PCA9536D TI I2C GPIO Expander | 8-SOIC | 5.5V, 400kHz

Product Overview

The PCA9536D from Texas Instruments is a 4-bit I2C-bus and SMBus I/O expander designed for low-voltage applications. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface (serial clock (SCL) and serial data (SDA)). The device features a 4-bit configuration register for input/output selection, and a 4-bit output register for data output. The PCA9536D operates from a 2.3V to 5.5V supply and supports up to 400kHz I2C clock frequency. It is available in the compact 8-SOIC package, making it ideal for space-constrained designs.

Detailed Technical Specifications

Key Features

• 4-bit I2C-bus I/O expander with open-drain interrupt output
• Operating supply voltage range: 2.3V to 5.5V
• I2C bus interface supports standard (100kHz) and fast (400kHz) modes
• Low standby current consumption (1.5 µA typical)
• 5V tolerant I/O pins
• Polarity inversion register for input data
• Internal power-on reset
• No glitch on power-up
• SCL/SDA input filters provide noise immunity
• Small 8-SOIC package saves board space

Target Applications

The PCA9536D is suitable for a wide range of applications including:

• 5G base stations: for monitoring and controlling status LEDs, fans, and reset signals
• Automotive dashboard: for reading switch inputs and controlling indicator lights
• Industrial PLCs: for expanding digital I/O in remote modules
• Consumer electronics: for GPIO expansion in smart home devices, set-top boxes, and gaming consoles
• Server and networking equipment: for managing power sequencing and fault detection

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCA9536D. 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.

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• 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

PCA9536D 是德州儀器 (TI) 推出的一款 4 位 I2C 匯流排和 SMBus I/O 擴展器，專為低電壓應用設計。它通過 I2C 介面（串列時鐘 SCL 和串列資料 SDA）為大多數微控制器系列提供通用遠端 I/O 擴展。該器件具有一個 4 位配置寄存器用於輸入/輸出選擇，以及一個 4 位輸出寄存器用於資料輸出。PCA9536D 的工作電壓範圍為 2.3V 至 5.5V，支援高達 400kHz 的 I2C 時鐘頻率。它採用緊湊的 8-SOIC 封裝，非常適合空間受限的設計。

詳細技術參數

核心特性

• 4 位 I2C 匯流排 I/O 擴展器，帶開漏中斷輸出
• 工作電源電壓範圍：2.3V 至 5.5V
• I2C 匯流排介面支援標準模式 (100kHz) 和快速模式 (400kHz)
• 低待機電流消耗（典型值 1.5 µA）
• 5V 容限 I/O 引腳
• 極性反轉寄存器用於輸入資料
• 內部上電復位
• 上電無突波
• SCL/SDA 輸入濾波器提供抗干擾能力
• 小型 8-SOIC 封裝節省電路板空間

典型應用場景

PCA9536D 適用於多種應用，包括：

• 5G 基地台：用於監控和控制狀態 LED、風扇和復位信號
• 汽車儀表板：用於讀取開關輸入和控制指示燈
• 工業 PLC：用於遠端模組的數位 I/O 擴展
• 消費電子：用於智慧家居設備、機上盒和遊戲機的 GPIO 擴展
• 伺服器和網路設備：用於管理電源排序和故障檢測

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 PCA9536D 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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