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Product Overview
The CD74HC147PWT is a high-speed CMOS 10-line to 4-line priority encoder from Texas Instruments (TI). It encodes 10 active-low inputs (I1–I9) into a 4-bit binary code (A0–A3), with I9 having the highest priority. The device features low power consumption, high noise immunity, and is designed for use in digital systems requiring efficient data encoding. Housed in a compact 16-TSSOP package, it is ideal for space-constrained applications.
Detailed Technical Specifications
| Parameter |
Value |
| Supply Voltage (VCC) |
2V to 6V |
| Input Voltage (VI) |
0V to VCC |
| Output Voltage (VO) |
0V to VCC |
| High-Level Input Voltage (VIH) |
3.15V (min) at VCC=4.5V |
| Low-Level Input Voltage (VIL) |
1.35V (max) at VCC=4.5V |
| High-Level Output Current (IOH) |
-4mA (max) at VCC=4.5V |
| Low-Level Output Current (IOL) |
4mA (max) at VCC=4.5V |
| Propagation Delay (tpd) |
15ns (typ) at VCC=5V, CL=15pF |
| Power Dissipation (PD) |
500mW |
| Operating Temperature |
-55°C to +125°C |
| Package |
16-TSSOP |
Key Features
- High-speed CMOS technology
- 10-line to 4-line priority encoding
- Active-low inputs and outputs
- Wide supply voltage range: 2V to 6V
- Low power consumption: 80µA (max) at 25°C
- High noise immunity: typical VNIH = VNIL = 28% VCC
- Balanced propagation delays
- Standardized symmetrical output characteristics
- ESD protection exceeds 2000V per MIL-STD-883, Method 3015
- Available in 16-TSSOP package for space-saving designs
Target Applications
- Data encoding in 5G base station control boards
- Priority interrupt handling in automotive dashboard systems
- Keypad encoding for industrial control panels
- Address decoding in memory systems
- Digital logic systems requiring priority arbitration
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
CD74HC147PWT. Our core advantages include:
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24/7 Global Customer Support: Professional team providing instant
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orders confirmed before 4 PM are shipped the same day.
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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
CD74HC147PWT 是德州儀器 (TI) 出品的高速 CMOS 10 線轉 4 線優先編碼器。它將 10 個低電平有效輸入 (I1–I9) 編碼為 4 位二進制碼 (A0–A3),其中 I9 具有最高優先級。該器件具有低功耗、高抗噪聲能力,適用於需要高效數據編碼的數字系統。採用緊湊的 16-TSSOP 封裝,適合空間受限的應用。
詳細技術參數
| 參數 |
數值 |
| 電源電壓 (VCC) |
2V 至 6V |
| 輸入電壓 (VI) |
0V 至 VCC |
| 輸出電壓 (VO) |
0V 至 VCC |
| 高電平輸入電壓 (VIH) |
3.15V (最小值) 在 VCC=4.5V 時 |
| 低電平輸入電壓 (VIL) |
1.35V (最大值) 在 VCC=4.5V 時 |
| 高電平輸出電流 (IOH) |
-4mA (最大值) 在 VCC=4.5V 時 |
| 低電平輸出電流 (IOL) |
4mA (最大值) 在 VCC=4.5V 時 |
| 傳播延遲 (tpd) |
15ns (典型值) 在 VCC=5V, CL=15pF 時 |
| 功耗 (PD) |
500mW |
| 工作溫度 |
-55°C 至 +125°C |
| 封裝 |
16-TSSOP |
核心特性
- 高速 CMOS 技術
- 10 線轉 4 線優先編碼
- 低電平有效輸入和輸出
- 寬電源電壓範圍:2V 至 6V
- 低功耗:25°C 時最大 80µA
- 高抗噪聲能力:典型 VNIH = VNIL = 28% VCC
- 平衡的傳播延遲
- 標準化對稱輸出特性
- ESD 保護超過 2000V(按 MIL-STD-883,方法 3015)
- 採用 16-TSSOP 封裝,節省空間
典型應用場景
- 5G 基站控制板中的數據編碼
- 汽車儀表盤系統中的優先級中斷處理
- 工業控制面板的鍵盤編碼
- 存儲器系統中的地址解碼
- 需要優先級仲裁的數字邏輯系統
環球供應鏈與批發合作夥伴方案
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