| No | Part number | Description ( Function ) | Manufacturers | |
| 2 | HT16C23 | LCD Driver Controller HT16C23/HT16C23G RAM Mapping 56*4 / 52*8 LCD Driver Controller Features ●● Operating voltage: 2.4 ~ 5.5V ●● Internal 32kHz RC oscillator ●● Bias: 1/3 or 1/4; Duty:1/4 or 1/8 ●● Internal LCD bias generation with voltagefollower buffers ●● I2C-bus interface ●● Two Selectable LCD frame frequencies: 80Hz or 160Hz ●● Up to 52 x 8 bits |
 Holtek Semiconductor |
|
| 1 | HT16C23G | LCD Driver Controller HT16C23/HT16C23G RAM Mapping 56*4 / 52*8 LCD Driver Controller Features ●● Operating voltage: 2.4 ~ 5.5V ●● Internal 32kHz RC oscillator ●● Bias: 1/3 or 1/4; Duty:1/4 or 1/8 ●● Internal LCD bias generation with voltagefollower buffers ●● I2C-bus interface ●● Two Selectable LCD frame frequencies: 80Hz or 160Hz ●● Up to 52 x 8 bits |
Holtek 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 |
|||