STM32L431KBU3 ST Microcontroller | 32-UFQFPN（5X5） | ARM Cortex-M4, 80MHz

Product Overview

The STM32L431KBU3 is an ultra-low-power 32-bit microcontroller based on the ARM Cortex-M4 core with FPU. It operates at up to 80 MHz and features 128 KB Flash memory and 64 KB SRAM. The device is part of the STM32L4 series, offering a rich set of peripherals and advanced low-power modes, making it ideal for battery-powered applications. It comes in a compact 32-UFQFPN (5x5 mm) package, suitable for space-constrained designs.

Detailed Technical Specifications

Key Features

• Ultra-low-power with multiple dynamic voltage scaling and flexible power modes
• ARM Cortex-M4 core with FPU for efficient signal processing
• Rich analog peripherals: 12-bit ADC, 12-bit DAC, comparators, op-amps
• Advanced security: AES-128/256 hardware encryption, RNG, CRC
• Up to 26 GPIOs with interrupt capability
• DMA controller for high-speed data transfer
• Real-time clock (RTC) with calendar and alarm
• Integrated USB 2.0 FS device
• Compact 5x5 mm package for space-constrained designs

Target Applications

• Industrial sensors and actuators (e.g., pressure transmitters, flow meters)
• Medical devices (e.g., portable glucose meters, pulse oximeters)
• Smart home devices (e.g., smart locks, thermostats)
• Wearable electronics (e.g., fitness trackers, smartwatches)
• IoT edge nodes (e.g., environmental monitoring, asset tracking)
• Consumer electronics (e.g., remote controls, toys)
• Automotive aftermarket (e.g., OBD-II dongles, tire pressure monitors)

Global Supply Chain & Wholesale Solutions

At Jasin Chip, we provide professional supply chain and wholesale solutions for STM32L431KBU3. 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

STM32L431KBU3 是一款基於 ARM Cortex-M4 內核（含 FPU）的超低功耗 32 位微控制器，最高工作頻率 80 MHz，配備 128 KB Flash 和 64 KB SRAM。該器件屬於 STM32L4 系列，提供豐富的外設和先進的低功耗模式，非常適合電池供電的應用。它採用緊湊的 32-UFQFPN（5x5 mm）封裝，適用於空間受限的設計。

詳細技術參數

核心特性

• 超低功耗，支持多種動態電壓調節和靈活的電源模式
• ARM Cortex-M4 內核含 FPU，高效信號處理
• 豐富的模擬外設：12 位 ADC、12 位 DAC、比較器、運算放大器
• 先進安全特性：AES-128/256 硬件加密、RNG、CRC
• 最多 26 個 GPIO，支持中斷
• DMA 控制器，實現高速數據傳輸
• 實時時鐘（RTC）帶日曆和鬧鐘
• 集成 USB 2.0 FS 設備
• 緊湊 5x5 mm 封裝，適合空間受限設計

典型應用場景

• 工業傳感器和執行器（例如壓力變送器、流量計）
• 醫療設備（例如便攜式血糖儀、脈搏血氧儀）
• 智能家居設備（例如智能鎖、恆溫器）
• 可穿戴電子產品（例如健身追踪器、智能手錶）
• 物聯網邊緣節點（例如環境監測、資產追踪）
• 消費電子產品（例如遙控器、玩具）
• 汽車後市場（例如 OBD-II 適配器、胎壓監測）

環球供應鏈與批發合作夥伴方案

在 Jasin Chip，我們為 STM32L431KBU3 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。
• 深港聯動，結算靈活：深圳直發全球，物流高效可靠；支援香港銀行戶口轉賬及多幣種結算。
• 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]