
Spacex sbc
austindriggs/spacex-sbc
Complete PCB architecture and design process for a custom SBC prepared for a technical interview presentation for a PCB Design Engineer at SpaceX before I graduated from WVU.
Microchip Technology
-40℃~+85℃ 3.3V 32 Bit 500MHz ARM Cortex-ASeries Power-on reset (POR)、Watchdog reset、Calendar function、Touch function、True random number generator (TRNG)、Storage encryption、Independent watchdog (IWDG) TFBGA-196 Microcontrollers (MCU/MPU/SOC) ROHS
The ATSAMA5D21C-CU is a microcontroller made by Microchip Technology in a TFBGA-196(11x11) package with 196 pins. -40℃~+85℃ 3.3V 32 Bit 500MHz ARM Cortex-ASeries Power-on reset (POR)、Watchdog reset、Calendar function、Touch function、True random number generator (TRNG)、Storage encryption、Independent watchdog (IWDG) TFBGA-196 Microcontrollers (MCU/MPU/SOC) ROHS.
PCBKit's library has its KiCad symbol (MCU_Microchip_SAMA:ATSAMA5D21, from KiCad's library) and its footprint (Package_BGA:Microchip_TFBGA-196_11x11mm_Layout14x14_P0.75mm_SMD, from KiCad's library), ready for a KiCad board. 3 are in stock at JLCPCB (part C618502). 1 open-source board in 1 repository on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| A1 | PB10 | Input/output |
| A2 | PB8 | Input/output |
| A3 | PB6 | Input/output |
| A4 | PB4 | Input/output |
| A5 | PB1 | Input/output |
| A6 | PB0 | Input/output |
| A7 | DDR_D1 | Input/output |
| A8 | DDR_DQSN0 | Output |
| A9 | DDR_D4 | Input/output |
| A10 | DDR_D6 | Input/output |
| A11 | DDR_A11 | Output |
| A12 | DDR_A3 | Output |
| A13 | DDR_CLK | Output |
| A14 | DDR_WE | Output |
| B1 | PB11 | Input/output |
| B2 | PB12 | Input/output |
| B3 | PB9 | Input/output |
| B4 | PB7 | Input/output |
| B5 | PB3 | Input/output |
| B6 | PB2 | Input/output |
| B7 | DDR_D0 | Input/output |
| B8 | DDR_DQS0 | Output |
| B9 | DDR_D3 | Input/output |
| B10 | DDR_D7 | Input/output |
| B11 | DDR_A12 | Output |
| B12 | DDR_A2 | Output |
| B13 | DDR_CLKN | Output |
| B14 | DDR_A6 | Output |
| C1 | PB13 | Input/output |
| C2 | PB17 | Input/output |
| C3 | PB20 | Input/output |
| C4 | PB19 | Input/output |
| C5 | PB16 | Input/output |
| C6 | VDDIODDR | Power in |
| C7 | GNDIODDR | Power in |
| C8 | DDR_D2 | Input/output |
| C9 | DDR_D5 | Input/output |
| C10 | DDR_A8 | Output |
| C11 | DDR_A1 | Output |
| C12 | DDR_VREF | Power in |
| C13 | DDR_CAS | Output |
| C14 | DDR_RAS | Output |
| D1 | PB21 | Input/output |
| D2 | PB22 | Input/output |
| D3 | PB24 | Input/output |
| D4 | PB18 | Input/output |
| D5 | PB14 | Input/output |
| D6 | PB5 | Input/output |
| D7 | VDDIOP0 | Power in |
| D8 | DDR_DQM0 | Output |
| D9 | DDR_A7 | Output |
| D10 | DDR_A9 | Output |
| D11 | DDR_A4 | Output |
| D12 | GNDIODDR | Passive |
| D13 | DDR_RESET | Output |
| D14 | DDR_A5 | Output |
| E1 | PB23 | Input/output |
| E2 | PB26 | Input/output |
| E3 | PB25 | Input/output |
| E4 | GNDIOP0 | Power in |
| E5 | PB15 | Input/output |
| E6 | PB27 | Input/output |
| E7 | GNDIOP0 | Passive |
| E8 | VDDCORE | Power in |
| E9 | GNDIODDR | Passive |
| E10 | VDDIODDR | Passive |
| E11 | DDR_A0 | Output |
| E12 | VDDIODDR | Passive |
| E13 | DDR_A13 | Output |
| E14 | DDR_CKE | Output |
| F1 | PB28 | Input/output |
| F2 | PB30 | Input/output |
| F3 | PD8 | Input/output |
| F4 | VDDIOP0 | Passive |
| F5 | PD7 | Input/output |
| F6 | PB29 | Input/output |
| F7 | PB31 | Input/output |
| F8 | GNDCORE | Power in |
| F9 | DDR_A10 | Output |
| F10 | DDR_CAL | Input |
| F11 | DDR_CS | Output |
| F12 | GNDIODDR | Passive |
| F13 | DDR_BA0 | Output |
| F14 | DDR_BA2 | Output |
| G1 | PD16 | Input/output |
| G2 | PD17 | Input/output |
| G3 | PD18 | Input/output |
| G4 | PD10 | Input/output |
| G5 | PD9 | Input/output |
| G6 | PD14 | Input/output |
| G7 | GNDCORE | Passive |
| G8 | VDDCORE | Passive |
| G9 | GNDCORE | Passive |
| G10 | VDDIODDR | Passive |
| G11 | GNDIODDR | Passive |
| G12 | VDDIODDR | Passive |
| G13 | DDR_BA1 | Output |
| G14 | DDR_DQM1 | Output |
| H1 | PD11 | Input/output |
| H2 | VDDANA | Passive |
| H3 | PD13 | Input/output |
| H4 | PD19 | Input/output |
| H5 | PD15 | Input/output |
| H6 | PD12 | Input/output |
| H7 | GNDCORE | Passive |
| H8 | VDDCORE | Passive |
| H9 | VDDCORE | Passive |
| H10 | GNDIODDR | Passive |
| H11 | VDDIODDR | Passive |
| H12 | DDR_VREF | Passive |
| H13 | DDR_D8 | Input/output |
| H14 | DDR_D9 | Input/output |
| J1 | PD20 | Input/output |
| J2 | GNDANA | Passive |
| J3 | PD22 | Input/output |
| J4 | GNDCORE | Passive |
| J5 | VDDCORE | Passive |
| J6 | GNDAUDIOPLL | Power in |
| J7 | CLK_AUDIO | Output |
| J8 | PC5 | Input/output |
| J9 | PC8 | Input/output |
| J10 | VDDIODDR | Passive |
| J11 | GNDIODDR | Passive |
| J12 | DDR_D14 | Input/output |
| J13 | DDR_D10 | Input/output |
| J14 | DDR_D11 | Input/output |
| K1 | PD21 | Input/output |
| K2 | PD23 | Input/output |
| K3 | VDDANA | Power in |
| K4 | GNDANA | Power in |
| K5 | PIOBU0 | Input/output |
| K6 | VDDAUDIOPLL | Power in |
| K7 | VDDUTMII | Power in |
| K8 | VDDIOP1 | Power in |
| K9 | GNDIOP1 | Power in |
| K10 | PC3 | Input/output |
| K11 | VDDFUSE | Power in |
| K12 | DDR_D15 | Input/output |
| K13 | DDR_DQSN1 | Output |
| K14 | DDR_DQS1 | Output |
| L1 | XOUT32 | Output |
| L2 | ADVREF | Power in |
| L3 | PIOBU1 | Input/output |
| L4 | JTAGSEL | Input |
| L5 | PIOBU4 | Input/output |
| L6 | GNDDPLL | Power in |
| L7 | VBG | Power in |
| L8 | GNDUTMII | Power in |
| L9 | PA18 | Input/output |
| L10 | PA25 | Input/output |
| L11 | VDDIOP1 | Passive |
| L12 | GNDIOP1 | Passive |
| L13 | DDR_D12 | Input/output |
| L14 | DDR_D13 | Input/output |
| M1 | XIN32 | Input |
| M2 | TST | Input |
| M3 | PIOBU2 | Input/output |
| M4 | VDDBU | Power in |
| M5 | GNDBU | Power in |
| M6 | PIOBU5 | Input/output |
| M7 | VDDUTMIC | Power in |
| M8 | GNDUTMIC | Power in |
| M9 | PA20 | Input/output |
| M10 | PA21 | Input/output |
| M11 | PA28 | Input/output |
| M12 | PA31 | Input/output |
| M13 | PC0 | Input/output |
| M14 | PC7 | Input/output |
| N1 | SHDN | Output |
| N2 | COMPP | Input |
| N3 | RST | Input |
| N4 | PIOBU3 | Input/output |
| N5 | VDDOSC | Power in |
| N6 | GNDOSC | Power in |
| N7 | HHSDPA | Input/output |
| N8 | HHSDPB | Input/output |
| N9 | PA19 | Input/output |
| N10 | PA24 | Input/output |
| N11 | PA29 | Input/output |
| N12 | PA30 | Input/output |
| N13 | PC2 | Input/output |
| N14 | PC6 | Input/output |
| P1 | WKUP | Input |
| P2 | COMPN | Input |
| P3 | VDDPLLA | Power in |
| P4 | GNDPLLA | Power in |
| P5 | XIN | Input |
| P6 | XOUT | Output |
| P7 | HHSDMA | Input/output |
| P8 | HHSDMB | Input/output |
| P9 | PA22 | Input/output |
| P10 | PA23 | Input/output |
| P11 | PA26 | Input/output |
| P12 | PA27 | Input/output |
| P13 | PC1 | Input/output |
| P14 | PC4 | Input/output |

austindriggs/spacex-sbc
Complete PCB architecture and design process for a custom SBC prepared for a technical interview presentation for a PCB Design Engineer at SpaceX before I graduated from WVU.
<iframe src="https://pcbkit.io/embed/parts/microchip/ATSAMA5D21C-CU" title="ATSAMA5D21C-CU in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/microchip/ATSAMA5D21C-CU.jpg" alt="ATSAMA5D21C-CU" width="1200" height="900">[](https://pcbkit.io/parts/microchip/ATSAMA5D21C-CU)Yes. The symbol is MCU_Microchip_SAMA:ATSAMA5D21 and the footprint Package_BGA:Microchip_TFBGA-196_11x11mm_Layout14x14_P0.75mm_SMD, both drawn on this page. PCBKit places them on a board for you when you design with it.
TFBGA-196(11x11), with 196 pins. Its footprint is drawn on this page.
Microchip Technology publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C618502, with 3 in stock; the sellers' links on this page open their listings.
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.