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Product Overview
The SN74ALS561ANS is a high-performance 8-bit synchronous binary counter from Texas Instruments, designed for advanced digital systems requiring precise counting and frequency division. It features a synchronous load capability, allowing parallel data entry on the rising edge of the clock, and an asynchronous master reset for immediate clearing. The device operates from a 4.5V to 5.5V supply and is characterized for operation from 0°C to 70°C. Housed in a 20-pin SOP package, it offers a compact solution for various counting applications.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
4.5V to 5.5V |
| Operating Temperature |
0°C to 70°C |
| Counting Sequence |
Binary (0 to 255) |
| Clock Frequency (max) |
30 MHz |
| Propagation Delay (tpd) |
15 ns (typical) |
| Output Drive Capability |
±24 mA |
| Package |
20-pin SOP (NS) |
Key Features
- 8-bit synchronous binary counter with synchronous load
- Asynchronous master reset (MR) for immediate clearing
- Ripple carry output for cascading multiple counters
- Edge-triggered clocking on rising edge
- Low power consumption (typical ICC = 32 mA)
- Inputs and outputs are TTL-compatible
- Available in SOP-20 package
Target Applications
- Digital frequency dividers in 5G base station timing modules
- Event counters in automotive dashboard displays
- Programmable timers in industrial control systems
- Address generation in memory controllers
- Data acquisition systems requiring sequential channel selection
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
SN74ALS561ANS. 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
SN74ALS561ANS 是德州儀器生產的高性能8位同步二進制計數器,專為需要精確計數和分頻的先進數字系統設計。它具有同步加載功能,允許在時鐘上升沿並行輸入數據,以及異步主復位功能,可立即清零。器件工作電壓為4.5V至5.5V,工作溫度範圍為0°C至70°C。採用20引腳SOP封裝,為各種計數應用提供緊湊解決方案。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
4.5V 至 5.5V |
| 工作溫度 |
0°C 至 70°C |
| 計數序列 |
二進制 (0 至 255) |
| 最大時鐘頻率 |
30 MHz |
| 傳播延遲 (tpd) |
15 ns (典型值) |
| 輸出驅動能力 |
±24 mA |
| 封裝 |
20引腳 SOP (NS) |
核心特性
- 8位同步二進制計數器,帶同步加載
- 異步主復位 (MR) 可立即清零
- 級聯輸出,便於多個計數器級聯
- 上升沿觸發時鐘
- 低功耗 (典型 ICC = 32 mA)
- 輸入輸出與TTL兼容
- 提供SOP-20封裝
典型應用場景
- 5G基站定時模塊中的數字分頻器
- 汽車儀表盤顯示中的事件計數器
- 工業控制系統中的可編程定時器
- 存儲控制器中的地址生成
- 需要順序通道選擇的數據採集系統
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 SN74ALS561ANS 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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