| No | Part number | Description ( Function ) | Manufacturers | |
| 4 | CD4538B | CMOS Dual Precision Monostable Multivibrator |
 RCA |
|
| 3 | CD4538BC | Dual Precision Monostable CD4538BC Dual Precision Monostable October 1987 Revised January 1999 CD4538BC Dual Precision Monostable General Description The CD4538BC is a dual, precision monostable multivibrator with independent trigger and reset controls. The device is retriggerable and resettable, and the control inputs are internally latched. Two trigger inputs are provided to allow either rising or f |
 Fairchild Semiconductor |
|
| 2 | CD4538BC | Dual Precision Monostable CD4538BM CD4538BC Dual Precision Monostable February 1988 CD4538BM CD4538BC Dual Precision Monostable General Description The CD4538B is a dual precision monostable multivibrator with independent trigger and reset controls The device is retriggerable and resettable and the control inputs are internally latched Two trigger inputs are provided to allow either rising or falling |
 National Semiconductor |
|
| 1 | CD4538BM | Dual Precision Monostable CD4538BM CD4538BC Dual Precision Monostable February 1988 CD4538BM CD4538BC Dual Precision Monostable General Description The CD4538B is a dual precision monostable multivibrator with independent trigger and reset controls The device is retriggerable and resettable and the control inputs are internally latched Two trigger inputs are provided to allow either rising or falling |
National Semiconductor |
|
List of most widely used semiconductors
| Part Number | Function | Manufacturers | |
| 1N4007 | The 1N4007 is a rectification diode that is designed for high-voltage applications, typically up to 1000V. It has a maximum current rating of 1A and a forward voltage drop of around 0.7V. |
 Vishay |
|
| LM317 | This is a popular adjustable voltage regulator. |
 ON Semiconductor |
|
6N137 | LM393 | 2N3906 | 2N2222 | TIP120 | 1N5818 | LM324N | A1015 | SMAJ20CA |
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