PCA9534RGVR TI I2C GPIO Expander | 16-VQFN (4x4) | 8-bit, 400kHz

Product Overview

The PCA9534RGVR 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, and output register. The PCA9534RGVR is available in a compact 16-VQFN (4x4) package, making it ideal for space-constrained applications.

Detailed Technical Specifications

Key Features

• 8-bit I2C-bus I/O expander with interrupt output
• Operating power supply voltage range of 2.3 V to 5.5 V
• Low standby current consumption (1 µA typical)
• I2C bus interface supports standard (100 kHz) and fast (400 kHz) modes
• 5 V tolerant I/Os
• Active LOW interrupt output (INT) for system monitoring
• Polarity inversion register for input data
• Internal power-on reset
• No glitch on power-up
• SCL/SDA input filters provide noise immunity
• 16-pin VQFN package (4x4 mm) with 0.5 mm pitch

Target Applications

The PCA9534RGVR is suitable for a wide range of applications including:

• 5G base stations: monitoring and controlling status LEDs, fans, and sensors
• Automotive dashboard: controlling backlight LEDs, reading switch inputs
• Industrial automation: expanding I/O for PLCs and remote terminal units
• Consumer electronics: managing GPIO in smart home devices, gaming consoles
• Medical devices: controlling user interface buttons and indicators
• Networking equipment: managing port status LEDs and reset signals

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for PCA9534RGVR. 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

PCA9534RGVR 是德州儀器（TI）推出的一款 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。該器件包含一個 8 位配置暫存器、輸入暫存器和輸出暫存器。PCA9534RGVR 採用緊湊的 16-VQFN（4x4）封裝，非常適合空間受限的應用。

詳細技術參數

核心特性

• 8 位 I2C 匯流排 I/O 擴展器，帶中斷輸出
• 工作電源電壓範圍 2.3 V 至 5.5 V
• 低待機電流消耗（典型值 1 µA）
• I2C 匯流排介面支援標準（100 kHz）和快速（400 kHz）模式
• 5 V 耐壓 I/O
• 低電平有效中斷輸出（INT），用於系統監控
• 極性反轉暫存器，用於輸入資料
• 內部上電復位
• 上電無毛刺
• SCL/SDA 輸入濾波器提供抗干擾能力
• 16 引腳 VQFN 封裝（4x4 mm），間距 0.5 mm

典型應用場景

PCA9534RGVR 適用於多種應用，包括：

• 5G 基站：監控和控制狀態 LED、風扇和感測器
• 汽車儀錶盤：控制背光 LED、讀取開關輸入
• 工業自動化：為 PLC 和遠端終端單元擴展 I/O
• 消費電子：管理智慧家居設備、遊戲機中的 GPIO
• 醫療設備：控制使用者介面按鈕和指示燈
• 網路設備：管理埠狀態 LED 和復位信號

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在 Jasin Chip，我們為 PCA9534RGVR 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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