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Product Overview
The SN74ABTH245DBR is an octal bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between two data buses. It features non-inverting outputs and 3-state outputs for bus-oriented applications. The device is housed in a 20-pin SSOP package, offering a compact solution for high-speed data transfer. With a typical propagation delay of 4.6 ns and support for mixed-voltage systems (5V tolerant inputs), it is ideal for interfacing between different logic levels.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| Input Voltage Range |
0V to 5.5V |
| Output Voltage Range |
0V to VCC |
| Propagation Delay (tpd) |
4.6 ns typical at 5V |
| Output Current (IOH/IOL) |
-32 mA / 64 mA |
| Operating Temperature |
-40°C to +85°C |
| Package |
20-SSOP (5.3 mm body width) |
| Logic Family |
ABT (Advanced BiCMOS) |
| Number of Bits |
8 |
| Direction Control |
DIR pin |
| Output Enable |
Active-low OE pin |
Key Features
- Bi-directional bus transceiver with 8-bit non-inverting data paths
- 3-state outputs for bus isolation
- 5V tolerant inputs for mixed-voltage systems
- High drive capability: -32 mA source, 64 mA sink
- Low propagation delay: 4.6 ns typical
- Power-up 3-state to prevent bus contention during power sequencing
- ESD protection exceeds 2000V per MIL-STD-883, Method 3015
- Available in SSOP package for space-constrained designs
Target Applications
- 5G base station control boards for data bus isolation
- Automotive dashboard display modules for signal buffering
- Industrial PLC I/O modules for bidirectional data transfer
- Telecommunications switches for backplane interfacing
- Medical imaging equipment for high-speed data routing
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74ABTH245DBR. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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orders confirmed before 4 PM are shipped the same day.
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testing samples and urgent shortage components.
Quality Assurance & Compliance
Jasin Chip guarantees that all delivered products are 100% original factory stock
with full quality assurance and traceability.
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100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
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RoHS Compliant: All electronic components comply with international
environmental and safety standards.
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Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
SN74ABTH245DBR 是德州儀器推出的八路匯流排收發器,專為兩個數據匯流排之間的雙向異步通信而設計。它具有同相輸出和三態輸出,適用於匯流排應用。器件採用 20 引腳 SSOP 封裝,為高速數據傳輸提供緊湊解決方案。典型傳播延遲為 4.6 ns,支持混合電壓系統(5V 容限輸入),非常適合不同邏輯電平之間的接口。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5V 至 5.5V |
| 輸入電壓範圍 |
0V 至 5.5V |
| 輸出電壓範圍 |
0V 至 VCC |
| 傳播延遲 (tpd) |
典型值 4.6 ns @ 5V |
| 輸出電流 (IOH/IOL) |
-32 mA / 64 mA |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
20-SSOP (5.3 mm 體寬) |
| 邏輯系列 |
ABT (先進 BiCMOS) |
| 位數 |
8 |
| 方向控制 |
DIR 引腳 |
| 輸出使能 |
低電平有效 OE 引腳 |
核心特性
- 雙向匯流排收發器,8 位同相數據路徑
- 三態輸出,用於匯流排隔離
- 5V 容限輸入,支持混合電壓系統
- 高驅動能力:-32 mA 源電流,64 mA 灌電流
- 低傳播延遲:典型值 4.6 ns
- 上電三態,防止電源排序期間的匯流排競爭
- ESD 保護超過 2000V(符合 MIL-STD-883 方法 3015)
- 採用 SSOP 封裝,適合空間受限設計
典型應用場景
- 5G 基站控制板的數據匯流排隔離
- 汽車儀表盤顯示模塊的信號緩衝
- 工業 PLC I/O 模塊的雙向數據傳輸
- 電信交換機的背板接口
- 醫療成像設備的高速數據路由
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