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Product Overview
The CD74HC4538NSR is a high-speed CMOS dual precision monostable multivibrator from Texas Instruments. It features two independent monostable multivibrators with Schmitt-trigger inputs for noise immunity. The device operates over a wide supply voltage range of 2V to 6V and provides precise pulse width control via external resistors and capacitors. Housed in a 16-pin SOIC package, it is ideal for applications requiring accurate timing, pulse shaping, and delay generation.
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 Output Current (IOH) |
-4 mA (at VCC=4.5V) |
| Low-Level Output Current (IOL) |
4 mA (at VCC=4.5V) |
| Propagation Delay (tPLH/tPHL) |
25 ns (typical at VCC=5V, CL=15pF) |
| Maximum Clock Frequency |
5 MHz |
| Operating Temperature Range |
-55°C to +125°C |
| Package |
16-SO (SOIC-16) |
Key Features
- Dual independent monostable multivibrators
- Schmitt-trigger inputs for slow or noisy input signals
- Wide supply voltage range: 2V to 6V
- Low power consumption: 80 µA (max) at VCC=6V
- Retriggerable and non-retriggerable modes
- Output pulse width controlled by external R and C
- Compatible with TTL inputs
- ESD protection exceeds 2000V per MIL-STD-883
Target Applications
- 5G base station timing circuits
- Automotive dashboard display timing
- Industrial automation pulse generation
- Medical device delay circuits
- Consumer electronics remote control decoding
Global Supply Chain & Wholesale Solutions
At Jasin Chip, we provide professional supply chain and wholesale solutions for
CD74HC4538NSR. 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
CD74HC4538NSR 是德州儀器推出的高速 CMOS 雙精密單穩態多諧振盪器。它包含兩個獨立的單穩態多諧振盪器,具有施密特觸發輸入以增強抗噪性。該器件可在 2V 至 6V 的寬電源電壓範圍內工作,並通過外部電阻和電容實現精確的脈衝寬度控制。採用 16 引腳 SOIC 封裝,適用於需要精確定時、脈衝整形和延遲生成的應用。
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 |
| 高電平輸出電流 (IOH) |
-4 mA (VCC=4.5V 時) |
| 低電平輸出電流 (IOL) |
4 mA (VCC=4.5V 時) |
| 傳播延遲 (tPLH/tPHL) |
25 ns (典型值,VCC=5V, CL=15pF) |
| 最大時鐘頻率 |
5 MHz |
| 工作溫度範圍 |
-55°C 至 +125°C |
| 封裝 |
16-SO (SOIC-16) |
核心特性
- 雙獨立單穩態多諧振盪器
- 施密特觸發輸入,適用於緩慢或噪聲輸入信號
- 寬電源電壓範圍:2V 至 6V
- 低功耗:VCC=6V 時最大 80 µA
- 可重觸發和不可重觸發模式
- 輸出脈衝寬度由外部 R 和 C 控制
- 與 TTL 輸入兼容
- ESD 保護超過 2000V(符合 MIL-STD-883)
典型應用場景
- 5G 基站定時電路
- 汽車儀表盤顯示定時
- 工業自動化脈衝生成
- 醫療設備延遲電路
- 消費電子遙控解碼
環球供應鏈與批發合作夥伴方案
在 Jasin Chip,我們為 CD74HC4538NSR 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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Jasin Chip 承諾所有出貨產品均為原廠正貨,具備完善的品質保證及產品可追溯性。
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