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Product Overview
The SN74ALS29821DW is a high-performance 8-bit D-type flip-flop from Texas Instruments, featuring non-inverting outputs with 3-state capability. Packaged in a 24-pin SOIC (DW) package, this device is designed for use in bus-oriented systems where high speed and low power consumption are critical. It operates from a 4.5V to 5.5V supply and offers typical propagation delays of 10ns, making it suitable for a wide range of digital applications.
Detailed Technical Specifications
| Parameter |
Value |
| Number of Bits |
8 |
| Logic Family |
ALS |
| Output Type |
3-State, Non-Inverting |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| Propagation Delay (tpd) |
10 ns (typical) |
| Input Voltage (VIH/VIL) |
2.0V / 0.8V |
| Output Current (IOH/IOL) |
-15 mA / 24 mA |
| Operating Temperature |
0°C to 70°C |
| Package |
24-SOIC (DW) |
Key Features
- 8-bit D-type flip-flop with 3-state outputs
- Non-inverting outputs for direct bus interface
- High-speed propagation delay (10 ns typical)
- Low power consumption (ICC = 20 mA typical)
- Wide operating voltage range (4.5V to 5.5V)
- Input clamp diodes for improved noise margin
- Outputs source/sink 24 mA for driving heavy loads
- Industry-standard 24-SOIC package for easy PCB layout
Target Applications
- 5G base station control logic
- Automotive dashboard display controllers
- Industrial PLC I/O modules
- Data communication buffers and registers
- Memory address latching in embedded systems
Global Supply Chain & Wholesale Solutions
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SN74ALS29821DW. Our core advantages include:
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and seals to ensure ESD protection and physical integrity.
產品概述
SN74ALS29821DW 是德州儀器 (TI) 生產的高性能 8 位 D 型觸發器,具有非反相三態輸出。該器件採用 24 引腳 SOIC (DW) 封裝,專為匯流排系統設計,在高速和低功耗方面表現優異。工作電壓範圍為 4.5V 至 5.5V,典型傳播延遲為 10ns,適用於多種數字應用。
詳細技術參數
| 參數 |
數值 |
| 位數 |
8 |
| 邏輯系列 |
ALS |
| 輸出類型 |
三態,非反相 |
| 電源電壓 (VCC) |
4.5V 至 5.5V |
| 傳播延遲 (tpd) |
10 ns (典型值) |
| 輸入電壓 (VIH/VIL) |
2.0V / 0.8V |
| 輸出電流 (IOH/IOL) |
-15 mA / 24 mA |
| 工作溫度 |
0°C 至 70°C |
| 封裝 |
24-SOIC (DW) |
核心特性
- 8 位 D 型觸發器,帶三態輸出
- 非反相輸出,可直接連接匯流排
- 高速傳播延遲 (典型 10ns)
- 低功耗 (典型 ICC = 20 mA)
- 寬工作電壓範圍 (4.5V 至 5.5V)
- 輸入鉗位二極管,改善噪聲容限
- 輸出可提供 24 mA 驅動能力
- 行業標準 24-SOIC 封裝,易於 PCB 佈局
典型應用場景
- 5G 基站控制邏輯
- 汽車儀表盤顯示控制器
- 工業 PLC I/O 模塊
- 數據通信緩衝器和寄存器
- 嵌入式系統中的存儲器地址鎖存
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