2 layers141.8 × 24.9 mm
PowerBoth
quezadaminter/CR101kc
The electrical schematics and PCB layout for the CR101 boards.
48 partsMIT
2 layers157.1 × 85.3 mm
The electrical schematics and PCB layout for the CR101 boards.
- Size
- 157.1 × 85.3 mm
- Copper layers
- 2
- Thickness
- 0.8 mm
- Parts
- 100
- Nets
- 109
- Pads
- 377
- Tracks, vias
- 1,340, 551
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 23 Apr 2020
- Updated
- 18 Jan 2021
Overview
CPU is an open-source printed circuit board by quezadaminter, from the quezadaminter/CR101kc repository on GitHub, published under the MIT licence. It is a 2-layer board of 157.1 × 85.3 mm with 100 parts on 109 nets, routed with 1,340 tracks and 551 vias.
It is built around the ATMEGA328PB-AU, ATTINY1614-SSN and OPT3001, with the IRLML0040TRPBF and DMC4050SSD among its other parts. Its parts include 23 resistors, 22 capacitors, 14 switches, 13 diodes and 5 transistors. It belongs with the AVR (ATmega, ATtiny) and Raspberry Pi (Linux) boards of this library.
Main components
5
ATMEGA328PB-AU
TQFP-32(7x7)-40℃~+85℃ 1.8V~5.5V 10bit 1KB 20MHz 27 2KB 32KB 8 Bit AVR Built-in FLASH Power-on reset (POR)、Undervoltage detection (BOR/LVD/LVR/LVI)、Watchdog reset、External pin reset (NRST)、Built-in general-purpose timer、Programmable watchdog、Touch function TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
ATTINY1614-SSN
SOIC-14-40℃~+105℃ 1.8V~5.5V 10bit 12 16KB 20MHz 256Byte 2KB 8 Bit 8bit AVR Built-in FLASH SOIC-14 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)OPT3001
DFN-6(2x2)DFN-6(2x2) New Arrivals ROHSEverlight ElectronicsUncategorised
IRLML0040TRPBF
TO-236-3-55℃~+150℃ 1 N-channel 1.3W 2.5V 266pF 29pF 3.6A 3.9nC@10V 40V 56mΩ@10V SOT-23 MOSFETs ROHSInfineon TechnologiesMOSFETs
DMC4050SSD
SO-8-55℃~+150℃ 1 N-Channel + 1 P-Channel 1.64317nF、1.7908nF 1.8V、1.8V 120.5pF、127.82pF 14.3mW 37.56nC@10V 4.2A 40V 60mΩ@4.5V Half-Bridge SO-8 MOSFETs ROHSDiodes IncorporatedMOSFETs
README
README.mdCR101kc
The electrical schematics and PCB layout for the CR101 boards.
Firmware
https://github.com/quezadaminter/CR101fw
User code
https://github.com/quezadaminter/CR101py
Parts
100| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 0.1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C202, C304, C305, C306, C307, C308, C309, C310, C311, C312, C313, C314, C315, C316 |
| 13 | TACTILE_SWITCHPTS540-SMD | CPU:PTS540-ULTRA_LOW_PROFILE_SW_SPST | SW301, SW302, SW303, SW304, SW305, SW306, SW307, SW308, SW309, SW310, SW311, SW312, SW313 |
| 9 | 330 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R301, R302, R303, R304, R305, R306, R307, R308, R309 |
| 9 | LED0603 | CPU:LED-0603 | D301, D302, D303, D304, D305, D306, D307, D308, D309 |
| 8 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R101, R102, R103, R104, R201, R205, R208, R209 |
| 7 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | RX301, TP301, TP302, TP303, TP304, TP305, TX301 |
| 4 | IRLML0040TR | CPU:SOT23 | Q101, Q102, Q301, Q302 |
| 2 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C201, C207 |
| 2 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C203, C301 |
| 2 | 270 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R310, R311 |
| 2 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J301, J303 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D2.0mm | TPRX201, TPTX201 |
| 1 | 10 nF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C204 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R312 |
| 1 | 100pF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C206 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C303 |
| 1 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R204 |
| 1 | 1X4SMD-FPC | CPU:KYOCERA-6227-FPC_FFC | J302 |
| 1 | 2K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R203 |
| 1 | 390K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R202 |
| 1 | 47uF | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C205 |
| 1 | 598-8030-107F | CPU:LEDSC160X80X70L45N | D311 |
| 1 | ATmega328PB-AU | Package_QFP:TQFP-32_7x7mm_P0.8mm | U301 |
| 1 | ATtiny1614-SS | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U202 |
| 1 | BUZZERTHT | CPU:XDCR_CMT-0904-85T | B301 |
| 1 | Conn_02x10_Odd_Even | Connector_PinHeader_2.00mm:PinHeader_2x10_P2.00mm_Vertical_SMD | J101 |
| 1 | Conn_02x14_Odd_Even_MountingPin | CPU:2X14_SMT_MALE-2 | J102 |
| 1 | DIODE | CPU:MICRO_SMP | D312 |
| 1 | DMC4050 | Package_SO:SO-8_3.9x4.9mm_P1.27mm | Q201 |
| 1 | OPT3001 | CPU:DNP0006A | U201 |
| 1 | PI_RESET | TestPoint:TestPoint_Pad_D1.0mm | TP101 |
| 1 | RG | CPU:INOLUX_IN-S85DATRG | D310 |
| 1 | RPI-ZERO | CPU:RASPBERRYPI_Zero-No_Mounting_Holes_SMD_Flat | Pi101 |
| 1 | Resonator_Small | Crystal:Resonator_SMD_muRata_CSTxExxV-3Pin_3.0x1.1mm_HandSoldering | Y301 |
| 1 | SW_SPDT | Marco:SWITCH_PCM12SMTR_SPDT | SW101 |
| 1 | Schottky | Diode_SMD:D_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D201 |
| 1 | TestPoint | TestPoint:TestPoint_Pad_4.0x4.0mm | TP201 |
The 99 most common of 100 parts.
Questions
How big is the CPU PCB?
It measures 157.1 × 85.3 mm and has 2 copper layers, 0.8 mm thick.
What parts does the CPU use?
100 parts, built around the ATMEGA328PB-AU, ATTINY1614-SSN, OPT3001 and IRLML0040TRPBF. 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 CPU KiCad files?
From the quezadaminter/CR101kc repository on GitHub, at the commit this page was made from: the board is CPU/CPU.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the CPU design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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