2 layers185.4 × 73.7 mm
FullInterlockingPlantCANPower
RobertPHeller/RPi-RRCircuits
A collection of circuit designs for various MCUs, not just Raspberry Pis relating to Model Railroading
155 parts24
2 layers156.2 × 168.9 mm
LPC176x MultiFunction
RobertPHeller/RPi-RRCircuits24A collection of circuit designs for various MCUs, not just Raspberry Pis relating to Model Railroading
- Size
- 156.2 × 168.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 236
- Nets
- 350
- Pads
- 1,155
- Tracks, vias
- 2,477, 473
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 18 Dec 2016
- Updated
- 18 Jan 2026
Overview
LPC176x MultiFunction is an open-source printed circuit board by RobertPHeller, from the RobertPHeller/RPi-RRCircuits repository on GitHub. It is a 2-layer board of 156.2 × 168.9 mm with 236 parts on 350 nets, routed with 2,477 tracks and 473 vias.
It is built around the LPC1768FBD100K, TC4428COA and TC4426EOA, with the PCA9685PW, LM2574N-3.3 and 74HCT00D among its other parts. Its parts include 58 resistors, 45 capacitors, 32 diodes, 31 ICs and 18 connectors. It belongs with the ESP32 and NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
9
LPC1768FBD100K
LQFP-100(14x14)-40℃~+85℃ 100MHz 10bit 12bit 2.4V~3.6V 32 Bit 512KB 64KB 70 ARM Cortex-M3 Built-in FLASH LQFP-100(14x14) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)
TC4428COA
SOIC-8-150mil0℃~+70℃ 1.5A 1.5A 19ns 19ns 2 2.4V 4.5V~18V 400uA 800mV MOSFET SOIC-8-150mil Gate Drivers ROHSMicrochip TechnologyGate DriversTC4426EOA
SOIC-8-40℃~+85℃ 1.5A 1.5A 19ns 19ns 2 2.4V 4.5V~18V 800mV MOSFET SOIC-8 Gate Drivers ROHSMicrochip TechnologyGate Drivers
PCA9685PW
TSSOP-28-40℃~+85℃ 100kHz~1MHz 16 2.3V~5.5V 25mA 5.5V Built-in PWM TSSOP-28 LED Drivers ROHSNXP SemiconductorsLED Drivers
LM2574N-3.3
PDIP-8-40℃~+125℃@(TJ) 1 3.3V 40V 500mA 52kHz 7.5mA Buck Buck Built-in Fixed No PDIP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
74HCT00D
SO-14-40℃~+125℃ 100mV、400mV 12ns@4.5V,50pF 2 2V 3.7V、4.4V 4 4.5V~5.5V 40uA 4mA 4mA 74HCT Series 800mV NAND Gate Overvoltage-tolerant input TTL Compatible CMOS SO-14 Logic Gates ROHSNexperiaLogic GatesLM339
SOP-140℃~+70℃ 1.1mA 1.5mV 150ns 2.3nA 2V~32V 32V 57nA DTL、TTL、CMOS Four channels Open Collector SOP-14 Comparators ROHSJSMSEMIComparators74HCT14D
SOP-14-40℃~+125℃ 1 1.9V~2.1V 2uA 34ns@4.5V,50pF 4.4V 4.5V~5.5V 400mV 4mA 4mA 500mV~600mV 6 74HCT Schmitt trigger SOIC-14 Inverters ROHSNexperiaInverters
RJ45
TH-12PTH-12P SMT ROHSJLCPCB AssemblyUncategorised
README
16LEDDriver23017SMD/README.md16LEDDriver23017SMD
This is a SMD variant of 16DriverOutputHAT.
Parts
236| Qty | Value | Footprint | References |
|---|---|---|---|
| 16 | 0 | Resistors_SMD:R_1206 | JP1001, JP1002, JP1003, JP1004, JP1005, JP1006, JP1007, JP1008, JP1101, JP1102, JP1103, JP1104, JP1105, JP1106, JP1107, JP1108 |
| 16 | 1N4148 | Diodes_SMD:D_SOD-123 | D701, D702, D703, D704, D705, D706, D707, D708, D713, D714, D715, D716, D717, D718, D719, D720 |
| 9 | .1 uf | Capacitors_SMD:C_0603 | C301, C501, C502, C601, C602, C901, C906, C1001, C1101 |
| 8 | 1.5K Ohms | Resistors_SMD:R_0603 | R802, R804, R806, R808, R810, R812, R814, R816 |
| 8 | 10 nf | Capacitors_SMD:C_0603 | C902, C903, C904, C905, C907, C908, C909, C910 |
| 8 | 10K Ohms | Resistors_SMD:R_0603 | R901, R902, R903, R904, R905, R906, R907, R908 |
| 8 | 1M Ohms | Resistors_SMD:R_0603 | R705, R706, R707, R708, R717, R718, R719, R720 |
| 8 | 2.2uf 50V | Capacitors_SMD:CP_Elec_4x5.7 | C701, C702, C703, C704, C705, C706, C707, C708 |
| 8 | 2.7K Ohms | Resistors_SMD:R_0603 | R709, R710, R711, R712, R721, R722, R723, R724 |
| 8 | 22K Ohms | Resistors_SMD:R_0603 | R701, R702, R703, R704, R713, R714, R715, R716 |
| 8 | 25K Ohms | Potentiometers:Potentiometer_Trimmer_Bourns_3214J | RV701, RV702, RV703, RV704, RV705, RV706, RV707, RV708 |
| 8 | LED | LEDs:LED_0603 | D709, D710, D711, D712, D721, D722, D723, D724 |
| 8 | R | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R801, R803, R805, R807, R809, R811, R813, R815 |
| 8 | TC4428 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U503, U504, U505, U506, U603, U604, U605, U606 |
| 7 | 100nf | Capacitors_SMD:C_0402 | C202, C205, C207, C209, C210, C214, C216 |
| 5 | 1uf | Capacitors_SMD:C_0603 | C201, C203, C204, C206, C208 |
| 4 | 1.5K Ohms | 48xxP:4816P | RP1001, RP1002, RP1101, RP1102 |
| 4 | 74HCT00 | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U501, U502, U601, U602 |
| 4 | DFLS240-7 | Diodes_SMD:D_PowerDI-123 | D301, D302, D501, D1001 |
| 4 | LM339 | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U701, U702, U703, U704 |
| 4 | Mounting_Hole | Mounting_Holes:MountingHole_3.2mm_M3 | MK101, MK102, MK103, MK104 |
| 4 | TBD62X83A | Housings_SOIC:SOIC-18W_7.5x11.6mm_Pitch1.27mm | U1002, U1003, U1102, U1103 |
| 4 | TC4426 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U801, U802, U803, U804 |
| 3 | Fudicial | Fiducials:Fiducial_classic_Small_SilkscreenTop_Type1 | FD101, FD102, FD103 |
| 2 | 10K | Resistors_SMD:R_0402 | R201, R1101 |
| 2 | 10K Ohms | 48xxP:4814P | RR501, RR601 |
| 2 | 10uf | PolarizedCaps:C_POL_1206 | C213, C215 |
| 2 | 18pf | Capacitors_SMD:C_0402 | C211, C212 |
| 2 | 2.4K | Resistors_SMD:R_0402 | R101, R102 |
| 2 | 270 | Resistors_SMD:R_0402 | R202, R203 |
| 2 | 60 Ohms | Resistors_SMD:R_1206 | R301, R302 |
| 2 | 74HCT14 | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U901, U902 |
| 2 | PCA9685 | Housings_SSOP:TSSOP-28_4.4x9.7mm_Pitch0.65mm | U1001, U1101 |
| 2 | RJ45 | RJ45-8N-S:RJ45_8N-S | J301, J302 |
| 1 | DWSLogoBCU:DWSLogoBCU | ||
| 1 | + 12V - | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_2pol | T1001 |
| 1 | - 15 in + | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_2pol | T301 |
| 1 | - 15 out + | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_2pol | T302 |
| 1 | -SM+ | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_2pol | J501 |
| 1 | 0 | Resistors_SMD:R_0402 | R204 |
| 1 | 15 uf 15V | Capacitors_SMD:CP_Elec_4x5.7 | C302 |
| 1 | 22 uf 100V | Capacitors_SMD:CP_Elec_8x10 | C402 |
| 1 | 220 uf 25V | Capacitors_SMD:CP_Elec_8x10 | C401 |
| 1 | 25Mhz | Crystals:Crystal_SMD_Abracon_ABM8G-4pin_3.2x2.5mm | Y201 |
| 1 | 330 | Resistors_SMD:R_0402 | R401 |
| 1 | 330 uh | SRN1060:SRN1060 | L401 |
| 1 | 47 nf | Capacitors_SMD:C_0603 | C303 |
| 1 | A7 A6 A5 A4 A3 A2 A1 A0 C | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_9pol | P1001 |
| 1 | ACT1 | LEDs:LED_0402 | D201 |
| 1 | ACT2 | LEDs:LED_0402 | D202 |
| 1 | ARM-20-JTAG | Connectors:IDC_Header_Straight_20pins | J201 |
| 1 | B7 B6 B5 B4 B3 B2 B1 B0 C | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_9pol | P1002 |
| 1 | C7 C6 C5 C4 C3 C2 C1 C0 C | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_9pol | P1101 |
| 1 | CMSH1-60 TR13 | Diodes_SMD:D_SMB | D402 |
| 1 | D7 D6 D5 D4 D3 D2 D1 D0 C | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_9pol | P1102 |
| 1 | GND 8 7 6 5 4 3 2 1 | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_9pol | Term901 |
| 1 | GND 8 7 6 5 4 3 2 1 + | Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MPT-2.54mm_10pol | Term801 |
| 1 | LCC | LCC_LOGO:LCC_LOGO_9x9 | G*** |
| 1 | LM2574N-3.3 | SOIC_Wide:SOIC-14_7.4x8.7mm_Pitch1.27mm | U401 |
| 1 | LPC1768FBD100K | QFP50:QFP50P1600X1600X160-100N | IC201 |
| 1 | Motor 1 | ERNI:474817 | J502 |
| 1 | Motor 2 | ERNI:474817 | J503 |
| 1 | Motor 3 | ERNI:474817 | J504 |
| 1 | Motor 4 | ERNI:474817 | J505 |
| 1 | Motor 5 | ERNI:474817 | J601 |
| 1 | Motor 6 | ERNI:474817 | J602 |
| 1 | Motor 7 | ERNI:474817 | J603 |
| 1 | Motor 8 | ERNI:474817 | J604 |
| 1 | OC 1-4 | ERNI:474818 | J701 |
| 1 | OC 5-8 | ERNI:474818 | J702 |
| 1 | Power | LEDs:LED_0402 | D401 |
| 1 | RESET | Buttons_Switches_SMD:SW_SPST_B3U-1000P-B | SW201 |
| 1 | TCAN332DR | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U301 |
| 1 | Termination | Pin_Headers:Pin_Header_Straight_2x02_Pitch2.54mm | JP301 |
The 232 most common of 236 parts.
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Questions
How big is the LPC176x MultiFunction PCB?
It measures 156.2 × 168.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LPC176x MultiFunction use?
236 parts, built around the LPC1768FBD100K, TC4428COA, TC4426EOA and PCA9685PW. 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 LPC176x MultiFunction KiCad files?
From the RobertPHeller/RPi-RRCircuits repository on GitHub, at the commit this page was made from: the board is LPC176x_MultiFunction/LPC176x_MultiFunction.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the LPC176x MultiFunction design in my own project?
Its repository states no licence, so its author keeps all rights: ask RobertPHeller before reusing the design.