm × 3.5 mm)
  • Latch-up performance exceeds 100 mA per JESD 78, Class II
  • ESD protection exceeds JESD 22:
    • 8000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • Control inputs V IH/V IL levels are referenced to V CCA voltage
  • V CC isolation feature – if either V CC input is at GND, all I/O ports are in the high-impedance state
  • I off supports partial power-down mode operation
  • Fully configurable dual-rail design allows each port to operate over the full 1.4-V to 3.6-V power-supply range
  • I/Os are 4.6-V tolerant
  • Maximum data rates:
    • 170Mbps (V CCA  < 1.8 V or V CCB  < 1.8 V)
    • 320Mbps (V CCA  ≥ 1.8 V and V CCB ≥ 1.8 V)
  • Latch-up performance exceeds 100 mA per JESD 78, Class II
  • ESD protection exceeds JESD 22:
    • 8000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • Control inputs V IH/V IL levels are referenced to V CCA voltage
  • V CC isolation feature – if either V CC input is at GND, all I/O ports are in the high-impedance state
  • I off supports partial power-down mode operation
  • Fully configurable dual-rail design allows each port to operate over the full 1.4-V to 3.6-V power-supply range
  • I/Os are 4.6-V tolerant
  • Maximum data rates:
    • 170Mbps (V CCA  < 1.8 V or V CCB  < 1.8 V)
    • 320Mbps (V CCA  ≥ 1.8 V and V CCB ≥ 1.8 V)

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVC8T245 is optimized to operate with V CCA/V CCB set at 1.4 V to 3.6 V. The device is operational with V CCA and V CCB as low as 1.2 V. The A port is designed to track V CCA. V CCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V CCB. V CCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC8T245 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 at the direction-control (DIR) input. The output-enable ( OE) input can be used to disable the outputs so the buses are effectively isolated.

The SN74AVC8T245 is designed so that the control pins (DIR and OE) are supplied by V CCA.

The SN74AVC8T245 is compatible with a single-supply system and can be replaced later with a ’245 function, with minimal printed circuit board redesign.

This device is fully specified for partial-power-down applications using I off. The I off circuitry disables the outputs, thus preventing damaging current backflow through the device when it is powered down.

The V CC isolation feature allows both ports to be in the high-impedance state when either V CC input is at GND.

To put the device into the high-impedance state during power up or power down, tie OE to V CC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVC8T245 is optimized to operate with V CCA/V CCB set at 1.4 V to 3.6 V. The device is operational with V CCA and V CCB as low as 1.2 V. The A port is designed to track V CCA. V CCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V CCB. V CCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC8T245 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 at the direction-control (DIR) input. The output-enable ( OE) input can be used to disable the outputs so the buses are effectively isolated.

The SN74AVC8T245 is designed so that the control pins (DIR and OE) are supplied by V CCA.

The SN74AVC8T245 is compatible with a single-supply system and can be replaced later with a ’245 function, with minimal printed circuit board redesign.

This device is fully specified for partial-power-down applications using I off. The I off circuitry disables the outputs, thus preventing damaging current backflow through the device when it is powered down.

The V CC isolation feature allows both ports to be in the high-impedance state when either V CC input is at GND.

To put the device into the high-impedance state during power up or power down, tie OE to V CC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.
filter 尋找其它 電壓轉換器
下載 觀看有字幕稿的影片 影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 8
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 SN74AVC8T2458-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs datasheet (Rev. K) PDF | HTML 2023/11/8
應用說明 Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators PDF | HTML 2024/10/2
應用說明 Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 2024/7/12
應用說明 Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 2024/7/3
應用說明 Overcoming Design Challenges - Implementing High Performance Interfaces PDF | HTML 2023/12/12
Application brief Translate Voltages for RGMII (Rev. A) PDF | HTML 2021/8/6
選擇指南 Voltage Translation Buying Guide (Rev. A) 2021/4/15
應用說明 Selecting the Right Level Translation Solution (Rev. A) 2004/6/22

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

14-24-LOGIC-EVM — 適用於 14 針腳至 24 針腳 D、DB、DGV、DW、DYY、NS 和 PW 封裝的邏輯產品通用評估模組

14-24-LOGIC-EVM 評估模組 (EVM) 設計用於支援任何 14 針腳至 24 針腳 D、DW、DB、NS、PW、DYY 或 DGV 封裝的任何邏輯裝置。

使用指南: PDF | HTML
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
開發板

14-24-NL-LOGIC-EVM — 適用於 14 針腳至 24 針腳無引線封裝的邏輯產品通用評估模組

14-24-NL-LOGIC-EVM 是一款靈活的評估模組 (EVM)，設計用於支援任何具有 14 針腳至 24 針腳 BQA、BQB、RGY、RSV、RJW 或 RHL 封裝的邏輯或轉換裝置。

使用指南: PDF | HTML
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
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
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
開發板

TXV0106-EVM — TXV0106 評估模組

TXV0106 評估模組 (EVM) 是一個易於使用的平台，用於評估 TXV0106 產品的功能與性能。此 EVM 具有選用電路和跨接器，可針對不同應用來配置產品。此產品提供固定與方向控制低偏斜、低抖動電壓轉換的選項。輸出可透過專屬的輸出啟用 (OE) 控制功能來啟用及停用。
使用指南: PDF | HTML
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
開發板

TXV0108-EVM — TXV0108 評估模組

TXV0108 評估模組 (EVM) 是一個易於使用的平台，用於評估 TXV0108 產品的功能與性能。此 EVM 具有選用電路和跨接器，可針對不同應用來配置產品。此產品提供固定與方向控制低偏斜、低抖動電壓轉換的選項。輸出可透過專屬的輸出啟用 (OE) 控制功能來啟用及停用。
使用指南: PDF | HTML
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
開發套件

EVMK2GX — 66AK2Gx 1GHz 評估模組

EVMK2GX（亦稱為「K2G」）1GHz 評估模組 (EVM) 可讓開發人員立即開始評估 66AK2Gx 處理器系列，並加快音訊、工業馬達控制、智慧電網保護和其他高可靠性，即時運算密集應用的開發速度。66AK2Gx 與現有的 KeyStone 式 SoC 裝置類似，可讓 DSP 與 Arm® 核心控制系統中的所有記憶體和週邊設備。此架構有助於實現最大軟體彈性以及以 DSP 或 Arm 為中心的系統設計。

此 EVM 受 Linux 和 TI-RTOS 作業系統的處理器 SDK 支援，並具備 USB、PCIe 與 Gigabit 乙太網路等關鍵週邊設備。它包括電路板管理控制器、SD (...)

支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
無法提供
模擬型號

SN74AVC8T245 IBIS Model (Rev. A)

SCEM415 (391 KB) - IBIS 模型
支援產品和硬體

許多 TI 參考設計包含 SN74AVC8T245

使用我們的參考設計選擇工具，以檢視並找出最適合您的應用和參數的設計。
封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 24 Ultra Librarian
TVSOP (DGV) 24 Ultra Librarian
VQFN (RHL) 24 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片