SN74ACT8990FNR TI Test Equipment | 44-PLCC (16.58X16.58) | 10MHz, 5V

Product Overview

The SN74ACT8990FNR from Texas Instruments is a high-performance test bus controller designed for boundary-scan testing (IEEE Std 1149.1). It provides a complete interface between a host processor and a test access port (TAP) on a target board, enabling efficient testing of digital circuits. Housed in a 44-pin PLCC package (16.58x16.58 mm), this device operates at a maximum clock frequency of 10 MHz and supports a wide supply voltage range of 4.5V to 5.5V. Its robust design ensures reliable operation in demanding industrial and telecommunications environments.

Detailed Technical Specifications

Key Features

• Compliant with IEEE Std 1149.1-1990 boundary-scan standard
• Supports test clock frequencies up to 10 MHz
• Wide operating voltage range: 4.5V to 5.5V
• Industrial temperature range: -40°C to +85°C
• Compact 44-pin PLCC package for space-constrained designs
• Low power consumption with high output drive
• Direct interface to host processor via 8-bit parallel bus
• Programmable test modes for flexible testing

Target Applications

The SN74ACT8990FNR is ideal for boundary-scan testing in complex digital systems. Specific applications include:

• 5G base station control boards: used for testing high-speed digital interconnects and FPGA configurations
• Automotive dashboard electronics: ensures reliable testing of infotainment and driver assistance modules
• Industrial PLCs: facilitates in-system programming and fault diagnosis
• Telecommunications switches: enables efficient testing of backplane and line card interfaces
• Medical imaging equipment: supports boundary-scan testing of high-density PCBs

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for SN74ACT8990FNR. 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

SN74ACT8990FNR 是德州儀器（TI）推出的一款高性能測試匯流排控制器，專為符合 IEEE Std 1149.1 標準的邊界掃描測試設計。該器件在主處理器和目標板的測試存取埠（TAP）之間提供完整介面，實現數位電路的高效測試。採用 44 引腳 PLCC 封裝（16.58x16.58 mm），最高工作時脈頻率為 10 MHz，支援 4.5V 至 5.5V 的寬電源電壓範圍。其堅固的設計確保在工業和電信等嚴苛環境中可靠運行。

詳細技術參數

核心特性

• 符合 IEEE Std 1149.1-1990 邊界掃描標準
• 支援高達 10 MHz 的測試時脈頻率
• 寬工作電壓範圍：4.5V 至 5.5V
• 工業級溫度範圍：-40°C 至 +85°C
• 緊湊的 44 引腳 PLCC 封裝，適合空間受限設計
• 低功耗，高輸出驅動能力
• 通過 8 位元並行匯流排直接與主處理器介面
• 可程式設計測試模式，靈活測試

典型應用場景

SN74ACT8990FNR 適用於複雜數位系統的邊界掃描測試。具體應用包括：

• 5G 基地台控制板：用於測試高速數位互連和 FPGA 配置
• 汽車儀表板電子設備：確保資訊娛樂和駕駛輔助模組的可靠測試
• 工業 PLC：便於系統內程式設計和故障診斷
• 電信交換機：高效測試背板和線卡介面
• 醫療影像設備：支援高密度 PCB 的邊界掃描測試

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 SN74ACT8990FNR 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。
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• 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
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