{"product_id":"ti-pca9554dbr-16-ssop","title":"PCA9554DBR TI I2C GPIO Expander | 16-SSOP | 8-bit, 400kHz","description":"\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin-bottom:30px;\n            border-bottom:1px solid #f0f0f0; padding-bottom:20px;\"\u003e\n  \u003cspan style=\"background:#f3e5f5; color:#7b1fa2; padding:6px 14px; border-radius:4px;\n               font-size:12px; font-weight:bold; border:1px solid #e1bee7;\"\u003e🧪 SAMPLE SUPPORT\u003c\/span\u003e\n  \u003cspan style=\"background:#e8f5e9; color:#2e7d32; padding:6px 14px; border-radius:4px;\n               font-size:12px; font-weight:bold; border:1px solid #c8e6c9;\"\u003e✅ 100% Original \u0026amp; Traceable\u003c\/span\u003e\n  \u003cspan style=\"background:#e3f2fd; color:#1565c0; padding:6px 14px; border-radius:4px;\n               font-size:12px; font-weight:bold; border:1px solid #bbdefb;\"\u003e🚀 Inquiry Today, Ship Today\u003c\/span\u003e\n  \u003cspan style=\"background:#fff3e0; color:#ef6c00; padding:6px 14px; border-radius:4px;\n               font-size:12px; font-weight:bold; border:1px solid #ffe0b2;\"\u003e🛡️ Escrow.com Secured Payment\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe PCA9554DBR from Texas Instruments is a 8-bit I²C-bus and SMBus I\/O expander designed for 2.3-V to 5.5-V VCC operation. It provides general-purpose remote I\/O expansion for most microcontroller families via the I²C interface (serial clock and serial data). The device features an 8-bit configuration register, input register, output register, and polarity inversion register. The system master can enable the I\/Os as either inputs or outputs by writing to the I\/O configuration register. The data for each input or output is kept in the corresponding input or output register. The polarity of the input port register can be inverted with the polarity inversion register. The device has an open-drain interrupt output (INT) which is activated when any input state differs from its corresponding input port register state. The PCA9554DBR is available in a 16-pin SSOP package.\u003c\/p\u003e\u003ch2\u003eDetailed Technical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (VCC)\u003c\/td\u003e\n\u003ctd\u003e2.3 V to 5.5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI²C Bus Frequency\u003c\/td\u003e\n\u003ctd\u003eUp to 400 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of I\/O Pins\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e16-SSOP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current per I\/O\u003c\/td\u003e\n\u003ctd\u003e±10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterrupt Output\u003c\/td\u003e\n\u003ctd\u003eOpen-drain, active low\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESD Protection\u003c\/td\u003e\n\u003ctd\u003eHBM \u0026gt; 2000 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e8-bit I\/O expander for I²C-bus and SMBus\u003c\/li\u003e\n\u003cli\u003eOperating supply voltage range: 2.3 V to 5.5 V\u003c\/li\u003e\n\u003cli\u003eLow standby current consumption\u003c\/li\u003e\n\u003cli\u003eI²C to parallel port expander\u003c\/li\u003e\n\u003cli\u003eOpen-drain interrupt output\u003c\/li\u003e\n\u003cli\u003e5 V tolerant I\/Os\u003c\/li\u003e\n\u003cli\u003e400 kHz I²C bus speed\u003c\/li\u003e\n\u003cli\u003ePolarity inversion register\u003c\/li\u003e\n\u003cli\u003eInternal power-on reset\u003c\/li\u003e\n\u003cli\u003eNo glitch on power-up\u003c\/li\u003e\n\u003cli\u003ePackage: 16-pin SSOP (DB)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTarget Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e5G base station control and monitoring\u003c\/li\u003e\n\u003cli\u003eAutomotive dashboard and infotainment systems\u003c\/li\u003e\n\u003cli\u003eIndustrial PLC I\/O expansion\u003c\/li\u003e\n\u003cli\u003eServer and networking equipment (e.g., fan control, LED indication)\u003c\/li\u003e\n\u003cli\u003eSmart home devices (e.g., smart thermostat, lighting control)\u003c\/li\u003e\n\u003cli\u003eMedical equipment (e.g., patient monitoring systems)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"border-bottom:2px solid #eee; padding-bottom:10px; margin-top:40px;\"\u003e\n  Global Supply Chain \u0026amp; Wholesale Solutions\n\u003c\/h2\u003e\n\u003cp\u003eAt Jasin Chip, we provide professional supply chain and wholesale solutions for\n\u003cstrong\u003ePCA9554DBR\u003c\/strong\u003e. Our core advantages include:\u003c\/p\u003e\n\u003cul style=\"line-height:1.8; color:#444;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24\/7 Global Customer Support:\u003c\/strong\u003e Professional team providing instant\n      quotes and technical support worldwide.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIn-stock Inventory, Same-day Shipping:\u003c\/strong\u003e We maintain localized stock;\n      orders confirmed before 4 PM are shipped the same day.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHK-SZ Synergy, Flexible Settlement:\u003c\/strong\u003e Direct global shipping from\n      Shenzhen with support for HK bank transfers and multi-currency.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEscrow Secured Transactions:\u003c\/strong\u003e We support Escrow.com for secure\n      transactions, ensuring peace of mind for batch orders.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBOM Kitting \u0026amp; Sampling Services:\u003c\/strong\u003e Specialized sourcing for\n      testing samples and urgent shortage components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"border-bottom:2px solid #eee; padding-bottom:10px; margin-top:40px;\"\u003e\n  Quality Assurance \u0026amp; Compliance\n\u003c\/h2\u003e\n\u003cp\u003eJasin Chip guarantees that all delivered products are 100% original factory stock\nwith full quality assurance and traceability.\u003c\/p\u003e\n\u003cul style=\"line-height:1.8; color:#444;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% Original \u0026amp; Authentic:\u003c\/strong\u003e All components are guaranteed to\n      be authentic with strict quality control.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoHS Compliant:\u003c\/strong\u003e All electronic components comply with international\n      environmental and safety standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOriginal Factory Packaging:\u003c\/strong\u003e We maintain original factory packaging\n      and seals to ensure ESD protection and physical integrity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr style=\"margin:50px 0; border:0; border-top:2px dashed #eee;\"\u003e\n\u003ch2\u003e產品概述\u003c\/h2\u003e\u003cp\u003ePCA9554DBR 是德州儀器（TI）的一款 8 位 I²C 匯流排和 SMBus I\/O 擴展器，工作電壓範圍為 2.3 V 至 5.5 V。它通過 I²C 介面（串列時鐘和串列資料）為大多數微控制器系列提供通用遠端 I\/O 擴展。該器件具有 8 位配置暫存器、輸入暫存器、輸出暫存器和極性反轉暫存器。系統主機可以通過寫入 I\/O 配置暫存器將 I\/O 設置為輸入或輸出。每個輸入或輸出的資料存儲在相應的輸入或輸出暫存器中。輸入埠暫存器的極性可以通過極性反轉暫存器反轉。該器件具有開漏中斷輸出 (INT)，當任何輸入狀態與其對應的輸入埠暫存器狀態不同時，該輸出被啟動。PCA9554DBR 採用 16 引腳 SSOP 封裝。\u003c\/p\u003e\u003ch2\u003e詳細技術參數\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e參數\u003c\/th\u003e\n\u003cth\u003e數值\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e電源電壓 (VCC)\u003c\/td\u003e\n\u003ctd\u003e2.3 V 至 5.5 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI²C 匯流排頻率\u003c\/td\u003e\n\u003ctd\u003e最高 400 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eI\/O 引腳數量\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e工作溫度範圍\u003c\/td\u003e\n\u003ctd\u003e-40°C 至 +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e封裝\u003c\/td\u003e\n\u003ctd\u003e16-SSOP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e每個 I\/O 輸出電流\u003c\/td\u003e\n\u003ctd\u003e±10 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e中斷輸出\u003c\/td\u003e\n\u003ctd\u003e開漏，低電平有效\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eESD 保護\u003c\/td\u003e\n\u003ctd\u003eHBM \u0026gt; 2000 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003e核心特性\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e用於 I²C 匯流排和 SMBus 的 8 位 I\/O 擴展器\u003c\/li\u003e\n\u003cli\u003e工作電源電壓範圍：2.3 V 至 5.5 V\u003c\/li\u003e\n\u003cli\u003e低待機電流消耗\u003c\/li\u003e\n\u003cli\u003eI²C 到並行埠擴展器\u003c\/li\u003e\n\u003cli\u003e開漏中斷輸出\u003c\/li\u003e\n\u003cli\u003e5 V 容限 I\/O\u003c\/li\u003e\n\u003cli\u003e400 kHz I²C 匯流排速度\u003c\/li\u003e\n\u003cli\u003e極性反轉暫存器\u003c\/li\u003e\n\u003cli\u003e內部上電復位\u003c\/li\u003e\n\u003cli\u003e上電無毛刺\u003c\/li\u003e\n\u003cli\u003e封裝：16 引腳 SSOP (DB)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003e典型應用場景\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e5G 基站控制與監控\u003c\/li\u003e\n\u003cli\u003e汽車儀錶盤和資訊娛樂系統\u003c\/li\u003e\n\u003cli\u003e工業 PLC I\/O 擴展\u003c\/li\u003e\n\u003cli\u003e伺服器和網路設備（例如風扇控制、LED 指示）\u003c\/li\u003e\n\u003cli\u003e智慧家居設備（例如智慧恒溫器、照明控制）\u003c\/li\u003e\n\u003cli\u003e醫療設備（例如病人監護系統）\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"border-bottom:2px solid #eee; padding-bottom:10px; margin-top:40px;\"\u003e\n  環球供應鏈與批發合作夥伴方案\n\u003c\/h2\u003e\n\u003cp\u003e在 Jasin Chip，我們為 \u003cstrong\u003ePCA9554DBR\u003c\/strong\u003e 提供全面的供應鏈與批發解決方案。\n我們的核心優勢包括：\u003c\/p\u003e\n\u003cul style=\"line-height:1.8; color:#444;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e全天候環球客戶支援：\u003c\/strong\u003e專業團隊為您提供即時報價及技術支援，無需漫長等待。\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e現貨庫存，即日發貨：\u003c\/strong\u003e確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e深港聯動，結算靈活：\u003c\/strong\u003e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。\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEscrow 擔保交易：\u003c\/strong\u003e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。\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBOM 配單與樣板服務：\u003c\/strong\u003e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。\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2 style=\"border-bottom:2px solid #eee; padding-bottom:10px; margin-top:40px;\"\u003e\n  品質保證與合規\n\u003c\/h2\u003e\n\u003cp\u003eJasin 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。\u003c\/p\u003e\n\u003cul style=\"line-height:1.8; color:#444;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% 原廠正貨：\u003c\/strong\u003e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。\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e符合 RoHS 認證：\u003c\/strong\u003e所有電子元器件均符合國際環保標準及相關安全認證。\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e原廠封裝保護：\u003c\/strong\u003e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。\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"font-size:14px; color:#666;\"\u003e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。\u003c\/p\u003e\n\n\u003cdiv style=\"margin:25px 0; padding:15px; border:1px solid #eee;\n            border-left:5px solid #2c3e50; background-color:#fcfcfc;\"\u003e\n  \u003cstrong style=\"font-size:16px; color:#2c3e50;\"\u003e🔥 熱門型號推薦 \/ Hot Related Models:\u003c\/strong\u003e\u003cbr\u003e\n  \u003cp style=\"margin-top:10px; color:#666; font-size:14px; line-height:1.8; word-break:break-all;\"\u003e\n    CD74HCT373M | TLC339CDBR | TLV9024QDRQ1 | SN74LVTH16373DGG | TL16CP754CIPM\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#2c3e50; color:white; padding:35px; text-align:center; border-radius:8px; margin:40px 0;\"\u003e\n  \u003ch3 style=\"margin:0; color:white; font-size:22px;\"\u003e獲取報價或技術手冊 \/ Need Batch Quote or Datasheet?\u003c\/h3\u003e\n  \u003cp style=\"margin:15px 0 25px 0; font-size:15px; color:#bdc3c7;\"\u003e\n    Our team provides competitive wholesale pricing for \u003cstrong\u003ePCA9554DBR\u003c\/strong\u003e.\n  \u003c\/p\u003e\n  \u003cdiv style=\"display:flex; justify-content:center; gap:15px;\"\u003e\n    \u003ca href=\"https:\/\/wa.me\/85252099691\" target=\"_blank\" rel=\"noopener\" style=\"background:#f39c12; color:white; padding:14px 35px; text-decoration:none;\n              border-radius:5px; font-weight:bold; font-size:16px;\"\u003e\n      立即諮詢 \/ Inquiry Now\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:12px; color:#7f8c8d; text-align:center; line-height:1.6; margin-top:40px;\"\u003e\n  \u003cstrong\u003eHONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED\u003c\/strong\u003e\u003cbr\u003e\n  Trusted Partner for Automotive, Industrial, and Hard-to-find Components.\u003cbr\u003e\n  WhatsApp: +852 5209 9691 | Email: jason@jasinchip.com.hk\n\u003c\/p\u003e\n","brand":"TI","offers":[{"title":"Default Title","offer_id":51726058389720,"sku":"ti-pca9554dbr-16-ssop","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0791\/1446\/9592\/files\/296_7E4040065_7EDB_7E16_7071f199-bbcb-408b-9241-801120f2c001.jpg?v=1779900048","url":"https:\/\/www.jasinchip.com.hk\/products\/ti-pca9554dbr-16-ssop","provider":"HONG KONG JASIN SEMICONDUCTOR TECHNOLOGY COMPANY LIMITED","version":"1.0","type":"link"}