2 layers213.1 × 129 mm
2 layers117.5 × 99.7 mm
VGA board for NLP-16A
- Size
- 117.5 × 99.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 72
- Nets
- 201
- Pads
- 524
- Tracks, vias
- 1,288, 261
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 2 Feb 2025
- Updated
- 28 Feb 2025
Overview
VGA is an open-source printed circuit board by cherry-takuan, from the cherry-takuan/NLP_VGA repository on GitHub. It is a 2-layer board of 117.5 × 99.7 mm with 72 parts on 201 nets, routed with 1,288 tracks and 261 vias.
It is built around the 74HC244D, 74LS245SC and 74LS195APC, with the 74HC02, 74HC04D and 74HC273D among its other parts. Its parts include 19 capacitors, 18 resistors, 16 ICs, 3 diodes and 3 connectors.
Main components
8
74HC244D
SO-20-300mil-40℃~+125℃ 160uA 2 2V~6V 4 6mA 6mA 74HC 9ns@5V,15pF Tri-State Unidirectional SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers74LS245SC
-0℃~+70℃ 12ns@5V,45pF 15mA 24mA 4.75V~5.25V 74LS 8 Bidirectional Output enable Schmitt trigger Tri-State - Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
74LS195APC
PDIP-160℃~+70℃ 1 4 4.75V~5.25V 74LS Asynchronous clear function、Asynchronous parallel load function PDIP-16 Shift RegistersTexas InstrumentsShift Registers74HC02
-- Logic Gates ROHSonsemiLogic Gates
74HC04D
SOP-14-40℃~+125℃ 1 1.5V~4.2V 1.9V、3.7V、5.2V 100mV、400mV、400mV 14ns@6V,50pF 2V~6V 2uA 5.2mA 5.2mA 500mV~1.8V 6 74HC SOIC-14 Inverters ROHSNexperiaInverters74HC273D
SOIC-20-300mil-40℃~+125℃ 1 12ns 15ns@4.5V,50pF 2V~6V 3.5pF 30MHz 3ns 74HC Series 8 8uA D-Type Reset Rising Edge SO-20-300mil Flip Flops ROHSNexperiaFlip Flops74HC74D
SOIC-14-40℃~+125℃ 1 15ns 2 2V~6V 3.5pF 37ns@6V,50pF 3ns、3ns、3ns 40uA 5.2mA 5.2mA 74HC Series 82MHz Asynchronous Complementary D-Type Rising Edge Set and Reset SOIC-14 Flip Flops ROHSNexperiaFlip Flops
CD74HC08E
PDIP-14-55℃~+125℃ 1.5V~4.2V 1.9V、3.7V、5.2V 15ns@6V,50pF 2 2V~6V 2uA 4 400mV 5.2mA 5.2mA 500mV~1.8V 74HC Series AND Gate PDIP-14 Logic Gates ROHSTexas InstrumentsLogic Gates
README
README.mdNLP_VGA
Parts
72| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | C | Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm | C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15, C16 |
| 11 | R | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R8, R9, R10, R11, R12, R13, R14, R15, R16, R17, R18 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3mm_Pad | H1, H2, H3, H4 |
| 3 | 200 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3, R4 |
| 3 | 470 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R5, R6, R7 |
| 3 | 74HC244 | Package_DIP:DIP-20_W7.62mm | U13, U14, U15 |
| 3 | LED | LED_THT:LED_D3.0mm | D1, D2, D3 |
| 3 | TestPoint | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP1, TP2, TP3 |
| 2 | 22p | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C17, C18 |
| 2 | 4040 | Package_DIP:DIP-16_W7.62mm | U5, U8 |
| 2 | 74LS195 | Package_DIP:DIP-16_W7.62mm | U9, U10 |
| 2 | Conn_02x20_Odd_Even | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Vertical | J2, J3 |
| 2 | SST39SF010A | Package_DIP:DIP-32_W15.24mm | U7, U12 |
| 1 | 1M | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Vertical | R1 |
| 1 | 25M | Crystal:Crystal_HC18-U_Vertical | Y1 |
| 1 | 74HC02 | Package_DIP:DIP-14_W7.62mm | U3 |
| 1 | 74HC04 | Package_DIP:DIP-14_W7.62mm | U1 |
| 1 | 74HC273 | Package_DIP:DIP-20_W7.62mm | U6 |
| 1 | 74HC74 | Package_DIP:DIP-14_W7.62mm | U2 |
| 1 | 74LS245 | Package_DIP:DIP-20_W7.62mm | U16 |
| 1 | C | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C19 |
| 1 | CD74HC08 | Package_DIP:DIP-14_W7.62mm | U4 |
| 1 | DB15_Female_HighDensity_MountingHoles | Connector_Dsub:DSUB-15-HD_Female_Horizontal_P2.29x1.98mm_EdgePinOffset3.03mm_Housed_MountingHolesOffset4.94mm | J1 |
| 1 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | LOGO | LOGO | G*** |
| 1 | R_Network04 | Resistor_THT:R_Array_SIP5 | RN1 |
| 1 | SW_DIP_x03 | Button_Switch_THT:SW_DIP_SPSTx03_Piano_10.8x9.18mm_W7.62mm_P2.54mm | SW1 |
| 1 | SW_DIP_x04 | Button_Switch_THT:SW_DIP_SPSTx04_Piano_10.8x11.72mm_W7.62mm_P2.54mm | SW2 |
| 1 | TC551001 | Package_DIP:DIP-32_W15.24mm | U11 |
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Questions
How big is the VGA PCB?
It measures 117.5 × 99.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the VGA use?
72 parts, built around the 74HC244D, 74LS245SC, 74LS195APC and 74HC02. 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.
Where can I download the VGA KiCad files?
From the cherry-takuan/NLP_VGA repository on GitHub, at the commit this page was made from: the board is VGA.kicad_pcb and its schematic VGA.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the VGA design in my own project?
Its repository states no licence, so its author keeps all rights: ask cherry-takuan before reusing the design.