5秒后页面跳转
LM555CN PDF预览

LM555CN

更新时间: 2024-01-22 13:34:20
品牌 Logo 应用领域
美国国家半导体 - NSC 模拟波形发生功能信号电路光电二极管
页数 文件大小 规格书
12页 392K
描述
Timer

LM555CN 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.13
Is Samacsys:N模拟集成电路 - 其他类型:PULSE; RECTANGULAR
JESD-30 代码:R-PDIP-T8JESD-609代码:e0
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-55 °C
封装主体材料:PLASTIC/EPOXY封装代码:DIP
封装等效代码:DIP8,.3封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:5/15 V认证状态:Not Qualified
子类别:Analog Waveform Generation Functions最大供电电流 (Isup):12 mA
最大供电电压 (Vsup):18 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):15 V表面贴装:NO
技术:BIPOLAR温度等级:MILITARY
端子面层:Tin/Lead (Sn/Pb)端子形式:THROUGH-HOLE
端子节距:2.54 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIEDBase Number Matches:1

LM555CN 数据手册

 浏览型号LM555CN的Datasheet PDF文件第6页浏览型号LM555CN的Datasheet PDF文件第7页浏览型号LM555CN的Datasheet PDF文件第8页浏览型号LM555CN的Datasheet PDF文件第9页浏览型号LM555CN的Datasheet PDF文件第11页浏览型号LM555CN的Datasheet PDF文件第12页 
Applications Information (Continued)  
50% DUTY CYCLE OSCILLATOR  
For a 50% duty cycle, the resistors RA and RB may be con-  
nected as in Figure 14. The time period for the output high is  
the same as previous, t1 = 0.693 RA C. For the output low it  
is t2  
=
Thus the frequency of oscillation is  
DS007851-18  
FIGURE 14. 50% Duty Cycle Oscillator  
Note that this circuit will not oscillate if RB is greater than 1/2  
RA because the junction of RA and RB cannot bring pin 2  
down to 1/3 VCC and trigger the lower comparator.  
ADDITIONAL INFORMATION  
Adequate power supply bypassing is necessary to protect  
associated circuitry. Minimum recommended is 0.1µF in par-  
allel with 1µF electrolytic.  
Lower comparator storage time can be as long as 10µs  
when pin 2 is driven fully to ground for triggering. This limits  
the monostable pulse width to 10µs minimum.  
Delay time reset to output is 0.47µs typical. Minimum reset  
pulse width must be 0.3µs, typical.  
Pin 7 current switches within 30ns of the output (pin 3) volt-  
age.  
www.national.com  
10  

与LM555CN相关器件

型号 品牌 描述 获取价格 数据表
LM555CN/A+ ETC Analog Timer Circuit

获取价格

LM555CN/B+ ETC Analog Timer Circuit

获取价格

LM555CN/NOPB TI Timing from Microseconds through Hours

获取价格

LM555CN_12 FAIRCHILD Single Timer

获取价格

LM555CN_NL FAIRCHILD 暂无描述

获取价格

LM555CS ETC Analog Timer Circuit

获取价格