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Product Overview
The SN74AHC245MDWREP is a high-performance octal bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between two data buses. Housed in a 20-pin SOIC package, this device operates over a wide supply voltage range of 2V to 5.5V, making it suitable for both 3.3V and 5V systems. It features non-inverting outputs and offers high drive capability with up to 8mA output current. The device is characterized for operation from -55°C to +125°C, ensuring reliability in extreme environments. With its low power consumption and high noise immunity, the SN74AHC245MDWREP is ideal for industrial, automotive, and military applications.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2V to 5.5V |
| Input Voltage (VI) |
0V to 5.5V |
| Output Voltage (VO) |
0V to VCC |
| High-Level Output Current (IOH) |
-8mA |
| Low-Level Output Current (IOL) |
8mA |
| Propagation Delay (tpd) |
7.5ns (max) at 5V |
| Operating Temperature |
-55°C to +125°C |
| Package |
20-SOIC |
| Logic Family |
AHC |
| Number of Bits |
8 |
| Direction Control |
DIR pin |
| Output Enable |
Active-low OE pin |
Key Features
- Bidirectional bus transceiver with 8-bit non-inverting data paths
- Wide supply voltage range: 2V to 5.5V
- High drive capability: ±8mA at 5V
- Low power consumption: ICC of 4µA (max)
- High noise immunity: VNIH and VNIL typically 28% of VCC
- ESD protection exceeds 2000V per MIL-STD-883, Method 3015
- Supports partial-power-down mode (Ioff)
- Latch-up performance exceeds 250mA per JESD 17
- Available in enhanced plastic packaging for improved reliability
Target Applications
- 5G base station control boards for data bus isolation
- Automotive dashboard display modules for signal level translation
- Industrial PLC I/O modules for bidirectional communication
- Military avionics systems for reliable data transfer
- Medical imaging equipment for noise-immune data routing
- Telecommunications infrastructure for backplane interfacing
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74AHC245MDWREP. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
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In-stock Inventory, Same-day Shipping: We maintain localized stock;
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Shenzhen with support for HK bank transfers and multi-currency.
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BOM Kitting & Sampling Services: Specialized sourcing for
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
SN74AHC245MDWREP 是德州儀器的一款高性能八路匯流排收發器,專為兩個數據匯流排之間的雙向異步通信而設計。該器件採用 20 引腳 SOIC 封裝,工作電源電壓範圍為 2V 至 5.5V,適用於 3.3V 和 5V 系統。它具有同相輸出,並提供高達 8mA 的輸出驅動能力。該器件的工作溫度範圍為 -55°C 至 +125°C,確保在極端環境下的可靠性。憑藉低功耗和高抗噪性,SN74AHC245MDWREP 非常適合工業、汽車和軍事應用。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2V 至 5.5V |
| 輸入電壓 (VI) |
0V 至 5.5V |
| 輸出電壓 (VO) |
0V 至 VCC |
| 高電平輸出電流 (IOH) |
-8mA |
| 低電平輸出電流 (IOL) |
8mA |
| 傳播延遲 (tpd) |
7.5ns (最大值) 在 5V 下 |
| 工作溫度 |
-55°C 至 +125°C |
| 封裝 |
20-SOIC |
| 邏輯系列 |
AHC |
| 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
- 寬電源電壓範圍:2V 至 5.5V
- 高驅動能力:在 5V 下 ±8mA
- 低功耗:ICC 最大 4µA
- 高抗噪性:VNIH 和 VNIL 典型值為 VCC 的 28%
- ESD 保護超過 2000V(符合 MIL-STD-883,方法 3015)
- 支持部分斷電模式 (Ioff)
- 閂鎖性能超過 250mA(符合 JESD 17)
- 提供增強型塑料封裝以提高可靠性
典型應用場景
- 5G 基站控制板,用於數據匯流排隔離
- 汽車儀表盤顯示模塊,用於信號電平轉換
- 工業 PLC I/O 模塊,用於雙向通信
- 軍用航空電子系統,用於可靠的數據傳輸
- 醫療成像設備,用於抗噪數據路由
- 電信基礎設施,用於背板接口
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