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STD Ben Eater 6502 Computer 2
Ben Eater 6502 Computer 2
License
Public Domain
License: Public Domain- 0
Update time：
2024-04-03 12:20:38
Creation time：
2024-03-04 15:00:22
Description
Description
This is a schematic of the Ben Eater 6502 computer as featured on his YouTube channel. PORTB is connected to the LCD in 4-bit mode. PORTA is brought out to a header. Address, data and control lines are also brought out to a header. I have succesfuly loaded WOZMON, ehbasic, BBC Basic, etc.
Design Drawing
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | |
|---|---|---|---|---|---|
| 1 | 100 uF | C1 | CAP-D3.0×F1.5 | 1 | |
| 2 | 22pF | C2 | RAD-0.1 | 1 | |
| 3 | 100nF | C3,C4,C5,C6,C7,C8,C9 | RAD-0.2 | 7 | |
| 4 | SB140 | D1 | D_DO-41_SOD81_P10.16MM_HORIZONTAL | 1 | |
| 5 | 5116 | GND | TESTPOINT-TH_BD2.5-D1.0 | 1 | |
| 6 | 5V DC Power In | J1 | POWER_JACK_PTH | 1 | |
| 7 | USB FTDI | J2 | HDR-6X1/2.54 | 1 | |
| 8 | Header 1X14P | J3 | HEADER-1X14P | 1 | |
| 9 | Header-Male-2.54_2x18 | J4 | HEADER-MALE-2.54_2X18 | 1 | |
| 10 | USB POWER JUMPER | J5 | HDR-2X1/2.54 | 1 | |
| 11 | POWER | LED1 | LED-3MM/2.54 | 1 | |
| 12 | 10k | R1,R2 | R_AXIAL-0.3 | 2 | |
| 13 | 1k | R3 | AXIAL-0.3 | 1 | |
| 14 | 1M | R4 | R_AXIAL-0.3 | 1 | |
| 15 | button6*6*8.5 | RESET | KEY-TH_4P-L6.0-W6.0-P4.50 | 1 | |
| 16 | 10K | RP1 | RES-ADJ-TH_3386P | 1 | |
| 17 | W65C22 VIA | U1 | DIP-40_2.54 | 1 | |
| 18 | W65C02SP | U2 | DIP-40 | 1 | |
| 19 | LCD 16x2_HD44780U | U3 | LCD 16X2 | 1 | |
| 20 | AS6C62256 SRAM | U4 | PDIP-28 | 1 | |
| 21 | AT28C256 | U6 | AT28C256 | 1 | |
| 22 | W65C51N | U7 | PDIP-28_L37.0-W13.5-P2.54-LS15.6-BL | 1 | |
| 23 | Crystal Oscillator 1MHz | X1 | OSCILLATOR_2MHZ | 1 | |
| 24 | NO | X2 | OSC-TH_L10.0-W4.5-P5.00 | 1 | |
| 25 | 74HC00 | U5 | DIP14 | 1 | 1 |
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