2 layers100 × 100 mm
2 layers100 × 100 mm
A 8-bit computer made of 74xx series logic gates and memory ICs.
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 123
- Nets
- 109
- Pads
- 569
- Tracks, vias
- 1,990, 399
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 22 Dec 2019
- Updated
- 24 Feb 2025
Overview
Ccpu is an open-source printed circuit board by imihajlow, from the imihajlow/ccpu repository on GitHub. It is a 2-layer board of 100 × 100 mm with 123 parts on 109 nets, routed with 1,990 tracks and 399 vias.
It is built around the SN74LV244APW, IS61C256AL-12TLI and SN74LV273APW, with the 74HC30D, 74LV32APWJ and SN74LV00APW among its other parts. Its parts include 53 resistors, 37 diodes, 12 capacitors, 11 ICs and 6 connectors. It belongs with the retro computing and games boards of this library.
Main components
10
SN74LV244APW
TSSOP-20-40℃~+125℃ 16mA 16mA 2 20uA 2V~5.5V 4 4.9ns@5V,50pF 74LV Tri-State Unidirectional TSSOP-20 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
IS61C256AL-12TLI
TSSOP-28-11.8mm-40℃~+85℃ 12ns 256Kbit 4.5V~5.5V 40mA 450uA Auto power-down function Parallel Port (Parallel) TSSOP-28-11.8mm SRAM ROHSISSISRAMSN74LV273APW
TSSOP-20-40℃~+125℃ 1 10.5ns@5V,50pF 12mA 12mA 160MHz 20uA 2V~5.5V 2pF 4.5ns 74LV Series 8 D-Type Push-Pull Reset Rising Edge TSSOP-20 Flip Flops ROHSTexas InstrumentsFlip Flops
74HC30D
SOP-14-40℃~+125℃ 0V~100mV、160mV~260mV 1 1.5V~4.2V 22ns@6V,50pF 2V~6V 2uA 5.2mA 5.2mA 5.48V~5.81V、5.9V~6V 500mV~1.8V 74HC Series 8 NAND Gate StandardCMOS SOIC-14 Logic Gates ROHSNexperiaGates
74LV32APWJ
TSSOP-14-40℃~+125℃ 1.9V~3.8V 100mV~550mV 12mA 12mA 2 2V~5.5V 2V、2.48V、3.8V 2uA 4 400mV、440mV、550mV 7.5ns@5V,50pF 74LV Series OR Gate Overvoltage-tolerant input、Local shutdown mode TSSOP-14 Logic Gates ROHSNexperiaLogic GatesSN74LV00APW
TSSOP-14-40℃~+85℃ 1.5V 100mV、400mV、440mV、550mV 12mA 12mA 2 20uA 2V~5.5V 4 500mV 6.5ns@5V,50pF 74LV Series NAND Gate TSSOP-14 Logic Gates ROHSTexas InstrumentsLogic Gates
SN74LV139APW
TSSOP-16-40℃~+85℃ 10.5ns 2V~5.5V 4:1 8 TSSOP-16 Analog Switches, Multiplexers ROHSTexas InstrumentsSignal Switches, Multiplexers, Decoders
KP-2012EC
0805-40℃~+85℃ 15mcd 160° 2.5V 20mA 617nm 627nm 75mW Discrete Diode Red Water Clear 0805 LED Indication - Discrete ROHSKingbrightPre-Ordered Transistors
KP-2012CGCK
0805-40℃~+85℃ 140° 2.1V 20mA 50mcd 570nm 574nm 75mW Discrete Diode Water Clear Yellow Green 0805 LED Indication - Discrete ROHSKingbrightLED Indication - DiscreteSSW-120-02-G-D-RA
弯插,P=2.54mmFemale HeadersSamtec
README
README.mdA 74xx discrete logic IC-based computer.
Folder structure:
doc- documentationmodel- Verilog model and test benchesboards- KiCAD designs of the computertools- various tools: ALU generator, assembler, linker, compiler, simulator.app- software tests and applications
Parts
123| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | 620 | Resistor_SMD:R_0805_2012Metric | R1, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27, R28, R29 +16 |
| 32 | KP-2012EC | LED_SMD:LED_0805_2012Metric | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +16 |
| 11 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C2, C3, C4, C5, C6, C8, C9, C12, C13, C14, C16 |
| 8 | 10k | Resistor_SMD:R_0805_2012Metric | R39, R40, R41, R42, R43, R44, R45, R46 |
| 8 | 1k | Resistor_SMD:R_0805_2012Metric | R7, R8, R9, R10, R11, R12, R13, R14 |
| 5 | 600 | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R5, R6 |
| 5 | KP-2012CGCK | LED_SMD:LED_0805_2012Metric | D1, D2, D3, D4, D5 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J5, J7 |
| 2 | IS61C256AL-12TLI | Package_SO:TSOP-I-28_11.8x8mm_P0.55mm | U5, U13 |
| 2 | SN74LV273APW | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U7, U11 |
| 2 | SSW-120-02-G-D-RA | Connector_PinSocket_2.54mm:PinSocket_2x20_P2.54mm_Horizontal | J2, J6 |
| 1 | 25.0x6.3v | Capacitor_Tantalum_SMD:CP_EIA-3528-21_Kemet-B_Pad1.50x2.35mm_HandSolder | C7 |
| 1 | 61304021021 | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Horizontal | J1 |
| 1 | 694106301002 | Connector_BarrelJack:BarrelJack_Wuerth_6941xx301002 | J4 |
| 1 | 74HC30D | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U9 |
| 1 | 74LV32APWJ | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U1 |
| 1 | AT28C256-PLCC32 | missing:PLCC-32_SMD_Socket | U4 |
| 1 | MC74HC151ADTR2G | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U10 |
| 1 | SN74LV00APW | Package_SO:TSSOP-14_4.4x5mm_P0.65mm | U2 |
| 1 | SN74LV139APW | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U14 |
| 1 | SN74LV244APW | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U8 |
More from imihajlow/ccpu
7- 2 layers90 × 100 mm
- 4 layers100 × 100 mm
- 2 layers100 × 100 mm
- 2 layers100 × 100 mm
- 2 layers100 × 100 mm
- 2 layers90 × 100 mm
Similar boards
- 2 layers222 × 142 mm
- 2 layers32.4 × 19.3 mm
MDPP
pcm720/mdpp-r
MegaDrive++ R is a universal modchip for SEGA Mega Drive/Genesis that supports language switching, 50/60 Hz switching and in-game reset (IGR) using Mega Drive Control Pad
20 parts9GPL-3.0 - 4 layers81 × 37 mm
Maidenhead pocket locator
EdmundLimBoEn/gps-maidenhead-device
Open-source portable GNSS Maidenhead grid locator with a 16x2 LCD
117 parts - 2 layers100 × 80 mm
- 2 layers30 × 30 mm
ReCamera Gimbal
Seeed-Studio/OSHW-reCamera-Series
reCamera is a series of open-source AI cameras.
123 parts495Apache-2.0 - 2 layers231.8 × 158.1 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
123 parts326 - 2 layers89 × 55.5 mm
Mintypcb
jackw01/pi-tin
Open source raspberry pi handheld retro gaming console
123 parts75CERN-OHL-W-2.0 - 2 layers97.5 × 97.5 mm
Ud29
profdc9/DRSSTC-PCB-Pack
A pack of PCBs for a dual resonant solid state tesla coil setup. Pretty much everything you need.
123 parts59
Questions
How big is the Ccpu PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ccpu use?
123 parts, built around the SN74LV244APW, IS61C256AL-12TLI, SN74LV273APW and 74HC30D. 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 Ccpu KiCad files?
From the imihajlow/ccpu repository on GitHub, at the commit this page was made from: the board is boards/io/io.kicad_pcb and its schematic boards/eth/eth.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ccpu design in my own project?
Its repository states no licence, so its author keeps all rights: ask imihajlow before reusing the design.