TCAL9539RPWR TI I2C I/O Expander | 24-TSSOP | 16-bit, 1.65-5.5V

Product Overview

The TCAL9539RPWR from Texas Instruments is a 16-bit I2C-bus and SMBus I/O expander with interrupt output and configuration registers. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface. The device features a 16-bit bidirectional I/O port (including I/O pins P07-P00 and P17-P10) that can be individually configured as input or output. The TCAL9539RPWR operates from a supply voltage range of 1.65 V to 5.5 V, making it suitable for low-voltage applications. It supports standard (100 kHz), fast (400 kHz), and fast-mode plus (1 MHz) I2C bus frequencies. The device includes an interrupt output (INT) that can be connected to the microcontroller's interrupt input, providing a signal when an input state changes. The TCAL9539RPWR is available in a 24-pin TSSOP package.

Detailed Technical Specifications

Key Features

• 16-bit bidirectional I/O port with individual bit configuration
• Wide supply voltage range: 1.65 V to 5.5 V
• I2C-bus interface supports Standard, Fast, and Fast-mode Plus (1 MHz)
• Interrupt output for input change detection
• Active LOW reset input
• Low standby current consumption
• 5 V tolerant I/O pins
• Polarity inversion register for input inversion
• No glitch on power-up
• Supports hot insertion

Target Applications

• 5G base stations: for monitoring and controlling status LEDs, fans, and power supply sequencing
• Automotive dashboard: for reading button inputs and controlling indicator lights
• Industrial PLCs: for expanding digital I/O for sensor and actuator interfaces
• Server motherboards: for managing system status signals and reset controls
• Smart home gateways: for interfacing with multiple sensors and relays

Global Supply Chain & Wholesale Solutions

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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

TCAL9539RPWR 是德州儀器 (TI) 的一款 16 位 I2C 匯流排和 SMBus I/O 擴展器，具有中斷輸出和配置寄存器。它通過 I2C 介面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 16 位雙向 I/O 埠（包括 I/O 引腳 P07-P00 和 P17-P10），可單獨配置為輸入或輸出。TCAL9539RPWR 的工作電源電壓範圍為 1.65 V 至 5.5 V，適用於低電壓應用。它支援標準 (100 kHz)、快速 (400 kHz) 和快速模式+ (1 MHz) I2C 匯流排頻率。該器件包括一個中斷輸出 (INT)，可連接到微控制器的中斷輸入，在輸入狀態發生變化時提供信號。TCAL9539RPWR 採用 24 引腳 TSSOP 封裝。

詳細技術參數

核心特性

• 16 位雙向 I/O 埠，支援逐位配置
• 寬電源電壓範圍：1.65 V 至 5.5 V
• I2C 匯流排介面支援標準、快速和快速模式+ (1 MHz)
• 中斷輸出，用於檢測輸入變化
• 低電平有效復位輸入
• 低待機電流消耗
• I/O 引腳可承受 5 V 電壓
• 極性反轉寄存器，用於輸入反轉
• 上電無毛刺
• 支援熱插入

典型應用場景

• 5G 基站：用於監控和控制狀態 LED、風扇以及電源排序
• 汽車儀表板：用於讀取按鈕輸入和控制指示燈
• 工業 PLC：用於擴展感測器和執行器介面的數位 I/O
• 伺服器主機板：用於管理系統狀態信號和復位控制
• 智慧家庭閘道：用於與多個感測器和繼電器進行介面

環球供應鏈與批發合作夥伴方案

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