PCA9554ADW TI I2C GPIO Expander | 16-SOIC | 8-bit, 2.3V-5.5V

Product Overview

The PCA9554ADW from Texas Instruments is a 16-pin CMOS I2C-bus GPIO expander providing 8-bit general purpose parallel input/output expansion for microcontrollers. It operates from a 2.3V to 5.5V supply and supports up to 400 kHz I2C clock frequency. The device features an open-drain interrupt output, three hardware address pins allowing up to eight devices on the same bus, and low standby current consumption. Housed in a 16-SOIC package, it is ideal for applications requiring additional I/O lines in space-constrained designs.

Detailed Technical Specifications

Key Features

• 8-bit bidirectional I/O ports with internal pull-up resistors
• I2C interface with up to 400 kHz clock rate
• Three hardware address pins for up to 8 devices on the same bus
• Open-drain active-low interrupt output
• Low standby current consumption (1 µA typical)
• Wide supply voltage range (2.3V to 5.5V)
• Input/output configuration registers
• Polarity inversion register
• ESD protection exceeds 2000V HBM per JESD22-A114
• Latch-up performance exceeds 100 mA per JESD78

Target Applications

• 5G base station control and monitoring (e.g., antenna tilt, power management)
• Automotive dashboard switches and LED control
• Industrial PLC I/O expansion
• Server and telecom equipment status indication
• Consumer electronics (e.g., smart home hubs, gaming consoles)
• Medical devices (e.g., patient monitoring panels)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCA9554ADW. 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

PCA9554ADW 是德州儀器（TI）推出的16引腳CMOS I2C匯流排GPIO擴展器，為微控制器提供8位通用並行輸入/輸出擴展。它可在2.3V至5.5V電源電壓下工作，支持高達400 kHz的I2C時鐘頻率。該器件具有開漏中斷輸出、三個硬件地址引腳（允許同一匯流排上最多八個器件）以及低待機電流消耗。採用16-SOIC封裝，非常適合需要額外I/O線路的空間受限設計。

詳細技術參數

核心特性

• 8位雙向I/O端口，帶內部上拉電阻
• I2C接口，時鐘速率高達400 kHz
• 三個硬件地址引腳，同一匯流排最多支持8個器件
• 開漏低電平有效中斷輸出
• 低待機電流消耗（典型值1 µA）
• 寬電源電壓範圍（2.3V至5.5V）
• 輸入/輸出配置寄存器
• 極性反轉寄存器
• ESD保護超過2000V HBM（JESD22-A114）
• 閂鎖性能超過100 mA（JESD78）

典型應用場景

• 5G基站控制與監控（例如天線傾角、電源管理）
• 汽車儀表板開關和LED控制
• 工業PLC I/O擴展
• 服務器和電信設備狀態指示
• 消費電子（例如智能家居中樞、遊戲主機）
• 醫療設備（例如病人監護面板）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 PCA9554ADW 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。
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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
Trusted Partner for Automotive, Industrial, and Hard-to-find Components.
WhatsApp: +852 5209 9691 | Email: [email protected]