2 layers20 × 24 mm
Can lin bridge
ryanhaus/sandbox
Sandbox area for small tests and projects that don't constitute a full repo
24 parts
8 layers136.9 × 155.9 mm
RA8M1
pickplace-de/hexagon- Size
- 136.9 × 155.9 mm
- Copper layers
- 8
- Thickness
- 1.6 mm
- Parts
- 243
- Nets
- 319
- Pads
- 1,003
- Tracks, vias
- 5,370, 489
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 14 Mar 2025
- Updated
- 26 May 2025
Overview
RA8M1 is an open-source printed circuit board by pickplace-de, from the pickplace-de/hexagon repository on GitHub. It is an 8-layer board of 136.9 × 155.9 mm with 243 parts on 319 nets, routed with 5,370 tracks and 489 vias.
It is built around the R7FA8M1AHECBD#UC0, SN65HVD72DRBR and TJA1042TK/3/2Z, with the TPS62933ODRL, KSZ8851SNL-TR and S70FL01GSAGBHBC10 among its other parts. Its parts include 97 capacitors, 83 resistors, 12 diodes, 11 ICs and 8 connectors.
Main components
12
R7FA8M1AHECBD#UC0
FBGA-224-40℃~+125℃ 1.68V~3.6V 12bit 12bit 174 1MB 2MB 32 Bit 480MHz ARM Cortex-M85 Built-in+External FLASH FBGA-224 Microcontrollers (MCU/MPU/SOC) ROHSRenesas ElectronicsMicrocontrollers (MCU/MPU/SOC)
SN65HVD72DRBR
SON-8(3x3)-40℃~+125℃ 1 1 213 250Kbps 3V~3.6V 950uA Half-Duplex Transceiver ±8kV SON-8(3x3) RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485 / RS-422 ICs
TJA1042TK/3/2Z
HVSON-8(3x3)CAN TransceiversNXP Semiconductors
TPS62933ODRL
SOT-583-40℃~+150℃@(TJ) 1 2.2MHz 3.8V~30V 3A 45uA 800mV~22V Adjustable Buck Built-in Light load efficient mode、Adjustable soft-start、Operating status indication、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes SOT-583 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
KSZ8851SNL-TR
QFN-32(5x5)0℃~+70℃ 1.8V、2.5V、3.3V Interrupt generation SPI QFN-32(5x5) Interface - Specialized ROHSMicrochip TechnologyInterface - Specialized
S70FL01GSAGBHBC10
BGA-24(8x6)100,000 cycles 133MHz 1Gbit 2.7V~3.6V 20 Years 200uA Power-on reset、Hardware Write Protection、Software Write Protection、Absolute Write Protection SPI TBGA-24 NOR FLASH ROHSInfineon TechnologiesNOR FLASH
TLV320AIC3204IRHBR
QFN-32-EP(5x5)-40℃~+85℃ 1.1V~3.6V、1.26V~1.95V、1.5V~1.95V 8kHz~192kHz Encoder/decoder I2C、SPI QFN-32-EP(5x5) Audio Interface ICs ROHSTexas InstrumentsAudio Interface ICsAT93C46EN-SH-T
SOIC-8-40℃~+85℃ 1,000,000 cycles 1.8V~5.5V 100 Years 1Kbit 2MHz 5ms Built-in power-on reset (POR)、Built-in write enable latch (WEL) SPI SOIC-8 EEPROM ROHSMicrochip TechnologyEEPROM
IS42S32200L-6TL
TSOP-86-10.2mm0℃~+70℃ 166MHz 3V~3.6V 64Mbit High-speed clock synchronization、Auto precharge、Automatic column address generation、Auto refresh TSOP-86-10.2mm SDRAM ROHSISSISDRAM
04023A180CAT2A
040218pF 25V C0G 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSKyocera AVXMultilayer Ceramic Capacitors MLCC - SMD/SMT
1N4148W-7-F-CN
SOD-123SOD-123 Switching Diodes ROHSChipNoboSwitching Diodes
SS34
SMA(DO-214AC)-55℃~+125℃ 3A 40V 500uA@40V 550mV@3A Independent SMA(DO-214AC) Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdHEXAGON
HEXAGON is an open hardwrae development board built around 480 MHz Renesas MCU (Arm® Cortex®-M85 core with HeliumTM).
The board was designed as there was nothing similar meeting our demands at the moment.
Along with Cortex®-M85 in BGA package the hardware design also includes:
✔ 8 MB SDRAM
✔ 32 MB QSPI
✔ Stereo Audio Codec (for voice recognition applications development) with 3.5mm jack connector for headphones and microphone
✔ USB interface with USB-C connector (MCU USB and/or power)
✔ Ethernet interface with RJ45
✔ CAN interface with D-SUB connector
✔ RS485 interface with D-SUB connector
✔ Flexible power supply (from 5 to 30VDC) with barrel jack connector and an option to power the board from USB
✔ Reset button and power supply LEDs
✔ 2 user buttons and 3 user LEDs
Hardware
The board design contains 8 layers including 4 signal layers, 3 ground planes and 1 power plane.
Some components (MCU, QSPI) are in BGA packages and may be hard to assembly manually.
License
This project is licensed under CERN-OHL-W-2.0, which allows modification and commercial use with attribution.
See the for full details.
Parts
243| Qty | Value | Footprint | References |
|---|---|---|---|
| 45 | 100nF | Capacitor_SMD:C_0402_1005Metric | C12, C13, C15, C18, C19, C20, C21, C22, C23, C24, C25, C27, C28, C29, C30, C31 +29 |
| 13 | 10uF | Capacitor_SMD:C_0402_1005Metric | C11, C14, C26, C44, C50, C51, C52, C53, C86, C87, C90, C93, C96 |
| 12 | 22k | Resistor_SMD:R_0402_1005Metric | R10, R11, R12, R13, R27, R28, R29, R30, R31, R32, R33, R34 |
| 12 | 4k7 | Resistor_SMD:R_0402_1005Metric | R21, R22, R23, R24, R25, R26, R44, R45, R76, R77, R78, R79 |
| 10 | ~ | RA8M1:TestPoint_0.5mm | TP2, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13 |
| 9 | 0R | Resistor_SMD:R_0402_1005Metric | R35, R36, R37, R38, R40, R56, R57, R58, R59 |
| 9 | 10k | Resistor_SMD:R_0402_1005Metric | R1, R19, R20, R46, R51, R54, R73, R83, R84 |
| 7 | 1k | Resistor_SMD:R_0402_1005Metric | R2, R3, R4, R5, R6, R7, R65 |
| 7 | 1uF | Capacitor_SMD:C_0402_1005Metric | C40, C41, C42, C54, C76, C78, C80 |
| 7 | 33R | Resistor_SMD:R_0402_1005Metric | R71, R72, R74, R75, R80, R81, R82 |
| 6 | 220nF | Capacitor_SMD:C_0402_1005Metric | C3, C4, C5, C6, C7, C8 |
| 5 | 150R | Resistor_SMD:R_0402_1005Metric | R14, R15, R16, R17, R18 |
| 5 | 22uF | Capacitor_SMD:C_0805_2012Metric | C10, C60, C61, C67, C68 |
| 4 | 10nF | Capacitor_SMD:C_0402_1005Metric | C89, C92, C95, C98 |
| 4 | 10uF/50V | Capacitor_SMD:C_0805_2012Metric | C57, C58, C64, C65 |
| 4 | 15pF | Capacitor_SMD:C_0402_1005Metric | C1, C2, C82, C83 |
| 4 | 49.9R | Resistor_SMD:R_0402_1005Metric | R67, R68, R69, R70 |
| 3 | 4700pF | Capacitor_SMD:C_0603_1608Metric | C73, C74, C75 |
| 2 | 18pF | Capacitor_SMD:C_0402_1005Metric | C16, C17 |
| 2 | 1N4148W | Diode_SMD:D_SOD-123 | D11, D12 |
| 2 | 2k7 | Resistor_SMD:R_0402_1005Metric | R39, R41 |
| 2 | 330R | Resistor_SMD:R_0402_1005Metric | R63, R64 |
| 2 | 47uF | Capacitor_SMD:C_0805_2012Metric | C46, C47 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R8, R9 |
| 2 | 6.8uH | RA8M1:INDPM4141X310N | L2, L3 |
| 2 | 60.4R | Resistor_SMD:R_0402_1005Metric | R60, R61 |
| 2 | FREQ | Resistor_SMD:R_0402_1005Metric | R50, R53 |
| 2 | FerriteBead | Inductor_SMD:L_0805_2012Metric | FB1, FB2 |
| 2 | G17C0900132EU | RA8M1:G17C0900132EU | J6, J7 |
| 2 | SS34 | Diode_SMD:D_SMA | D7, D8 |
| 2 | TPS62933O | Package_TO_SOT_SMD:SOT-583-8 | U5, U6 |
| 1 | |||
| 1 | 10k - DIS | Resistor_SMD:R_0402_1005Metric | R47 |
| 1 | 10k - EN | Resistor_SMD:R_0402_1005Metric | R42 |
| 1 | 10k - I2C | Resistor_SMD:R_0402_1005Metric | R48 |
| 1 | 10k - SPI | Resistor_SMD:R_0402_1005Metric | R43 |
| 1 | 12.4k | Resistor_SMD:R_0402_1005Metric | R52 |
| 1 | 120R | Resistor_SMD:R_0402_1005Metric | R62 |
| 1 | 1uH | Inductor_SMD:L_0603_1608Metric | L4 |
| 1 | 2.2uF | Capacitor_SMD:C_0402_1005Metric | C71 |
| 1 | 2.2uH | RA8M1:LQM21PHR47NG0D | L1 |
| 1 | 24MHz | RA8M1:830108208209 | Y1 |
| 1 | 25MHz | RA8M1:830108208209 | Y3 |
| 1 | 3.01k | Resistor_SMD:R_0402_1005Metric | R66 |
| 1 | 3.3V | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | 31.6k | Resistor_SMD:R_0402_1005Metric | R49 |
| 1 | 32.768kHz | RA8M1:830050789 | Y2 |
| 1 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C70 |
| 1 | 5V | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | AT93C46EN-SH-T | RA8M1:SOIC127P600X175-8N | U11 |
| 1 | ESDCAN01 | Package_TO_SOT_SMD:TSOT-23 | D9 |
| 1 | FTSH-105-01 | RA8M1:FTSH10501LDV007K | J2 |
| 1 | Header_02x14 | Connector_PinHeader_2.54mm:PinHeader_2x14_P2.54mm_Vertical | J3 |
| 1 | IS42S32200L-6TL | RA8M1:SOP50P1176X120-86N | U2 |
| 1 | KSZ8851SNL-TR | RA8M1:QFN50P500X500X100-33N-D | U9 |
| 1 | LED1 | LED_SMD:LED_0805_2012Metric | D4 |
| 1 | LED2 | LED_SMD:LED_0805_2012Metric | D5 |
| 1 | LED3 | LED_SMD:LED_0805_2012Metric | D6 |
| 1 | LOGO | PP:Logo | G*** |
| 1 | LOL | RA8M1:TestPoint_0.5mm | TP4 |
| 1 | LOR | RA8M1:TestPoint_0.5mm | TP3 |
| 1 | PJ-002AH-SMT-TR | RA8M1:PJ002AHSMTTR | J5 |
| 1 | QSPI_VIO | RA8M1:TestPoint_0.5mm | TP1 |
| 1 | R7FA8M1AHECBD#UC0 | RA8M1:BGA225C80P15X15_1300X1300X147 | U1 |
| 1 | RESET | RA8M1:KMR211NGLFS-1 | S1 |
| 1 | RJ45_Pulse_JXD6-0001NL | Connector_RJ:RJ45_Pulse_JXD6-0001NL_Horizontal | J8 |
| 1 | S70FL01GSAGBHBC10 | RA8M1:BGA24C100P5X5_600X800X120 | U3 |
| 1 | SJ3-35024K-SMT-TR | RA8M1:SJ335024KSMTTR | J4 |
| 1 | SM712_SOT23 | Package_TO_SOT_SMD:SOT-23 | D10 |
| 1 | SN65HVD72DR | RA8M1:SOIC127P600X175-8N | U8 |
| 1 | TJA1042TK/3/2Z | Package_DFN_QFN:DFN-8-1EP_3x3mm_P0.65mm_EP1.55x2.4mm | U7 |
| 1 | TLV320AIC3204IRHBR | RA8M1:QFN50P500X500X100-33N-D | U4 |
| 1 | TPS61240DRVT | RA8M1:SON65P200X200X80-7N | U10 |
| 1 | USB | LED_SMD:LED_0805_2012Metric | D3 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_GCT_USB4110 | J1 |
| 1 | USR1 | RA8M1:KMR211NGLFS-1 | S2 |
| 1 | USR2 | RA8M1:KMR211NGLFS-1 | S3 |
The 238 most common of 243 parts.
Questions
How big is the RA8M1 PCB?
It measures 136.9 × 155.9 mm and has 8 copper layers, 1.6 mm thick.
What parts does the RA8M1 use?
243 parts, built around the R7FA8M1AHECBD#UC0, SN65HVD72DRBR, TJA1042TK/3/2Z and TPS62933ODRL. 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 RA8M1 KiCad files?
From the pickplace-de/hexagon repository on GitHub, at the commit this page was made from: the board is Hardware/Kicad/RA8M1.kicad_pcb and its schematic Hardware/Kicad/Audio.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the RA8M1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask pickplace-de before reusing the design.
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