WMSIC Electronic Components

WCH CH549G

ModelCH549G
PackageSOP-16
BrandWCH
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

15 specifications

Core information

Product name
WCH CH549G
Type
WCH
Minimum package
500 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WCH
Electronic Component
CH549G
Electronic Component
1
Package
SOP-16
Electronic Component
MCU(MCU / MPU / SOC)
Electronic Component
0.295g
Electronic Component
1
Features
(BOR / LVD / LVR / LVI); positions(POR); Gate positions; Built-in General Purpose; Built-in Temperature Sensor; Programmable Gate;; positions(NRST); positions; Integrated LDO
Electronic Component
BM0225955043
Electronic Component
Electronic Component
Electronic Component
500

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

CH549G 产品概述

一、产品简介

CH549G 是南京沁恒(WCH)推出的一款功能完备的单片机(MCU/MPU/SoC),采用 SOP-16 小封装,面向体积受限且对可靠性与低功耗有要求的嵌入式应用。芯片集成多种片上资源,便于实现系统级功能集成与外设控制,适合工业控制、消费电子与便携设备等场景。

二、主要功能与特性

  1. 欠压检测(BOR/LVD/LVR/LVI):提供多种欠压检测与响应机制,保证在电源异常时自动进入安全复位或告警状态。
  2. 上电复位(POR):确保上电瞬间系统在稳定电压后启动,避免不确定启动行为。
  3. 看门狗复位(可编程看门狗):内置可编程看门狗计时器,用于防止软件死锁并提升系统可靠性。
  4. 内置通用定时器:支持定时、中断等常见控制任务,满足时间基准与事件驱动需求。
  5. 内置温度传感器:便于系统自检、热管理及故障诊断。
  6. 触控功能:集成触控检测能力,适合按键、触摸面板等人机交互设计。
  7. 复位方式多样:支持外部管脚复位(NRST)和软件复位,便于调试与系统恢复。
  8. 集成 LDO:片内稳压器简化电源设计,提高系统集成度。

三、可靠性与电源管理

CH549G 在电源管理与复位方面设计全面,BOR/LVD/LVR/LVI 与 POR 组合能在上电、欠压及瞬态干扰时保障 MCU 稳定;可编程看门狗与软件复位提供软件层面的容错能力;内置 LDO 降低外部电源管理复杂度,有利于电池供电或多电平电源设计。内置温度传感器则有助于温度保护与性能退化监测。

四、封装与引脚

SOP-16 紧凑封装适合空间受限的模块化设计与通用 PCB 布局。外部复位(NRST)引脚为硬件复位提供直接控制,方便在测试、固件升级或异常恢复时使用。具体引脚分配与电气参数建议参考官方 datasheet,以完成正确的电源去耦、复位拉取与静电保护设计。

五、典型应用场景

  • 便携式与电池供电终端:依赖低功耗特性、内置 LDO 与电压检测保障可靠运行。
  • 工业控制与传感器节点:看门狗、定时器与温度传感器提升系统稳健性与自诊断能力。
  • 消费电子与人机界面:触控功能适用于按键替换、触摸交互设备。
  • 智能家电与小型控制器:SOP-16 易于批量生产与模块化集成。

六、设计与选型建议

  • 电源设计:尽量在 LDO 输入/输出处做充分滤波与去耦,确保 BOR/LVD 检测可靠触发。
  • 复位策略:结合 POR 与可编程看门狗设计故障恢复机制,同时保留 NRST 便于维护。
  • 温度与可靠性:启用内部温度传感器做热保护策略或寿命预测。
  • 开发与调试:参考厂商开发工具链与样例代码,以缩短开发周期并确保外设正确配置。

七、总结

CH549G 以其多样的复位与电源保护机制、片上温度传感器、触控功能以及可编程看门狗等特性,为对可靠性与集成度有较高要求的小型嵌入式系统提供了实用的解决方案。SOP-16 封装与集成 LDO 使其在空间受限与电源受限的应用中具备明显优势。选型时建议结合具体电源、散热与外设需求参照官方资料完成系统设计。

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