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Product Overview
The SN74AC245DW from Texas Instruments is a high-performance octal bus transceiver designed for bidirectional asynchronous communication between data buses. It features 8-bit non-inverting buffers with 3-state outputs, enabling efficient data flow control in digital systems. Operating from 2V to 6V, this device is ideal for mixed-voltage environments and offers high drive capability up to ±24 mA at the outputs. Housed in a 20-SOIC package, it provides a compact solution for space-constrained applications.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2V to 6V |
| Input Voltage Range |
0V to VCC |
| Output Current (IOH/IOL) |
±24 mA |
| Propagation Delay (tpd) |
7.5 ns max at 5V, 50 pF |
| Operating Temperature |
-40°C to +85°C |
| Package |
20-SOIC (7.5mm width) |
| Logic Family |
AC |
| Number of Bits |
8 |
| Direction Control |
DIR pin |
| Output Enable |
Active-low OE |
Key Features
- Bidirectional bus transceiver with 8-bit non-inverting buffers
- 3-state outputs for bus isolation
- Wide operating voltage range: 2V to 6V
- High drive capability: ±24 mA at outputs
- Low power consumption: ICC max 40 µA
- ESD protection exceeds 2000V per MIL-STD-883
- Compatible with TTL levels when VCC = 5V
- Flow-through pinout for easy PCB layout
Target Applications
- 5G base station control logic: data bus isolation between FPGA and microcontroller
- Automotive dashboard display: bidirectional communication between MCU and display driver
- Industrial PLC: signal buffering between backplane and I/O modules
- Consumer electronics: data transfer between application processor and peripheral ICs
- Telecommunications: level translation in mixed-voltage systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74AC245DW. 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;
orders confirmed before 4 PM are shipped the same day.
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Shenzhen with support for HK bank transfers and multi-currency.
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transactions, ensuring peace of mind for batch orders.
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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
SN74AC245DW 是德州儀器 (TI) 的高性能八路匯流排收發器,專為數據匯流排之間的雙向異步通信而設計。它包含 8 位非反相緩衝器,帶三態輸出,可實現數位系統中高效的數據流控制。工作電壓範圍為 2V 至 6V,非常適合混合電壓環境,並提供高達 ±24 mA 的輸出驅動能力。採用 20-SOIC 封裝,為空間受限的應用提供緊湊解決方案。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2V 至 6V |
| 輸入電壓範圍 |
0V 至 VCC |
| 輸出電流 (IOH/IOL) |
±24 mA |
| 傳播延遲 (tpd) |
7.5 ns 最大值 (5V, 50 pF) |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
20-SOIC (7.5mm 寬) |
| 邏輯系列 |
AC |
| 位數 |
8 |
| 方向控制 |
DIR 引腳 |
| 輸出使能 |
低電平有效 OE |
核心特性
- 雙向匯流排收發器,帶 8 位非反相緩衝器
- 三態輸出,實現匯流排隔離
- 寬工作電壓範圍:2V 至 6V
- 高驅動能力:輸出 ±24 mA
- 低功耗:ICC 最大 40 µA
- ESD 保護超過 2000V (MIL-STD-883)
- 當 VCC = 5V 時與 TTL 電平兼容
- 流暢的引腳排列,便於 PCB 佈局
典型應用場景
- 5G 基站控制邏輯:FPGA 與微控制器之間的數據匯流排隔離
- 汽車儀表板顯示:MCU 與顯示驅動器之間的雙向通信
- 工業 PLC:背板與 I/O 模塊之間的信號緩衝
- 消費電子:應用處理器與外圍 IC 之間的數據傳輸
- 電信設備:混合電壓系統中的電平轉換
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74AC245DW 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
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