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Std edition 基于DIP40封装的avr系统
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Description
基于DIP40封装的avr系统，有ISP下载口，usb接口，可输入12V供电，可输出5V和3.3V，可接LCD1602。
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | -L7805 | U1 | L7805 | 1 |
| 2 | 330uF | C1,C2 | C-4MM | 2 |
| 3 | NO | U2 | DIP40-2.54-52.3X15.24MM | 1 |
| 4 | 220uF | C3 | C-4MM | 1 |
| 5 | 1K | R1 | AXIAL-0.4 | 1 |
| 6 | 220uF | C4 | 10U | 1 |
| 7 | 104 | C5,C10,C11 | C0805 | 3 |
| 8 | DIP2P-5.08 | J1 | 2EDG-2L | 1 |
| 9 | AVR_SPI_PROG | U3 | AVR_ICSP | 1 |
| 10 | LCD1602 | DS1 | 1602 | 1 |
| 11 | ASM1117 | U4 | SOT223 | 1 |
| 12 | 100k | R2 | TRIM_POT_PTH | 1 |
| 13 | 550 | R3,R4,R5,R6,R7,R8 | R3 | 6 |
| 14 | LED | D1,D2,D3,D4,D5,D6,D7 | LED3MM | 7 |
| 15 | Buzzer | U6 | Buzzer | 1 |
| 16 | pin8 | P2,P1,P3,P4 | pin8 | 4 |
| 17 | FT232RL-board | P5 | FT232RL-board | 1 |
| 18 | XTALfast | Q2 | CRYSTAL | 1 |
| 19 | 22p | C6,C7 | 22P | 2 |
| 20 | 2EDG-4L | J2 | 2EDG-4L | 1 |
| 21 | MAX232 | U5 | SO016 | 1 |
| 22 | DB9 | X1 | DB9 | 1 |
| 23 | 10u | C8,C9 | 10U | 2 |
| 24 | S9013-NPN | Q1 | TO-92-NPN | 1 |
| 25 | NO | K2,K3 | KEY4big | 2 |
| 26 | NO | K1 | KEY4 | 1 |
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