
GPU
SunnyYoshimitsu/HTC64
Think Ben Eater's 6502 but modified....a modified BE6592...the Y!6502....

Think Ben Eater's 6502 but modified....a modified BE6592...the Y!6502....
Y6502 is an open-source printed circuit board by SunnyYoshimitsu, from the SunnyYoshimitsu/HTC64 repository on GitHub. It is a 2-layer board of 87.2 × 175.3 mm with 63 parts on 162 nets, routed with 3,067 tracks and 432 vias.
It is built around the MAX232N, LM1117DT-5.0 and 74LS00SC, with the 74LS14PC and 74LS32SC among its other parts. Its parts include 4 ICs, 1 diode and 1 connector.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 1uF | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | 1uF, 1uF, 1uF, 1uF, 1uF, 1uF, 1uF, 1uF, 1uF, 1uF, 1uF, 1uF, 1uF, C5 |
| 3 | 1.5k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1.5k, 1.5k, 1.5k |
| 3 | 680 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1.5k, 680, 680 |
| 3 | ~ | Connector_PinSocket_2.54mm:PinSocket_1x10_P2.54mm_Vertical | U1, U7, U8 |
| 2 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 100, 220 |
| 2 | 1N4007 | Diode_THT:D_A-405_P7.62mm_Horizontal | 1N4007, D5 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1k, 1k |
| 2 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 220, 680 |
| 2 | 22K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 22k, 22k |
| 2 | 74LS595 | Package_DIP:DIP-16_W7.62mm | 74LS595, 74LS595 |
| 2 | LED | LED_THT:LED_D3.0mm | +3.3v, +5v |
| 2 | LM1117DT-5.0 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | 3v3 Regulator, 5v Regulator |
| 1 | .1uF | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | .1uF |
| 1 | 1 MHz Osc | Oscillator:Oscillator_DIP-14 | 1MHz OSC. |
| 1 | 1.8432 Mhz | Crystal:Crystal_HC18-U_Vertical | 1.8432 MHz |
| 1 | 1M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 1M |
| 1 | 1N914 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D4 |
| 1 | 20uF | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | 20uF |
| 1 | 27C128 ROM | Package_DIP:DIP-28_W15.24mm_Socket | 27c128 ROM |
| 1 | 33k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | 33k |
| 1 | 47uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | 47uF |
| 1 | 62256 RAM | Package_DIP:DIP-28_W15.24mm_Socket | 62256 RAM |
| 1 | 6502 CPU | Package_DIP:DIP-40_W15.24mm_Socket | 6502 CPU |
| 1 | 6551 | Package_DIP:DIP-28_W15.24mm_Socket | 6551 SPI |
| 1 | 74LS00 | Package_DIP:DIP-14_W7.62mm | 74LS00 |
| 1 | 74LS14 | Package_DIP:DIP-14_W7.62mm | 74LS14 |
| 1 | 74LS32 | Package_DIP:DIP-14_W7.62mm | 74LS32 |
| 1 | Barrel_Jack_Power | Connector_BarrelJack:BarrelJack_GCT_DCJ200-10-A_Horizontal | J1 |
| 1 | I/O Timer 1 | Package_DIP:DIP-40_W15.24mm_Socket | A6522 VIA |
| 1 | I/O Timer 2 | Package_DIP:DIP-40_W15.24mm_Socket | B6522 VIA |
| 1 | MAX232 | Package_DIP:DIP-16_W7.62mm | U16 |
| 1 | P/S 2 Breakout | Custom_Footprints:Connector_Mini-DIN_Female_6Pin_2rows | P/S 2 |
| 1 | R232 Plug | Connector_Dsub:DSUB-9_Female_Horizontal_P2.77x2.84mm_EdgePinOffset9.90mm_Housed_MountingHolesOffset11.32mm | RS232 Output |
| 1 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | RESET |
| 1 | VGA Output | Connector_Dsub:DSUB-15-HD_Female_Horizontal_P2.29x1.98mm_EdgePinOffset8.35mm_Housed_MountingHolesOffset10.89mm | VGA Output |
| 1 | ~ | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | ~ |

SunnyYoshimitsu/HTC64
Think Ben Eater's 6502 but modified....a modified BE6592...the Y!6502....

fabiodl/sf7000
Most of the work was done by Andrea Ottaviani https://github.com/aotta


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roberto314/EVA-1_Reproduction
Recreation of the very rare K-K Systems EVA-1 Display Adapter for the Epson HX-20 Computer

It measures 87.2 × 175.3 mm and has 2 copper layers, 1.6 mm thick.
63 parts, built around the MAX232N, LM1117DT-5.0, 74LS00SC and 74LS14PC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the SunnyYoshimitsu/HTC64 repository on GitHub, at the commit this page was made from: the board is Kicad/Y6502.kicad_pcb and its schematic DPRAM GPU/GPU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask SunnyYoshimitsu before reusing the design.