現在提供此產品的更新版本
具備升級功能，可直接投入使用替代所比較的裝置。
SN74AVCH1T45
- Available in Texas Instruments’ NanoStar™ integrated circuit package
- Available in Texas Instruments’ NanoFree™ package
- Control inputs (DIR) VIH and VIL levels are referenced to VCCA voltage
- Bus hold on data inputs eliminates the need for external pullup and pulldown resistors
- VCC isolation
- Fully configurable dual-rail design
- I/Os are 4.6V tolerant
- Ioff supports partial-power-down mode operation
- Typical max data rates
- 500Mbps (1.8V to 3.3V translation)
- 320Mbps (<1.8V to 3.3V translation)
- 320Mbps (translate to 2.5V or 1.8V)
- 280Mbps (translate to 1.5V)
- 240Mbps (translate to 1.2V)
- Latch-up performance exceeds 100mA per JESD 78, class II
- ESD protection exceeds JESD 22
- Human-Body Model (A114-A): 2000V
- Machine Model (A115-A): 200V
- Charged-Device Model (C101): 1000V
The SN74AVCH1T45 is a single-bit noninverting bus transceiver that uses two separate configurable power-supply rails. The A port is designed to track VCCA, which accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track VCCB, which accepts any supply voltage from 1.2V to 3.6V. This feature allows for universal low-voltage, bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes.
The SN74AVCH1T45 is designed for asynchronous communication between two data buses. The device transmits data from either the A bus to the B bus, or from the B bus to the A bus, depending upon the logic level at the direction-control (DIR) input.
The SN74AVCH1T45 is designed so that the DIR input is referenced to VCCA.
技術文件
| 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 | SN74AVCH1T45 Single-Bit Dual-Supply Bus Transceiver With Configurable Level-Shifting, Voltage Translation, and 3-State Outputs datasheet (Rev. F) | PDF | HTML | 2024/4/11 | ||
| 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 | |||
| 選擇指南 | Voltage Translation Buying Guide (Rev. A) | 2021/4/15 |
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)。
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
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。
TIDA-00309 — DisplayPort 視訊 4:1 聚合參考設計
TIDA-00352 — SDI 視訊聚合參考設計
此經驗證的參考設計是完整的四通道 SDI 聚合與去聚合解決方案。一個 TLK10022 用於將四個同步 HD-SDI 源聚合到一個 5.94Gbps 串列鏈路中。序列資料透過銅纜或光纖傳輸，其中第二個 TLK10022 用於去聚合並無縫地重新顯示原始視訊內容。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOT-23 (DBV) | 6 | Ultra Librarian |
| SOT-SC70 (DCK) | 6 | Ultra Librarian |
| DSBGA (YZP) | 6 | Ultra Librarian |