2 layers85 × 85 mm
4 layers82 × 82 mm
Root electronics repo
- Size
- 82 × 82 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 122
- Nets
- 125
- Pads
- 639
- Tracks, vias
- 1,637, 148
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 14 Mar 2016
- Updated
- 7 Feb 2020
Overview
Cpu4 is an open-source printed circuit board by SpaceScienceSweden, from the SpaceScienceSweden/ulv_electronics repository on GitHub. It is a 4-layer board of 82 × 82 mm with 122 parts on 125 nets, routed with 1,637 tracks and 148 vias.
It is built around the ATMEGA128L-8AN, SN74LVC1G125DBVR-TP and MAX3483ESA+T, with the THN 30-2415WI, DS18B20Z+ and 71V124SA12YGI among its other parts. Its parts include 38 resistors, 32 capacitors, 14 connectors, 12 ICs and 8 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
11
ATMEGA128L-8AN
TQFP-64(14x14)10bit 128KB 2.7V~5.5V 4KB 53 8MHz AVR FLASH TQFP-64(14x14) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
SN74LVC1G125DBVR-TP
SOT-23-5-40℃~+125℃ 1 1.65V~5.5V 2.6ns@5.0V,50pF 24mA 24mA 2uA 74LVC Tri-State Unidirectional SOT-23-5 Buffers, Drivers, Receivers, Transceivers ROHSTECH PUBLICBuffers, Drivers, Receivers, Transceivers
MAX3483ESA+T
SO-8-40℃~+85℃ 1 1 250Kbps 2mA 3V~3.6V Half-Duplex Transceiver ±15kV SO-8 RS-485 / RS-422 ICs ROHSMaxim Integrated (Analog Devices)RS-485 / RS-422 ICsTHN 30-2415WI
DIP,25.4x25.4mm-40℃~+80℃ 1 1.25A 1.6kV 10mA 24V 30W 330kHz 375uF 75mVp-p 90% 9V~36V Regulated type DIP,25.4x25.4mm Isolated Power Modules ROHSTRACO POWERIsolated Power ModulesDS18B20Z+
SOIC-8-55℃~+125℃ 12bit 1uA 3V~5.5V 750ms Single bus Temperature threshold monitoring、Configurable temperature output、On-chip non-volatile parameter storage ±0.5℃ SOIC-8 Temperature Sensors ROHSMaxim Integrated (Analog Devices)Temperature Sensors
71V124SA12YGI
SOJ-32-40℃~+85℃ 1Mbit 3V~3.6V SOJ-32 SRAM ROHSRenesas ElectronicsSRAM
CD74AC153M96
SOP-16-55℃~+125℃ 1.5V~5.5V 20ns@5V,50pF 24mA 24mA 74AC 8uA Single Supply SOP-16 Signal Switches, Multiplexers, Decoders ROHSTexas InstrumentsSignal Switches, Multiplexers, Decoders
SN74AHC573N
PDIP-20-40℃~+85℃ 1ns 2V~5.5V 74AHC 8mA 8mA D Latch Tri-State PDIP-20 Latches ROHSTexas InstrumentsLatches
PMBF170
SOT-23-65℃~+150℃ 1 N-channel 10pF 2V 300mA 30pF 40pF 5.3Ω@4.5V 60V 830mW N-Channel SOT-23 MOSFETs ROHSNexperiaMOSFETs
STTH102A
SMA(DO-214AC)12ns 1A 1uA@200V 200V 40A 970mV@1A SMA(DO-214AC) Fast Recovery / High Efficiency Diodes ROHSSTMicroelectronicsFast Recovery / High Efficiency Diodes
IRLL024NPBF
SOT-223-41 N-channel 140pF 2.1W 2V 4.4A 510pF 55V 58pF SOT-223-4 MOSFETs ROHSInfineon TechnologiesMOSFETs
Parts
122| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 10u10V | Capacitors_SMD:C_1210 | C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27, C28, C32, C33 |
| 12 | 0 | Resistors_SMD:R_1206 | R3, R4, R9, R11, R14, R15, R18, R19, R41, R42, R43, R54 |
| 8 | 10u | SCUBE:L_1008 | L1, L2, L3, L4, L5, L6, L7, L8 |
| 7 | 100n | Capacitors_SMD:C_0805 | C1, C2, C3, C4, C11, C34, C35 |
| 6 | 10k | Resistors_SMD:R_0805 | R1, R5, R23, R25, R26, R38 |
| 6 | 56k | Resistors_SMD:R_0805 | R28, R29, R30, R31, R32, R33 |
| 6 | CONN_02X12 | SCUBE:FTSH-112-04-L-D-RA-3x12 | P1, P5, P6, P7, P12, P13 |
| 5 | 10u50V | Capacitors_SMD:C_1210 | C29, C30, C31, C38, C39 |
| 4 | 120 | Resistors_SMD:R_0805 | R8, R13, R16, R17 |
| 4 | M6 | SCUBE:M6_PTH | P8, P9, P10, P11 |
| 3 | 12V | Diodes_SMD:SMA_Standard | D4, D5, D6 |
| 3 | 18k | Resistors_SMD:R_0805 | R20, R22, R24 |
| 3 | 40V | Diodes_SMD:SMA_Standard | D3, D9, D10 |
| 3 | Fiducial_1mm_Dia_2.54mm_Outer_CopperTop | SCUBE:Fiducial_1mm_Dia_2.54mm_Outer_CopperTop-paste | REF1, REF2, REF3 |
| 3 | PMBF170 | TO_SOT_Packages_SMD:SOT-23 | Q2, Q3, Q4 |
| 3 | SN74LVC1G125DBVR | TO_SOT_Packages_SMD:SOT-23-5 | U5, U6, U7 |
| 2 | 100n | Capacitors_SMD:C_1210 | C7, C8 |
| 2 | 150k | Resistors_SMD:R_0805 | R21, R37 |
| 2 | 22p | Capacitors_SMD:C_0805 | C5, C6 |
| 2 | 360 | Resistors_SMD:R_0805 | R34, R35 |
| 2 | STTH102A | Diodes_SMD:SMA_Standard | D2, D8 |
| 1 | 14.7456 MHz | Crystals:Crystal_HC49-SD_SMD | Y1 |
| 1 | 1M | Resistors_SMD:R_0805 | R6 |
| 1 | 22k | Resistors_SMD:R_0805 | R27 |
| 1 | 4k7 | Resistors_SMD:R_0805 | R36 |
| 1 | 502774-0891 | SCUBE:Molex_502774-0891 | CON1 |
| 1 | 71V124SA12YGI | SMD_Packages:SOJ-32 | U3 |
| 1 | ATMEGA128L-8AN | Housings_QFP:TQFP-64_14x14mm_Pitch0.8mm | IC1 |
| 1 | CD74AC153M96 | Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm | U1 |
| 1 | CONN_02X12 | SCUBE:LPPB122NFSP-RC | P4 |
| 1 | DS18B20Z+ | SMD_Packages:SOIC-8-N | U4 |
| 1 | FUSE_BYPASS | SCUBE:solder_bridge_1mm | P14 |
| 1 | IRLL024NPBF | TO_SOT_Packages_SMD:SOT-223 | Q1 |
| 1 | ISP | Pin_Headers:Pin_Header_Straight_2x03 | P2 |
| 1 | LOGO | HERE:logo | G*** |
| 1 | MAX3483ESA+ | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U11 |
| 1 | Polyfuse_Small | Fuse_Holders_and_Fuses:Fuse_SMD2920 | F1 |
| 1 | SN74AHC573 | SCUBE:SO-20 | U2 |
| 1 | THN_30-2415WI | SCUBE:THN_30-2415 | U10 |
| 1 | TMR 6-2421WI | SCUBE:TMR_6-2421WI | U9 |
| 1 | TSR 1-2433 | SCUBE:TSR_1 | U12 |
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Questions
How big is the Cpu4 PCB?
It measures 82 × 82 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Cpu4 use?
122 parts, built around the ATMEGA128L-8AN, SN74LVC1G125DBVR-TP, MAX3483ESA+T and THN 30-2415WI. 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 Cpu4 KiCad files?
From the SpaceScienceSweden/ulv_electronics repository on GitHub, at the commit this page was made from: the board is cpu4/cpu4.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cpu4 design in my own project?
Its repository states no licence, so its author keeps all rights: ask SpaceScienceSweden before reusing the design.