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Product Overview
The SN74LS273NSR is a high-performance octal D-type flip-flop with clear, manufactured by Texas Instruments (TI). It features eight edge-triggered D-type flip-flops with individual D inputs and Q outputs, plus a common clock (CP) and a common asynchronous clear (CLR). The device is designed for general-purpose storage applications in digital systems, offering reliable operation over a wide voltage range. Packaged in a 20-pin SO (Small Outline) package, it is suitable for surface-mount technology (SMT) assembly, enabling compact and efficient PCB designs.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.75 V to 5.25 V |
| Input Voltage (VI) |
0 V to 5.5 V |
| Output Voltage (VO) |
0 V to VCC |
| High-Level Input Voltage (VIH) |
2 V (min) |
| Low-Level Input Voltage (VIL) |
0.8 V (max) |
| High-Level Output Current (IOH) |
-0.4 mA |
| Low-Level Output Current (IOL) |
8 mA |
| Propagation Delay (tPLH/tPHL) |
15 ns (typ) at VCC = 5 V, CL = 15 pF |
| Clock Frequency (fmax) |
35 MHz (min) |
| Operating Temperature Range |
0°C to 70°C |
| Package |
20-SO (NSR suffix) |
Key Features
- Eight edge-triggered D-type flip-flops in a single package
- Buffered common clock and asynchronous clear
- Typical propagation delay of 15 ns
- Low power consumption: 22 mW per flip-flop (typical)
- Wide operating voltage range: 4.75 V to 5.25 V
- Input clamp diodes limit high-speed termination effects
- Outputs source/sink 8 mA at 5 V
- Designed for 2-kV ESD protection (HBM)
- RoHS compliant and lead-free
Target Applications
- 5G base station control logic: Used for temporary data storage in beamforming control units
- Automotive dashboard displays: Stores configuration data for instrument cluster drivers
- Industrial automation PLCs: Registers for I/O expansion modules
- Consumer electronics: Remote control decoders and memory registers
- Telecommunications: Buffer registers for data transmission interfaces
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74LS273NSR. 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
SN74LS273NSR 是一款高性能八路 D 型觸發器(帶清零功能),由德州儀器(TI)生產。它包含八個邊沿觸發的 D 型觸發器,具有獨立的 D 輸入和 Q 輸出,以及一個公共時鐘(CP)和一個公共異步清零(CLR)。該器件專為數字系統中的通用存儲應用而設計,可在寬電壓範圍內可靠工作。採用 20 引腳 SO(小外形)封裝,適合表面貼裝技術(SMT)組裝,實現緊湊高效的 PCB 設計。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.75 V 至 5.25 V |
| 輸入電壓 (VI) |
0 V 至 5.5 V |
| 輸出電壓 (VO) |
0 V 至 VCC |
| 高電平輸入電壓 (VIH) |
2 V(最小值) |
| 低電平輸入電壓 (VIL) |
0.8 V(最大值) |
| 高電平輸出電流 (IOH) |
-0.4 mA |
| 低電平輸出電流 (IOL) |
8 mA |
| 傳播延遲 (tPLH/tPHL) |
15 ns(典型值,VCC = 5 V,CL = 15 pF) |
| 時鐘頻率 (fmax) |
35 MHz(最小值) |
| 工作溫度範圍 |
0°C 至 70°C |
| 封裝 |
20-SO(NSR 後綴) |
核心特性
- 單個封裝內集成八個邊沿觸發的 D 型觸發器
- 緩衝公共時鐘和異步清零
- 典型傳播延遲 15 ns
- 低功耗:每個觸發器典型功耗 22 mW
- 寬工作電壓範圍:4.75 V 至 5.25 V
- 輸入鉗位二極管限制高速端接效應
- 輸出在 5 V 時可提供 8 mA 的拉/灌電流
- 設計支持 2 kV ESD 保護(HBM)
- 符合 RoHS 標準且無鉛
典型應用場景
- 5G 基站控制邏輯:用於波束成形控制單元的臨時數據存儲
- 汽車儀表盤顯示:存儲儀表集群驅動器的配置數據
- 工業自動化 PLC:I/O 擴展模塊的寄存器
- 消費電子:遙控解碼器和存儲寄存器
- 電信:數據傳輸接口的緩衝寄存器
環球供應鏈與批發合作夥伴方案
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我們的核心優勢包括:
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