🧪 SAMPLE SUPPORT
✅ 100% Original & Traceable
🚀 Inquiry Today, Ship Today
🛡️ Escrow.com Secured Payment
Product Overview
The SN74LS649NT is a high-performance 8-bit bus transceiver from Texas Instruments, designed for bidirectional asynchronous communication between two data buses. Housed in a 24-pin PDIP package, this device features 3-state outputs and inverting logic, making it ideal for bus-oriented systems where signal inversion and high drive capability are required. It operates over a wide voltage range and offers robust noise immunity, ensuring reliable data transfer in industrial and telecommunications environments.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.75V to 5.25V |
| Input High Voltage (VIH) |
2.0V min |
| Input Low Voltage (VIL) |
0.8V max |
| Output High Voltage (VOH) |
2.7V min (IOH = -400 µA) |
| Output Low Voltage (VOL) |
0.5V max (IOL = 8 mA) |
| Propagation Delay (tPLH/tPHL) |
12 ns typ (VCC = 5V, CL = 15 pF) |
| Output Current (IOH/IOL) |
-400 µA / 8 mA |
| Operating Temperature |
0°C to 70°C |
| Package |
24-PDIP |
Key Features
- 8-bit bidirectional bus transceiver with inverting outputs
- 3-state outputs for bus isolation
- High noise immunity: typical VNH = 1.2V, VNL = 1.0V
- Low power consumption: 50 mW typ per package
- Inputs and outputs are compatible with TTL logic levels
- Designed for memory and data bus applications
- ESD protection exceeds 2000V per MIL-STD-883, Method 3015
Target Applications
- 5G base station control boards for data bus isolation
- Industrial PLC (Programmable Logic Controller) I/O modules
- Automotive dashboard display interfaces
- Telecommunications switching equipment
- Memory address/data bus buffering in embedded systems
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74LS649NT. Our core advantages include:
-
24/7 Global Customer Support: Professional team providing instant
quotes and technical support worldwide.
-
In-stock Inventory, Same-day Shipping: We maintain localized stock;
orders confirmed before 4 PM are shipped the same day.
-
HK-SZ Synergy, Flexible Settlement: Direct global shipping from
Shenzhen with support for HK bank transfers and multi-currency.
-
Escrow Secured Transactions: We support Escrow.com for secure
transactions, ensuring peace of mind for batch orders.
-
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.
-
100% Original & Authentic: All components are guaranteed to
be authentic with strict quality control.
-
RoHS Compliant: All electronic components comply with international
environmental and safety standards.
-
Original Factory Packaging: We maintain original factory packaging
and seals to ensure ESD protection and physical integrity.
產品概述
SN74LS649NT 是一款來自德州儀器的高性能 8 位總線收發器,設計用於兩個數據總線之間的雙向異步通信。該器件採用 24 引腳 PDIP 封裝,具有三態輸出和反相邏輯,非常適合需要信號反相和高驅動能力的總線系統。它在寬電壓範圍內工作,並具有強大的抗噪聲能力,確保在工業和電信環境中可靠的數據傳輸。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.75V 至 5.25V |
| 輸入高電平 (VIH) |
最小 2.0V |
| 輸入低電平 (VIL) |
最大 0.8V |
| 輸出高電平 (VOH) |
最小 2.7V (IOH = -400 µA) |
| 輸出低電平 (VOL) |
最大 0.5V (IOL = 8 mA) |
| 傳播延遲 (tPLH/tPHL) |
典型 12 ns (VCC = 5V, CL = 15 pF) |
| 輸出電流 (IOH/IOL) |
-400 µA / 8 mA |
| 工作溫度 |
0°C 至 70°C |
| 封裝 |
24-PDIP |
核心特性
- 8 位雙向總線收發器,帶反相輸出
- 三態輸出,用於總線隔離
- 高抗噪聲能力:典型 VNH = 1.2V, VNL = 1.0V
- 低功耗:每個封裝典型 50 mW
- 輸入和輸出與 TTL 邏輯電平兼容
- 專為存儲器和數據總線應用設計
- ESD 保護超過 2000V,符合 MIL-STD-883 方法 3015
典型應用場景
- 5G 基站控制板中的數據總線隔離
- 工業 PLC I/O 模塊
- 汽車儀表板顯示接口
- 電信交換設備
- 嵌入式系統中的存儲器地址/數據總線緩衝
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74LS649NT 提供全面的供應鏈與批發解決方案。
我們的核心優勢包括:
-
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。
-
現貨庫存,即日發貨:確保現貨充足。下午 4 點前確認訂單,即可安排當天寄出。
-
深港聯動,結算靈活:深圳直發全球,物流高效可靠;支援香港銀行戶口轉賬及多幣種結算。
-
Escrow 擔保交易:支援 Escrow.com 平台交易,保障買賣雙方權益,小批量訂單亦可安心在線下單。
-
BOM 配單與樣板服務:提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。
品質保證與合規
Jasin Chip 承諾所有出貨產品均為原廠正貨,具備完善的品質保證及產品可追溯性。
-
100% 原廠正貨:承諾所有供應零件均為原裝現貨,品質嚴格把關,來源清晰可追溯。
-
符合 RoHS 認證:所有電子元器件均符合國際環保標準及相關安全認證。
-
原廠封裝保護:嚴格保留原廠原始包裝及封條,確保物流過程中的靜電防護 (ESD) 與物理安全。
以上產品均為原廠正貨,提供 BOM 配單及現貨庫存支援,歡迎查詢。
🔥 熱門型號推薦 / Hot Related Models:
SN74ALS10ADBR | SN74BCT541ADBR | SN74AUP1G02DCKT | SN54AS805BJ | SN74HC623DW | SN74LS466DWR | CD4071BNSR
獲取報價或技術手冊 / Need Batch Quote or Datasheet?
Our team provides competitive wholesale pricing for SN74LS649NT.
HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]