5秒后页面跳转
LM555 PDF预览

LM555

更新时间: 2024-02-10 02:46:22
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD /
页数 文件大小 规格书
14页 152K
描述
Single Timer

LM555 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

LM555 数据手册

 浏览型号LM555的Datasheet PDF文件第1页浏览型号LM555的Datasheet PDF文件第2页浏览型号LM555的Datasheet PDF文件第3页浏览型号LM555的Datasheet PDF文件第5页浏览型号LM555的Datasheet PDF文件第6页浏览型号LM555的Datasheet PDF文件第7页 
LM555/NE555/SA555  
Application Information  
Table 1 below is the basic operating table of 555 timer:  
Table 1. Basic Operating Table  
Threshold Voltage  
Trigger Voltage  
(V )(PIN 2)  
tr  
Discharging Tr.  
(PIN 7)  
Reset(PIN 4)  
Output(PIN 3)  
(V )(PIN 6)  
th  
Don't care  
Don't care  
Low  
High  
High  
High  
Low  
Low  
-
ON  
ON  
-
V
> 2Vcc / 3  
V
> 2Vcc / 3  
th  
th  
Vcc / 3 < V < 2 Vcc / 3 Vcc / 3 < V < 2 Vcc / 3  
th  
th  
V
< Vcc / 3  
V
< Vcc / 3  
th  
High  
OFF  
th  
When the low signal input is applied to the reset terminal, the timer output remains low regardless of the threshold voltage or  
the trigger voltage. Only when the high signal is applied to the reset terminal, the timer's output changes according to  
threshold voltage and trigger voltage.  
When the threshold voltage exceeds 2/3 of the supply voltage while the timer output is high, the timer's internal discharge Tr.  
turns on, lowering the threshold voltage to below 1/3 of the supply voltage. During this time, the timer output is maintained  
low. Later, if a low signal is applied to the trigger voltage so that it becomes 1/3 of the supply voltage, the timer's internal  
discharge Tr. turns off, increasing the threshold voltage and driving the timer output again at high.  
1. Monostable Operation  
+Vcc  
102  
R
A
4
8
101  
100  
RESET  
Vcc  
Trigger  
7
6
DISCH  
TRIG  
OUT  
2
3
THRES  
CONT  
10-1  
10-2  
10-3  
C1  
5
GND  
R
L
C2  
1
10-5  
10-4  
10-3  
10-2  
10-1  
100  
101  
102  
Time Delay(s)  
Figure 2. Resistance and Capacitance vs.  
Time delay(t )  
Figure 1. Monoatable Circuit  
d
Figure 3. Waveforms of Monostable Operation  
4

与LM555相关器件

型号 品牌 描述 获取价格 数据表
LM555_12 FAIRCHILD Single Timer

获取价格

LM555C HARRIS Timers for Timing Delays and Oscillator Application in Commercial, Industrial and Military

获取价格

LM555C INTERSIL Timers for Timing Delays and Oscillator Applications in Commercial, Industrial and Militar

获取价格

LM555CE ETC Analog Timer Circuit

获取价格

LM555CH NSC PULSE; RECTANGULAR, TIMER, MBCY8, METAL CAN-8

获取价格

LM555CIM ETC Analog Timer Circuit

获取价格