SN74LS47D TI BCD-to-7-Segment Decoder | 16-SOIC | 4-Bit Input, Open-Collector Output

Product Overview

The SN74LS47D is a BCD-to-7-segment decoder/driver from Texas Instruments, designed to convert 4-bit Binary-Coded Decimal (BCD) inputs into outputs that drive 7-segment displays. Housed in a 16-pin SOIC package, this device features open-collector outputs capable of sinking up to 24 mA, making it suitable for driving common-anode LED displays. It includes a ripple-blanking input (RBI) and output (RBO) for leading/trailing zero suppression, as well as a lamp test (LT) input for checking all segments. The SN74LS47D operates over a supply voltage range of 4.75 V to 5.25 V and is characterized for operation from 0°C to 70°C.

Detailed Technical Specifications

Key Features

• BCD-to-7-segment decoding with open-collector outputs
• Active-low outputs for driving common-anode displays
• Internal pull-up resistors on inputs
• Ripple-blanking input (RBI) and output (RBO) for zero suppression
• Lamp test (LT) input to illuminate all segments
• 24 mA output sink current capability
• Typical propagation delay of 35 ns
• Wide operating temperature range: 0°C to 70°C

Target Applications

• Digital panel meters (e.g., Fluke 87V multimeter display)
• Industrial process controllers (e.g., Siemens S7-1200 PLC display)
• Automotive dashboard displays (e.g., speedometer, odometer)
• Consumer electronics (e.g., microwave oven timer, digital clock)
• Test and measurement equipment (e.g., oscilloscope readout)
• 5G base station status indicators (e.g., Nokia AirScale system display)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74LS47D. 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

SN74LS47D 是德州儀器（TI）生產的 BCD 轉 7 段解碼器/驅動器，可將 4 位二進制編碼十進制（BCD）輸入轉換為驅動 7 段顯示器的輸出。該器件採用 16 引腳 SOIC 封裝，具有開集電極輸出，可吸收高達 24 mA 的電流，適用於驅動共陽極 LED 顯示器。它包含用於前導/尾隨零抑制的紋波消隱輸入（RBI）和輸出（RBO），以及用於檢查所有段的燈測試（LT）輸入。SN74LS47D 的電源電壓範圍為 4.75 V 至 5.25 V，工作溫度範圍為 0°C 至 70°C。

詳細技術參數

核心特性

• BCD 轉 7 段解碼，開集電極輸出
• 低電平有效輸出，用於驅動共陽極顯示器
• 輸入端內置上拉電阻
• 紋波消隱輸入（RBI）和輸出（RBO），用於零抑制
• 燈測試（LT）輸入，可點亮所有段
• 24 mA 輸出灌電流能力
• 典型傳播延遲 35 ns
• 寬工作溫度範圍：0°C 至 70°C

典型應用場景

• 數字面板表（例如 Fluke 87V 萬用表顯示）
• 工業過程控制器（例如西門子 S7-1200 PLC 顯示）
• 汽車儀表板顯示（例如速度表、里程表）
• 消費電子產品（例如微波爐定時器、數字時鐘）
• 測試與測量設備（例如示波器讀數）
• 5G 基站狀態指示器（例如諾基亞 AirScale 系統顯示）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74LS47D 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]