WMSIC Electronic Components

HGSEMI NE555M/TR NE555M

ModelNE555M/TR
PackageSOP-8
BrandHGSEMI
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI NE555M / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
NE555M/TR
Electronic Component
1
Package
SOP-8
Electronic Component
555 Timer
Electronic Component
0.225g
Electronic Component
1
Features
positions
Electronic Component
BM0227597204
Electronic Component
1
Operating Temperature
0℃~+70℃
Operating Voltage
4.5V~16V
Output Current
200mA
Electronic Component
Electronic Component
Electronic Component
2500

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

NE555M/TR(HGSEMI 华冠)产品概述

一、产品简介

NE555M/TR 是华冠(HGSEMI)生产的经典定时器/振荡器集成电路,SOP-8 封装,针对通用定时、单稳/多谐振荡和脉冲发生等应用设计。该器件基于标准 555 架构,内部包含两个比较器、一个 RS 触发器和一个放电晶体管,可用于产生稳定方波、单次延时及占空比可调的脉冲链。标称工作频率可达 500kHz(在合适外部元件与布局条件下),适用于中高频率时基电路。

二、主要电气特性(典型值)

  • 封装:SOP-8(标准 8 引脚)
  • 电源电压:约 4.5V ~ 16V(典型 5V 或 12V 应用)
  • 工作频率:最高可达 500kHz(依外部 R、C 及负载情况)
  • 输出驱动能力:具备较强的源/吸电流能力,适合驱动中小功率负载
  • 工作温度:商业级常见 0℃ ~ 70℃(请参考具体器件规格书)
  • 引脚功能:1-GND、2-TRIG、3-OUT、4-RESET、5-CONT、6-THRESH、7-DISCH、8-VCC

三、功能与应用场景

NE555M/TR 常用作:单稳态脉冲延时、占空比可调的方波振荡器、PWM 信号源、频率合成、脉冲整形、LED 驱动闪烁、音频音调产生、定时控制、电机驱动的占空比控制及看门狗/复位电路等。其设计灵活,外围只需少量电阻、电容即可实现多种工作模式。

四、设计与使用建议

  • 若需接近 500kHz 操作,应使用小容值(pF~nF 级)与合适的阻值,并优化 PCB 布局与电源去耦,减少走线寄生电容与干扰;高频下器件参数与波形会受限,建议测试验证。
  • 控制脚(CONT)可用于调节阈值,外接电容或稳压器实现频率/占空比的动态控制。
  • 输出负载不宜过大,必要时加入缓冲器或功率级以保护芯片并改善波形。
  • 推荐在 VCC 与 GND 之间并联 0.01µF~0.1µF 陶瓷电容以抑制高频噪声。

五、选型与替代

NE555M/TR 与常规 NE555 系列兼容,可作为通用替代器件使用。若需更低功耗或更高频率性能,可考虑 CMOS 型 7555 或专用高速单片振荡器。选型时请参考华冠详细规格书以确认温度范围、电气极限与引脚排列。

总结:NE555M/TR 以其结构简单、外围元件少、应用广泛的特点,是电子定时与振荡电路中常用且可靠的解决方案。正确的外围设计与良好的电源/布线处理可在较宽频率范围内实现稳定工作。

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