| No | Part number | Description ( Function ) | Manufacturers | |
| 5 | 80C251 | N80C251 ( DataSheet : ) PRELIMINARY 8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER Commercial/Express s Real-time and Programmed Wait State Bus Operation s Binary-code Compatible with MCS® 51 s Pin Compatible with 44-pin PLCC and 40pin PDIP MCS 51 Sockets s Register-based MCS® 251 Architecture — 40-byte Register File — Registers Accessible as Bytes |
 Intel |
|
| 4 | 80C251SA | HIGH-PERFORMANCE CHMOS MICROCONTROLLER PRELIMINARY 8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER Commercial/Express s Real-time and Programmed Wait State Bus Operation s Binary-code Compatible with MCS® 51 s Pin Compatible with 44-pin PLCC and 40pin PDIP MCS 51 Sockets s Register-based MCS® 251 Architecture — 40-byte Register File — Registers Accessible as Bytes, Words, or Double Words s Enriched M |
Intel |
|
| 3 | 80C251SB | HIGH-PERFORMANCE CHMOS MICROCONTROLLER PRELIMINARY 8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER Commercial/Express s Real-time and Programmed Wait State Bus Operation s Binary-code Compatible with MCS® 51 s Pin Compatible with 44-pin PLCC and 40pin PDIP MCS 51 Sockets s Register-based MCS® 251 Architecture — 40-byte Register File — Registers Accessible as Bytes, Words, or Double Words s Enriched M |
Intel |
|
| 2 | 80C251SP | HIGH-PERFORMANCE CHMOS MICROCONTROLLER PRELIMINARY 8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER Commercial/Express s Real-time and Programmed Wait State Bus Operation s Binary-code Compatible with MCS® 51 s Pin Compatible with 44-pin PLCC and 40pin PDIP MCS 51 Sockets s Register-based MCS® 251 Architecture — 40-byte Register File — Registers Accessible as Bytes, Words, or Double Words s Enriched M |
Intel |
|
| 1 | 80C251SQ | HIGH-PERFORMANCE CHMOS MICROCONTROLLER PRELIMINARY 8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER Commercial/Express s Real-time and Programmed Wait State Bus Operation s Binary-code Compatible with MCS® 51 s Pin Compatible with 44-pin PLCC and 40pin PDIP MCS 51 Sockets s Register-based MCS® 251 Architecture — 40-byte Register File — Registers Accessible as Bytes, Words, or Double Words s Enriched M |
Intel |
|
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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