TCAL9538RSVR TI I2C I/O Expander | 16-UQFN (2.6x1.8) | 8-bit, 1.65-5.5V

Product Overview

The TCAL9538RSVR from Texas Instruments is a low-voltage 8-bit I2C 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 wide operating voltage range of 1.65V to 5.5V, making it suitable for both legacy and modern low-power applications. Housed in a compact 16-UQFN (2.6x1.8mm) package, it is ideal for space-constrained designs.

Detailed Technical Specifications

Key Features

• 8-bit bidirectional I/O ports
• I2C interface with up to 400 kHz clock frequency
• Low standby current consumption (1 µA typical)
• Open-drain interrupt output
• Power-on reset with all registers initialized to defaults
• 5V tolerant I/O pins
• No glitch on power-up
• Supports hot insertion

Target Applications

• 5G base station: Monitoring and control of power amplifiers, fan speed, and status LEDs
• Automotive dashboard: Reading button presses, controlling backlight LEDs, and sensor inputs
• Industrial PLC: Expanding digital I/O for sensor and actuator interfaces
• Portable electronics: GPIO expansion for keypads, sliders, and notification LEDs
• Server and networking equipment: System health monitoring and reset control

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for TCAL9538RSVR. 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

TCAL9538RSVR 是德州儀器（TI）推出的一款低電壓 8 位 I2C 和 SMBus I/O 擴展器，具有中斷輸出和配置寄存器。它通過 I2C 接口為大多數微控制器系列提供通用遠程 I/O 擴展。該器件的工作電壓範圍寬（1.65V 至 5.5V），適用於傳統和現代低功耗應用。採用緊湊的 16-UQFN（2.6x1.8mm）封裝，非常適合空間受限的設計。

詳細技術參數

核心特性

• 8 位雙向 I/O 端口
• I2C 接口，時鐘頻率最高 400 kHz
• 低待機電流（典型值 1 µA）
• 開漏中斷輸出
• 上電復位，所有寄存器初始化為默認值
• 5V 耐受 I/O 引腳
• 上電無毛刺
• 支持熱插入

典型應用場景

• 5G 基站：監控和控制功率放大器、風扇轉速及狀態 LED
• 汽車儀表盤：讀取按鍵輸入、控制背光 LED 及傳感器輸入
• 工業 PLC：擴展數字 I/O 用於傳感器和執行器接口
• 便攜式電子設備：用於鍵盤、滑塊和通知 LED 的 GPIO 擴展
• 服務器和網絡設備：系統健康監控和復位控制

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 TCAL9538RSVR 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。
• 現貨庫存，即日發貨：確保現貨充足。下午 4 點前確認訂單，即可安排當天寄出。
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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.
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