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Product Overview
The SN74HC245DBR 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, allowing for efficient data flow control in digital systems. Housed in a compact 20-SSOP package, this device operates over a wide voltage range of 2V to 6V, making it suitable for a variety of logic-level applications. The SN74HC245DBR is ideal for driving bus lines or buffering memory address registers, providing robust signal integrity and low power consumption.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2V to 6V |
| Input Voltage (VI) |
0V to VCC |
| Output Voltage (VO) |
0V to VCC |
| High-Level Output Current (IOH) |
-6 mA |
| Low-Level Output Current (IOL) |
6 mA |
| Propagation Delay (tpd) |
12 ns (typ) at 5V |
| Operating Temperature |
-40°C to +85°C |
| Package |
20-SSOP |
| Logic Family |
HC |
| 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-oriented applications
- Wide operating voltage range: 2V to 6V
- High noise immunity: typical VOH = VCC - 0.1V at 6V
- Low power consumption: ICC max 80 µA
- ESD protection exceeds 2000V per MIL-STD-883, Method 3015
- Compatible with TTL levels
- Available in 20-SSOP package for space-constrained designs
Target Applications
The SN74HC245DBR is widely used in various electronic systems requiring reliable data transfer. Specific applications include:
- 5G base station control boards for data bus isolation
- Automotive dashboard display modules for signal buffering
- Industrial PLC I/O modules for bidirectional communication
- Consumer electronics like smart TVs and set-top boxes
- Medical equipment such as patient monitoring systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74HC245DBR. 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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HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
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Escrow Secured Transactions: We support Escrow.com for secure
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
SN74HC245DBR 是德州儀器 (TI) 生產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,具有三態輸出,可有效控制數字系統中的數據流。該器件採用緊湊的20-SSOP封裝,工作電壓範圍為2V至6V,適用於各種邏輯電平應用。SN74HC245DBR 非常適合驅動匯流排線路或緩衝存儲器地址寄存器,提供強大的信號完整性和低功耗。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2V 至 6V |
| 輸入電壓 (VI) |
0V 至 VCC |
| 輸出電壓 (VO) |
0V 至 VCC |
| 高電平輸出電流 (IOH) |
-6 mA |
| 低電平輸出電流 (IOL) |
6 mA |
| 傳播延遲 (tpd) |
12 ns (典型值) 在 5V |
| 工作溫度 |
-40°C 至 +85°C |
| 封裝 |
20-SSOP |
| 邏輯系列 |
HC |
| 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,適用於匯流排應用
- 寬工作電壓範圍:2V 至 6V
- 高抗噪性:典型 VOH = VCC - 0.1V 在 6V
- 低功耗:ICC 最大 80 µA
- ESD 保護超過 2000V,符合 MIL-STD-883 方法 3015
- 與 TTL 電平兼容
- 採用 20-SSOP 封裝,適合空間受限的設計
典型應用場景
SN74HC245DBR 廣泛應用於需要可靠數據傳輸的各種電子系統中。具體應用包括:
- 5G 基站控制板,用於數據匯流排隔離
- 汽車儀表盤顯示模塊,用於信號緩衝
- 工業 PLC I/O 模塊,用於雙向通信
- 消費電子產品,如智能電視和機頂盒
- 醫療設備,如病人監護系統
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74HC245DBR 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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全天候環球客戶支援:專業團隊為您提供即時報價及技術支援,無需漫長等待。
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