WMSIC Electronic Components

LPC845M301JBD48E

ModelLPC845M301JBD48E
PackageLQFP-48(7x7)
BrandNXP
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
NXP LPC845M301JBD48E
Type
NXP
Minimum package
250 托盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
NXP
Electronic Component
LPC845M301JBD48E
Electronic Component
1
Package
LQFP-48(7x7)
Electronic Component
MCU(MCU / MPU / SOC)
Electronic Component
0.18g
CPU
32 Bit
CPU
ARM Cortex-M0+
I / O
42
RAM
16KB
Electronic Component
1
ADC
12bit
DAC
10bit
Features
Gate (WWDG); (BOR / LVD / LVR / LVI); positions(POR); Built-in General Purpose; CRC;; positions(NRST)
Electronic Component
BM0248788247

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

LPC845M301JBD48E 产品概述

一 产品简介

LPC845M301JBD48E 是恩智浦(NXP)面向低功耗嵌入式控制与感测应用的微控制器单元,基于 ARM Cortex‑M0+ 内核,最高主频 30 MHz。器件集成了 64 KB 的闪存程序存储、16 KB 的片上 SRAM,以及丰富的模拟与数字外设(包括 12‑bit ADC 和 10‑bit DAC),工作电压范围为 1.8 V 至 3.6 V,工作温度覆盖工业级 -40℃ 至 +105℃,封装为 LQFP‑48(7×7 mm)。该器件在体积、功耗与功能之间取得平衡,适合对成本、可靠性与现场稳定性有要求的控制类和边缘计算类应用。

二 主要特性(核心参数)

  • CPU:ARM Cortex‑M0+,32 位,最高 30 MHz,面向嵌入式实时控制与低功耗任务。
  • 程序存储:64 KB FLASH,支持在片编程与擦写,满足中等规模固件需求。
  • RAM:16 KB SRAM,适合常见控制算法、缓冲与中等堆栈需求。
  • I/O:42 个通用 I/O(GPIO),多路复用可用于外设、通信与控制信号。
  • 模拟外设:12‑bit ADC(多通道采样)与 10‑bit DAC,适合高精度传感数据采集与模拟输出需求。
  • 振荡器:内置低功耗时钟源并支持外置晶振,便于在需高精度时钟或低功耗待机间灵活选择。
  • 电源与温度:工作电压 1.8 V~3.6 V,工业级工作温度 -40℃~+105℃,适用于严苛环境与车规级附近应用场景。
  • 封装:LQFP‑48(7×7 mm),便于手工焊接与自动化生产。

三 电气与性能要点

器件的宽工作电压范围使其能够适配常见的 1.8 V 与 3.3 V 系统电源,且可通过外围电源管理实现低功耗运行。30 MHz 主频对多数传感处理、PID 控制、通信协议解析以及简单的信号处理任务已足够。同时,12‑bit ADC 提供高分辨率的模拟输入能力,适合对传感器输出进行高精度采样;10‑bit DAC 可用于产生参考电压、音频信号或模拟控制量输出。建议在设计时注意模拟地(AGND)与数字地(DGND)的布局隔离,并在电源近端放置去耦电容以降低噪声对 ADC 性能的影响。

四 外观、封装与 PCB 注意事项

LQFP‑48(7×7 mm)封装适合中小批量与量产的线路板设计。焊盘尺寸与排列需遵循恩智浦官方封装规范,保持焊盘间距与热沉管理良好。对高精度 ADC 应用,建议在 PCB 布局时将模拟输入通路尽量缩短、避开高频开关电源与高速信号,并为参考电压与模拟地预留稳定的区域。此外,如使用外置晶振或高精度时钟源,应在晶振旁留出足够的焊盘和匹配电容位置。

五 典型应用场景

  • 工业控制与自动化:PLC 辅助控制、传感器数据采集、现场 I/O 模块。
  • 物联网终端与网关:低功耗节点、传感器聚合器、边缘数据预处理。
  • 消费电子与家用设备:按键控制、显示驱动、音频提示(低采样率)。
  • 医疗与便携仪器:便携式测量仪表、传感器接口与数据记录(在满足医疗认证的前提下)。
  • 小型电机与步进控制:开环/闭环控制、PWM 驱动与状态监测。

六 开发与量产建议

  • 开发工具链:建议使用 NXP 官方提供的开发环境与 SDK(如 MCUXpresso SDK/IDE)进行快速建构与调试,配合标准 SWD 调试接口可实现断点与在线烧写。
  • 功耗优化:在需要低功耗运行时,充分利用低功耗模式、外设时钟门控与中断唤醒策略,避免不必要的外设时钟开启。
  • 固件设计:对闪存空间与 RAM 使用进行规划,采用分区设计以便升级与异常恢复。
  • 可靠性:工业级温度范围使其适合恶劣环境,但在高温或振动场合仍建议做热管理与机械固定;批量生产时应进行元件级的温升与应力测试。
  • EMC 与抗扰:在有强电磁干扰的系统中,做好滤波与慢上电措施,必要时增加共模电感与滤波网络以提高系统稳定性。

总结:LPC845M301JBD48E 凭借 Cortex‑M0+ 的能效比、充分的片上资源与工业级工作条件,适合需要成本控制且强调稳定性的嵌入式控制与传感应用。合理的硬件布局与良好的固件架构可以充分发挥其在精度、功耗与可靠性之间的平衡优势。

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