SN74LS221N TI Monostable Multivibrator | 16-PDIP | Dual, Schmitt-Trigger Inputs

Product Overview

The SN74LS221N is a dual monostable multivibrator from Texas Instruments, featuring Schmitt-trigger inputs for excellent noise immunity and stable triggering. Housed in a 16-pin PDIP package, this device is designed for pulse generation, timing, and delay applications. Each multivibrator has two trigger inputs (A and B) and a clear input, allowing flexible control. The output pulse width is determined by external timing components (R_ext and C_ext), with a range from nanoseconds to seconds. The SN74LS221N is part of the 74LS family, offering low power consumption and high speed.

Detailed Technical Specifications

Key Features

• Dual monostable multivibrator with Schmitt-trigger inputs
• Retriggerable and resettable
• Output pulse width programmable via external R and C
• Low power consumption: 20 mW per multivibrator typical
• High noise immunity: 0.4 V typical
• Wide pulse width range: nanoseconds to seconds
• Compatible with TTL and LS logic families

Target Applications

• Pulse generation in 5G base station control boards
• Timing circuits in automotive dashboard displays
• Debouncing switches in industrial control panels
• Delay lines in medical imaging equipment (e.g., ultrasound)
• Frequency division in consumer electronics (e.g., set-top boxes)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS221N. Our core advantages include:

• 24/7 Global Customer Support: Professional team providing instant quotes and technical support worldwide.
• In-stock Inventory, Same-day Shipping: We maintain localized stock; orders confirmed before 4 PM are shipped the same day.
• HK-SZ Synergy, Flexible Settlement: Direct global shipping from Shenzhen with support for HK bank transfers and multi-currency.
• Escrow Secured Transactions: We support Escrow.com for secure transactions, ensuring peace of mind for batch orders.
• 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.

• 100% Original & Authentic: All components are guaranteed to be authentic with strict quality control.
• RoHS Compliant: All electronic components comply with international environmental and safety standards.
• Original Factory Packaging: We maintain original factory packaging and seals to ensure ESD protection and physical integrity.

產品概述

SN74LS221N 是德州儀器推出的雙單穩態多諧振盪器，具有施密特觸發輸入，提供優異的抗噪聲能力和穩定的觸發性能。該器件採用 16 引腳 PDIP 封裝，適用於脈衝產生、定時和延遲應用。每個多諧振盪器有兩個觸發輸入（A 和 B）和一個清除輸入，可實現靈活控制。輸出脈衝寬度由外部定時元件（R_ext 和 C_ext）決定，範圍從納秒到秒。SN74LS221N 屬於 74LS 系列，具有低功耗和高速度的特點。

詳細技術參數

核心特性

• 雙單穩態多諧振盪器，帶施密特觸發輸入
• 可重觸發和復位
• 輸出脈衝寬度可通過外部電阻和電容編程
• 低功耗：每個多諧振盪器典型值 20 mW
• 高抗噪聲能力：典型值 0.4 V
• 寬脈衝寬度範圍：納秒至秒
• 與 TTL 和 LS 邏輯系列兼容

典型應用場景

• 5G 基站控制板中的脈衝產生
• 汽車儀表盤顯示中的定時電路
• 工業控制面板中的按鍵消抖
• 醫療成像設備（如超聲波）中的延遲線
• 消費電子（如機頂盒）中的分頻

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74LS221N 提供全面的供應鏈與批發解決方案。 我們的核心優勢包括：

• 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。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• Escrow 擔保交易：支援 Escrow.com 平台交易，保障買賣雙方權益，小批量訂單亦可安心在線下單。
• BOM 配單與樣板服務：提供樣板測試及認證支援。專注一站式 BOM 配套及緊急缺料採購服務。

品質保證與合規

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。

• 100% 原廠正貨：承諾所有供應零件均為原裝現貨，品質嚴格把關，來源清晰可追溯。
• 符合 RoHS 認證：所有電子元器件均符合國際環保標準及相關安全認證。
• 原廠封裝保護：嚴格保留原廠原始包裝及封條，確保物流過程中的靜電防護 (ESD) 與物理安全。

以上產品均為原廠正貨，提供 BOM 配單及現貨庫存支援，歡迎查詢。

HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]