HardLabs

NB3 Hindbrain

NoBlackBoxes·LastBlackBox·boxes/fpgas/NB3_hindbrain/NB3_hindbrain.kicad_pcb

NB3 Hindbrain PCB layout, top view — open source FPGA board by NoBlackBoxes

About the NB3 Hindbrain PCB

NB3 Hindbrain is an open source FPGA PCB design by NoBlackBoxes, published on GitHub under the CC-BY-NC-4.0 license. It is a 4-layer board measuring 57 × 22.5 mm, with 145 components from 32 distinct parts.

Its main chip is the ICE40UP5K-SG48I, from the FPGA family. Other key parts include the FT2232HQ-REEL, W25Q32JVSSIQ, MCP3004-I/SL, MCP4812-E/SN and EEPROM_93LC56BT-I-OT. By type, the board carries 54 resistors, 38 capacitors, 21 diodes, 16 transistors, 6 ICs and 3 connectors.

It belongs with the usb & debug tools designs in this gallery.

From the project

A course for brains interested in brains (not tools interested in tools)

PCB design and fabrication for the NB3 hindbrain, an FPGA development board with ADC and DAC

Name|Description|Mfg|Mfg#|Sup|Sup#|Link| :--:|:---------:|:-:|:--:|:-:|:--:|:--:| Micro-USB|Micro yype-B USB 2.0 SMD socket|Amphenol|10103594-0001LF|LCSC|C428495|datasheet EEPROM|2K microwire compatible serial EEPROM|Microchip|93LC56BT-I/OT|LCSC|C190271|datasheet USB-to-Serial|USB HS interface IC to dual UART/FIFO/SPI/JTAG/I2C|FTDI|FT2232HQ|Mouser|895-FT2232HQ|datasheet Ferrite Bead|GHz noise suppression SMD ferrite bead|Murata|BLM18HE152SN1D|LCSC|C82155|datasheet LDO 1.2V|Low dropout voltage…

Main components on the NB3 Hindbrain

FT2232HQ-REELICE40UP5K-SG48IW25Q32JVSSIQMCP3004-I/SLMCP4812-E/SNEEPROM_93LC56BT-I-OT

NB3 Hindbrain bill of materials (BOM)

145 components, 32 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
FT2232HQ-REEL
FT2232HQ
IC1
1
ICE40UP5K-SG48I
FPGA_ICE40UP5K-SG48I
IC2
1
W25Q32JVSSIQ
NOR_Flash_W25Q32JVSSIQ
IC3
1
MCP3004-I/SL
ADC_MCP3004-I-SL
IC4
1
MCP4812-E/SN
MCP4812-E_SN
IC5
1
EEPROM_93LC56BT-I-OT
U1
16
RUM001L02T2CL
Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +8
1
Osc_12MHz_ECS-2520MV-120-BN-TR
Y1
1
MicroUSB_10103594-0001LF
J1
2
Conn_01x20_Pin
J2, J3
1
MF-FSMF035X-2
F1
1
CLMVC-FKA-CLBDGL7LBB79353
RGB1
1
LD1117S12TR
VR1
1
LDO_3v3_LM1117IMPX-3.3
VR2
1
LED (W)
D1
9
LED (B)
D2, D6, D8, D10, D12, D14, D16, D18 +1
9
LED (R)
D3, D7, D9, D11, D13, D15, D17, D19 +1
1
PRTR5V0U2F,115
D4
1
Diode_1N4148WS-7-F
D5
2
FB_BLM18HE152SN1D
FB1, FB2
Show 12 more
QtyPartRefs
24
100nF
C1, C2, C3, C4, C6, C7, C8, C9 +16
6
4.7uF
C5, C13, C18, C22, C25, C29
8
10uF
C14, C15, C21, C23, C30, C32, C36, C39
7
10k
R1, R2, R4, R11, R12, R13, R15
1
2.2k
R3
1
12k (1%)
R5
1
1k
R6
19
330
R7, R8, R9, R18, R19, R30, R31, R34 +11
1
100
R14
16
3M3
R16, R17, R20, R21, R32, R33, R36, R37 +8
4
17k
R22, R24, R26, R28
4
33k
R23, R25, R27, R29

NB3 Hindbrain design files

The KiCad project lives in the NoBlackBoxes/LastBlackBox repository on GitHub; these links point at the commit this page was built from.

NB3 Hindbrain: common questions

What microcontroller does the NB3 Hindbrain use?

The NB3 Hindbrain is built around the ICE40UP5K-SG48I, from the FPGA family.

How big is the NB3 Hindbrain PCB?

The NB3 Hindbrain measures 57 × 22.5 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the NB3 Hindbrain?

145 components, from 32 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the NB3 Hindbrain design files?

From the NoBlackBoxes/LastBlackBox repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the NB3 Hindbrain design in my own project?

It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.

Can I test firmware for the NB3 Hindbrain without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug FPGA firmware against it before you order a PCB.

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