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Product Overview
The SN74AS867NT is a high-performance 8-bit synchronous binary counter from Texas Instruments, designed for use in advanced digital systems requiring precise counting and frequency division. Housed in a 24-pin PDIP package, this device operates at a maximum clock frequency of 25 MHz and features a wide supply voltage range of 4.5V to 5.5V. It incorporates synchronous counting, asynchronous clear, and parallel load capabilities, making it ideal for applications in telecommunications, industrial control, and computing.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (Vcc) |
4.5V to 5.5V |
| Maximum Clock Frequency |
25 MHz |
| Propagation Delay (tpd) |
15 ns (typical) |
| Output Drive Capability |
±24 mA |
| Operating Temperature Range |
0°C to 70°C |
| Package Type |
24-PDIP |
| Logic Family |
AS (Advanced Schottky) |
| Number of Bits |
8 |
| Counting Mode |
Synchronous binary up |
| Clear Type |
Asynchronous active low |
| Load Type |
Synchronous parallel load |
Key Features
- 8-bit synchronous binary counter with parallel load and asynchronous clear
- High-speed operation: 25 MHz maximum clock frequency
- Low power consumption: typical 50 mW at 5V
- Schottky-clamped transistors for high performance
- Wide operating voltage range: 4.5V to 5.5V
- Outputs source/sink 24 mA for driving heavy loads
- Standard 24-pin PDIP package for easy prototyping
Target Applications
- 5G base station timing and synchronization modules
- Automotive dashboard instrument clusters
- Industrial programmable logic controllers (PLCs)
- Digital frequency synthesizers and dividers
- Data acquisition systems requiring event counting
- Test and measurement equipment (e.g., frequency counters)
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74AS867NT. 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
SN74AS867NT 是德州儀器推出的一款高性能8位同步二進制計數器,採用24引腳PDIP封裝,適用於需要精確計數和分頻的先進數字系統。該器件最高時鐘頻率為25 MHz,支持4.5V至5.5V的寬電源電壓範圍,具備同步計數、異步清零和並行加載功能,廣泛應用於電信、工業控制和計算機領域。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (Vcc) |
4.5V 至 5.5V |
| 最高時鐘頻率 |
25 MHz |
| 傳播延遲 (tpd) |
15 ns (典型值) |
| 輸出驅動能力 |
±24 mA |
| 工作溫度範圍 |
0°C 至 70°C |
| 封裝類型 |
24-PDIP |
| 邏輯系列 |
AS (先進肖特基) |
| 位數 |
8 |
| 計數模式 |
同步二進制加計數 |
| 清零類型 |
異步低電平有效 |
| 加載類型 |
同步並行加載 |
核心特性
- 8位同步二進制計數器,支持並行加載和異步清零
- 高速運行:最高時鐘頻率25 MHz
- 低功耗:典型值50 mW(5V時)
- 肖特基箝位晶體管,性能優異
- 寬工作電壓範圍:4.5V至5.5V
- 輸出可源/灌24 mA,驅動重負載
- 標準24引腳PDIP封裝,便於原型設計
典型應用場景
- 5G基站定時與同步模塊
- 汽車儀表盤儀表組
- 工業可編程邏輯控制器 (PLC)
- 數字頻率合成器與分頻器
- 需要事件計數的數據採集系統
- 測試與測量設備(如頻率計數器)
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74AS867NT 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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