

Pixy-68000
My own Single-Borard-Computer projects.
- Size
- 129.5 × 115.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 94
- Nets
- 158
- Pads
- 648
- Tracks, vias
- 3,590, 778
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 29 Oct 2023
- Updated
- 6 May 2025
Overview
Pixy-68000 is an open-source printed circuit board by kekyo, from the kekyo/Pixy repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 129.5 × 115.6 mm with 94 parts on 158 nets, routed with 3,590 tracks and 778 vias.
It is built around the ATMEGA328P-AU, LCMXO2-640HC-4TG100I and MC68SEC000FU20, with the CH340N and IS61WV5128BLL-10TLI among its other parts. Its parts include 29 capacitors, 25 resistors, 10 connectors, 9 ICs and 9 diodes. It belongs with the fPGA and programmable logic and computers and single-board computers boards and the AVR (ATmega, ATtiny) and FPGA and CPLD boards of this library.
Main components
5ATMEGA328P-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 23 2KB 32KB 8 Bit AVR Built-in FLASH TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)LCMXO2-640HC-4TG100I
TQFP-100(14x14)-40℃~+100℃ 18432bit 2.375V~3.465V 640 78 80 MachXO2 Supports hot swap TQFP-100(14x14) Programmable Logic Device (CPLDs/FPGAs) ROHSLatticeProgrammable Logic Device (CPLDs/FPGAs)MC68SEC000FU20
QFP-64(14x14)0℃~+70℃ 20MHz 32 Bit External External Others QFP-64(14x14) Microcontrollers (MCU/MPU/SOC) ROHSMOTOROLAMicrocontrollers (MCU/MPU/SOC)CH340N
SOP-8-20℃~+70℃ 1 2Mbps 3.3V、5V USB 2.0 USB to serial SOP-8 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB ConvertersIS61WV5128BLL-10TLI
TSOPII-44-10.2mm-40℃~+85℃ 10mA 10ns 2.4V~3.6V 45mA 4Mbit Auto power-down function Parallel Port (Parallel) TSOPII-44-10.2mm SRAM ROHSISSISRAM
README
README.mdPixy - Single board computer projects
What is this?
My owned single board computer projects.
Pixy-68000
- Motorola MC68SEC000-20 (Static low-powered m68k arch.)
- ATMEL AVR ATMega-328PB
- Co-processor for 7segLEDs, LEDs, switches and serial interface.
- LATTICE MachXO2 LCMXO2-640
- Bus controller, captured all signals from the CPU.
- SRAM 1MB (512kbit * 2)
- Flash PROM 1MB (512kbit * 2, PLCC)
Assembled (Pixy-68000-0):

Pixy-mega128
- ATMEL ATMega128-16AU (Simplest 48+ GPIO)
- Enabled Arduino IDE with MegaCore.
Assembled (Pixy-mega128-0):

Pixy-mega128-sdram-hat
- SDRAM: ELPIDA EDS1216AGTA (16MB: 8Mwords * 16bit)
- EXPERIMENTAL circuit board for learning how to use SDRAM.
Assembled (Pixy-mega128-sdram-hat-0):

License
Apache-V2
Parts
94| Qty | Value | Footprint | References |
|---|---|---|---|
| 27 | 0.1u | kekyo:C_0805_2012 | C1, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24 +11 |
| 14 | 2k | kekyo:R_0805_2012 | R1, R6, R10, R12, R16, R17, R18, R19, R20, R21, R22, R23, R24, R29 |
| 5 | 1.5k | kekyo:R_0805_2012 | R2, R3, R8, R9, R15 |
| 4 | MountingHole_3mm_Pad | MountingHole:MountingHole_3mm_Pad | REF1, REF2, REF3, REF4 |
| 4 | Socket5 | kekyo:PinSocket_1x05_P2.54mm_Vertical | J4, J5, J6, J7 |
| 3 | 1k | kekyo:R_0805_2012 | R7, R11, R14 |
| 2 | 100u | kekyo:CP_Radial_D5.0mm_P2.50mm | C2, C3 |
| 2 | 5.1k | kekyo:R_0805_2012 | R4, R5 |
| 2 | IS61WV5128BLL-10TLI | Package_SO:TSOP-II-44_10.16x18.41mm_P0.8mm | U6, U7 |
| 2 | SST39SF040 | Package_LCC:PLCC-32_THT-Socket | U8, U9 |
| 1 | 10k | kekyo:R_0805_2012 | R13 |
| 1 | ATmega328P-AU | Package_QFP:TQFP-32_7x7mm_P0.8mm | U5 |
| 1 | AVR_ISP | kekyo:PinHeader_2x03_P2.54mm_Vertical | J2 |
| 1 | BUS | Connector_PinHeader_2.54mm:PinHeader_2x25_P2.54mm_Vertical | J8 |
| 1 | CH340N | kekyo:SOP-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | DONE | kekyo:LED_D3.0mm | D3 |
| 1 | HALT | kekyo:LED_D3.0mm | D9 |
| 1 | Header3 | kekyo:PinHeader_1x03_P2.54mm_Vertical | J10 |
| 1 | Header8 | kekyo:PinHeader_1x08_P2.54mm_Vertical | J9 |
| 1 | INIT | kekyo:LED_D3.0mm | D4 |
| 1 | JTAG | kekyo:PinHeader_2x06_P2.54mm_Vertical | J3 |
| 1 | LCMXO2-640HC-4TG100I | kekyo:TQFP100_LAT-M | U4 |
| 1 | LED0 | kekyo:LED_D3.0mm | D5 |
| 1 | LED1 | kekyo:LED_D3.0mm | D6 |
| 1 | LED2 | kekyo:LED_D3.0mm | D7 |
| 1 | LED3 | kekyo:LED_D3.0mm | D8 |
| 1 | MC68SEC000-FU | kekyo:MC68SEC000-FU | U3 |
| 1 | NJM2391 | kekyo:TO-252-3_TabPin4 | U1 |
| 1 | Oscillator | kekyo:Oscillator_SMD_4Pin_7.0x5.0mm_HandSoldering | X1 |
| 1 | POWER | kekyo:LED_D3.0mm | D1 |
| 1 | RUN | kekyo:LED_D3.0mm | D2 |
| 1 | STEP | kekyo:TactSwitch | SW_STEP1 |
| 1 | STEPEN | kekyo:SW_Toggle_3P | SW_STEPEN1 |
| 1 | SW0 | kekyo:TactSwitch | SW0 |
| 1 | SW1 | kekyo:TactSwitch | SW1 |
| 1 | SW2 | kekyo:TactSwitch | SW2 |
| 1 | SW3 | kekyo:TactSwitch | SW3 |
| 1 | SW4 | kekyo:TactSwitch | SW4 |
| 1 | USB | kekyo:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
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Questions
How big is the Pixy-68000 PCB?
It measures 129.5 × 115.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Pixy-68000 use?
94 parts, built around the ATMEGA328P-AU, LCMXO2-640HC-4TG100I, MC68SEC000FU20 and CH340N. 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 Pixy-68000 KiCad files?
From the kekyo/Pixy repository on GitHub, at the commit this page was made from: the board is Pixy-68000/Pixy-68000-0/KiCad/Pixy-68000.kicad_pcb and its schematic Pixy-68000/Pixy-68000-0/KiCad/Pixy-68000.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pixy-68000 design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).