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ICM7242CBAZ PDF预览

ICM7242CBAZ

更新时间： 2024-01-16 23:06:26
品牌 Logo 应用领域
英特矽尔 - INTERSIL 光电二极管
页数 文件大小 规格书
10页 265K
描述
Long Range Fixed Timer

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ICM7242CBAZ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：DIP
包装说明：DIP,针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.59
模拟集成电路 - 其他类型：PULSE; RECTANGULARJESD-30 代码：R-GDIP-T8
JESD-609代码：e3功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-20 °C封装主体材料：CERAMIC, GLASS-SEALED
封装代码：DIP封装形状：RECTANGULAR
封装形式：IN-LINE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：5.08 mm
最大供电电压 (Vsup)：16 V最小供电电压 (Vsup)：2 V
标称供电电压 (Vsup)：5 V表面贴装：NO
温度等级：OTHER端子面层：MATTE TIN
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 SPECIFIED
宽度：7.62 mmBase Number Matches：1

ICM7242CBAZ 数据手册

 浏览型号ICM7242CBAZ的Datasheet PDF文件第2页浏览型号ICM7242CBAZ的Datasheet PDF文件第3页浏览型号ICM7242CBAZ的Datasheet PDF文件第4页浏览型号ICM7242CBAZ的Datasheet PDF文件第6页浏览型号ICM7242CBAZ的Datasheet PDF文件第7页浏览型号ICM7242CBAZ的Datasheet PDF文件第8页 
ICM7242  
To use the 8-bit counter without the timebase, Terminal 7  
(RC) should be connected to ground and the outputs taken  
from Terminals 2 and 3.  
TABLE 1. COMPARING THE ICM7242 WITH THE 2242  
CHARACTERISTICS  
Operating Voltage  
Operating Temperature Range  
ICM7242  
2V to 16V  
2242  
4V to 15V  
0°C to 70°C  
7mA (Max)  
The ICM7242 may be used for a very low frequency square  
wave reference. For this application the timing components  
are more convenient than those that would be required by a  
555 timer. For very low frequencies, devices may be  
cascaded (see Figure 3).  
-25°C to 85°C  
0.7mA (Max)  
Supply Current, V  
Pullup Resistors  
TB Output  
= 5V  
DD  
No  
No  
Yes  
Yes  
V
DD  
÷2 Output  
R
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
C
÷256 Output  
Toggle Rate  
No  
Yes  
ICM7242  
ICM7242  
3.0MHz  
No  
0.5MHz  
Yes  
Resistor to Inhibit Oscillator  
Resistor in Series with Reset for  
Monostable Operation  
No  
Yes  
16  
f = RC/2  
Capacitor TB Terminal for HF  
Operation  
No  
Sometimes  
FIGURE 3. LOW FREQUENCY REFERENCE (OSCILLATOR)  
8
By selection of R and C, a wide variety of sequence timing  
can be realized. A typical flow chart for a machine tool  
controller could be as shown in Figure 5.  
For monostable operation the ÷2 output is connected to the  
RESET terminal. A positive edge on TRIGGER initiates the  
cycle (NOTE: TRIGGER overrides RESET).  
V
DD  
ICM7242  
ICM7242  
TRIGGERING CAN BE  
OBTAINED FROM A  
PREVIOUS STAGE,  
A LIMIT SWITCH,  
WAIT  
5s  
ENABLE  
10s  
R
START  
1
2
3
4
8
7
6
5
C
-
OPERATOR SWITCH, ETC.  
ICM7242  
TRIGGER  
RESET  
OUTPUT  
ENABLE  
5s  
COUNT  
TO 185  
WAIT  
5s  
S
1
STOP  
ICM7242  
ICM7240  
ICM7242  
STOP  
100kΩ  
START  
WAIT ENABLE WAIT  
5s 10s 5s  
COUNT ENABLE  
TRIGGER  
TERMINAL 6  
TO 185  
5s  
FIGURE 5. FLOW CHART FOR MACHINE TOOL CONTROLLER  
TB OUTPUT  
OUTPUT  
TERMINAL 8  
TERMINAL 3  
By cascading devices, use of low cost CMOS AND/OR gates  
and appropriate RC delays between stages, numerous  
sequential control variations can be obtained. Typical  
applications include injection molding machine controllers,  
phonograph record production machines, automatic  
sequencers (no metal contacts or moving parts), milling  
machine controllers, process timers, automatic lubrication  
systems, etc.  
FIGURE 4. MONOSTABLE OPERATION  
The ICM7242 is superior in all respects to the 2242 except  
for initial accuracy and oscillator stability. This is primarily  
due to the fact that high value p-resistors have been used on  
the ICM7242 to provide the comparator timing points.  
Sequence Timing  
• Process Control  
• Machine Automation  
• Electro-Pneumatic Drivers  
• Multi Operation (Serial or Parallel Controlling)  
FN2866.4  
February 9, 2007  
5
12345678...10

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