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HEF4047BF PDF预览

HEF4047BF

更新时间: 2024-01-15 13:53:19
品牌 Logo 应用领域
恩智浦 - NXP 振荡器
页数 文件大小 规格书
16页 279K
描述
Monostable/astable multivibrator

HEF4047BF 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:TransferredReach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.19
其他特性:RETRIGGERABLE; FREE RUNNING/GATABLE ASTABLE OPERATING MODES OSCILLATOR OUTPUT系列:4000/14000/40000
JESD-30 代码:R-PDSO-G14JESD-609代码:e4
长度:8.65 mm负载电容(CL):50 pF
逻辑集成电路类型:MONOSTABLE MULTIVIBRATOR湿度敏感等级:1
数据/时钟输入次数:2功能数量:1
端子数量:14最高工作温度:85 °C
最低工作温度:-40 °C输出极性:COMPLEMENTARY
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):260传播延迟(tpd):320 ns
认证状态:Not Qualified座面最大高度:1.75 mm
最大供电电压 (Vsup):15 V最小供电电压 (Vsup):3 V
标称供电电压 (Vsup):5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:NICKEL PALLADIUM GOLD端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3.9 mm
Base Number Matches:1

HEF4047BF 数据手册

 浏览型号HEF4047BF的Datasheet PDF文件第9页浏览型号HEF4047BF的Datasheet PDF文件第10页浏览型号HEF4047BF的Datasheet PDF文件第11页浏览型号HEF4047BF的Datasheet PDF文件第13页浏览型号HEF4047BF的Datasheet PDF文件第14页浏览型号HEF4047BF的Datasheet PDF文件第15页 
Philips Semiconductors  
Product specification  
HEF4047B  
MSI  
Monostable/astable multivibrator  
3. Retrigger mode operation  
The HEF4047B can be used in the retrigger mode to extend the output pulse duration, or to compare the frequency of  
an input signal with that of the internal oscillator. In the retrigger mode the input pulse is applied to pins 8 and 12, and  
the output is taken from pin 10 or 11. Normal monostable action is obtained when one retrigger pulse is applied (Fig.8).  
Extended pulse duration is obtained when more than one pulse is applied. For two input pulses, tRE = t1’ + t1 + 2t2.  
For more than two pulses, tRE (output O), terminates at some variable time, tD, after the termination of the last retrigger  
pulse; tD is variable because tRE (output O) terminates after the second positive edge of the oscillator output appears at  
flip-flop 4.  
Fig.8 Retrigger mode waveforms.  
4. External counter option  
Time tM can be extended by any amount with the use of external counting circuitry. Advantages include digitally  
controlled pulse duration, small timing capacitors for long time periods, and extremely fast recovery time. A typical  
implementation is shown in Fig.9.  
The pulse duration at the output is: text = (N 1) (tA) + (tM + 1 2 tA)  
Where text = pulse duration of the circuitry, and N is the number of counts used.  
Fig.9 Implementation of external counter option.  
January 1995  
12  

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