WMSIC Electronic Components

HGSEMI NE555MM/TR NE555MM

ModelNE555MM/TR
PackageMSOP-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 26+

Available for RFQ

Technical data

Product details

18 specifications

Core information

Product name
HGSEMI NE555MM / TR
Type
MSOP-8
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
NE555MM/TR
Electronic Component
1
Package
MSOP-8
Electronic Component
555 Timer
Electronic Component
0.15g
Electronic Component
1
Features
positions
Electronic Component
BM0264336489
Electronic Component
1
Operating Temperature
0℃~+70℃
Operating Voltage
4.5V~16V
Electronic Component
Electronic Component
Electronic Component
3000

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

NE555MM/TR 产品概述 — HGSEMI(华冠)

一、概述

NE555MM/TR 是华冠(HGSEMI)推出的一款单定时器模拟集成电路,采用 MSOP-8 迷你封装,提供精确的时间延迟和振荡功能。器件将模拟信号与基本逻辑功能结合,能方便地构成单稳/多稳态定时、脉冲发生、占空比调制及锯齿波产生等多种电路。典型应用包括电子控制、电子检测、报警系统以及微型计算机外围的时钟源等。

二、主要功能与特性

  • 单定时器(1个定时单元)
  • 工作电压:4.5V ~ 16V,适用于常见单电源系统
  • 工作温度:0℃ ~ +70℃
  • 复位功能(RESET):外部低电平可强制复位输出
  • 关断/控制(控制端/断电):支持外部控制以实现输出关断或占空比调整
  • 封装:MSOP-8,便于高密度 PCB 布局,TR 表示卷带(Tape & Reel)供货

三、引脚功能(标准 8 引脚 555)

  1. 地(GND)
  2. 触发(TRIG)— 负跳变触发单稳态
  3. 输出(OUT)
  4. 复位(RESET)— 低电平有效
  5. 控制(CTRL/CONT)— 参考电压/调幅
  6. 阈值(THR/THRESH)— 比较器阈值输入
  7. 放电(DISCH)— 外接电阻放电路径
  8. 电源正(VCC)

四、典型电路与时间公式

  • 单稳态(单脉冲)模式:输出脉宽 t ≈ 1.1 × R × C(触发后)
  • 多谐振荡(占空比可调)模式:振荡频率 f ≈ 1.44 / ((RA + 2·RB)·C) 这些公式便于快速估算器件在常见配置下的定时性能。

五、典型应用场景

  • 精确计时与延时(电源延迟、复位延时)
  • 脉冲/触发发生器、频率产生与分频
  • 脉宽调制(PWM)用于亮度或速度控制
  • 声光报警、检测电路与简易信号处理
  • 微控制器外部时钟或看门狗辅助电路

六、包装与订购信息

型号:NE555MM/TR(HGSEMI 华冠)
封装:MSOP-8,卷带供货(TR)适合自动贴片生产线。出货前建议与供应商确认最小起订量与包装规格。

七、使用与注意事项

  • 遵循电源上电顺序与去耦建议:在 VCC 与 GND 之间放置合适的旁路电容,减少噪声影响。
  • 控制脚(CTRL)若不用应接低噪电容或直接接参考电压,以避免漂移。
  • 工作温度范围内使用,超温会影响定时精度与可靠性。
  • 处理时注意静电防护与焊接温度限制,避免器件损坏。

如需详细电气参数(输入漏电、输出驱动能力、耗电等)或参考电路图,可提供具体应用需求以便进一步给出针对性数据与设计建议。

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