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STD Motorola 68705 programmer
Mode: Editors' pick
- 1
Update time：
2021-03-19 09:21:04
Creation time：
2017-03-27 21:49:03
Description
This Motorola 68705 programmer copy the content of a 2764 to the microcontroller.
Unfortunately the two buttons are in wrong direction, the internal short circuits are there instead of the switches.
The 5to26V converter is: http://www.icstation.com/sx1308-converter-step-adjustable-power-module-booster-converter-p-6016.html
Design Drawing
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 4k7 | R3,R7,R6,R2 | AXIAL-0.3 | 4 |
| 2 | MC68705U3CL | U1 | DIP-40 | 1 |
| 3 | CD4040BCN | U3 | DIP16 | 1 |
| 4 | 510 | R5,R4 | AXIAL-0.3 | 2 |
| 5 | 204-10UYC/S530-A3 | DS2,DS1 | LED-3MM/2.54 | 2 |
| 6 | 1N4001 | D1,D3,D4 | DO-41 | 3 |
| 7 | 2N2222 | Q1,Q2 | TO92-INLINE | 2 |
| 8 | 100 | R1 | AXIAL-0.3 | 1 |
| 9 | 0.1u | C1 | RAD-0.1 | 1 |
| 10 | 22V | D2 | DIODE-ZENER | 1 |
| 11 | 2764 | U2 | DIP-28 | 1 |
| 12 | 6x6x5_TH | S1,S2 | SWITCH-6X6X5_TH | 2 |
| 13 | MC78L12ACP | U5 | TO92-INLINE | 1 |
| 14 | 1u | C4,C5,C2 | RAD-0.1 | 3 |
| 15 | 1MHz | Y1 | OSC-49S-1 | 1 |
| 16 | 100p | C3 | RAD-0.1 | 1 |
| 17 | 75p | C8 | RAD-0.1 | 1 |
| 18 | 10u | C6,C7 | CAP-D3.0XF1.5 | 2 |
| 19 | JPIN | VIN,GROUND | 1-PIN | 2 |
| 20 | ADIP26A05 | U4 | ADIP26A05 | 1 |
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