4 layers200 × 50 mm
4 layers200 × 50 mm
Nixie Clock Core
drewsum/Nixie_ClockA nixie clock designed around a PIC16LF1519
- Size
- 200 × 50 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 338
- Nets
- 264
- Pads
- 1,228
- Tracks, vias
- 2,898, 618
- Pours
- 23
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 31 Aug 2018
- Updated
- 24 Feb 2024
Overview
Nixie Clock Core is an open-source printed circuit board by drewsum, from the drewsum/Nixie_Clock repository on GitHub. It is a 4-layer board of 200 × 50 mm with 338 parts on 264 nets, routed with 2,898 tracks and 618 vias.
It is built around the 74VHC541D, MCP9804-E/MC and FT234XD-R, with the LT3757IDD, 74LVC1G97GV and TLV6700DDC among its other parts. Its parts include 114 capacitors, 107 resistors, 36 ICs, 18 diodes and 10 inductors. It belongs with the lEDs and displays boards of this library.
Main components
12
74VHC541D
SOIC-20-300mil-40℃~+125℃ 1 2V~5.5V 5ns@5V,50pF 74VHC 8 80uA Schmitt trigger Tri-State Unidirectional SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers
MCP9804-E/MC
DFN-8-EP(2x3)-40℃~+125℃ 12bit 2.7V~5.5V 250ms I2C、SMBus ±0.25℃ DFN-8-EP(2x3) Temperature Sensors ROHSMicrochip TechnologyTemperature Sensors
FT234XD-R
DFN-12(3x3)-40℃~+85℃ 125uA 2.97V~5.5V 8mA USB 2.0 USB to UART DFN-12(3x3) USB Converters ROHSFTDIUSB ConvertersLT3757IDD
DFN-10(3x3)-40℃~+125℃ 1 100kHz、300kHz、1MHz 2.9V~40V Boost Boost、SEPIC、Flyback、Inverting External DFN-10(3x3) DC-DC Converters ROHSAnalog DevicesDC-DC Converters
74LVC1G97GV
SOT-23-6L-40℃~+125℃ 1 1.65V~5.5V Configurable Multi-Function Gate SOT-23-6L Specialty Logic ROHSMDDSpecialty LogicTLV6700DDC
TSOT-23-6-40℃~+125℃ 1.8V~18V 12mV 13uA 18us、29us 1nA 2 2.2us Open-drain TSOT-23-6 Comparators ROHSTexas InstrumentsComparators
DS1683S+
SOIC-8-40℃~+85℃ 2.5V~5.5V 300uA Built-in I2C Temperature compensation、InsideSRAM/NVRAM、Timestamp function、Alarm function、Power-off retention of registers、Locking and tamper-proof Yes SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksDS3231MZ/V+
SOIC-8-40℃~+85℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、Alarm function、Locking and tamper-proof、Periodic interrupt output SOIC-8 Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksISO7321CD
SOIC-8-40℃~+125℃ 1 1 25Mbps 3000 33ns 3V~5.5V 3V~5.5V 65kV/us Fail-safe output、Output status configurable High Level、Low Level SOIC-8 Digital Isolators ROHSTexas InstrumentsDigital Isolators
SMD1200PL-TP
SOD-123FL1 Independent 1A 200V 30A 500uA@200V 950mV@1A SOD-123FL Schottky Diodes ROHSMicro Commercial ComponentsSchottky Diodes
BSS214NW-TP
SOT-323MOSFETsTECH PUBLIC
BAT48JFILM
SOD-32325uA@40V 350mA 40V 900mV@500mA Independent SOD-323 Schottky Diodes ROHSSTMicroelectronicsSchottky Diodes
README
README.mdNixie_Clock
Rev B Hardware designed with KiCad 7.0.1
Rev B MCU Firmware written with MPLAB X IDE v6.15, compiled with Microchip XC32 2.30 Compiler - NOT COMPATIBLE with newer compiler versions (4.30)
Rev A Readme:
A nixie clock designed around a PIC16LF1519
Programming notes: PIC16LF1519 (U501) is programmed through PICKIT3 interface header (J501). Firmware included in GIT repository should already be built and the hex file can be programmed directly into the flash on the PIC. If you wish to build it yourself, use Microchip's XC8 compiler, and ensure that the User ID bytes located in NVM match the expected_user_ID[] byte array saved in RAM. The values programmed into NVM are set in /mcc_generated_files/mcc.c, and are set with the line #pragma config IDLOCx = _ . Reference page 44 of the PIC16LF1519 datasheet. If you don't feel like altering user ID's, leave them unchanged in source code, and just build it as is. If user IDs and device IDs do not match, the clock will brick itself until reprogrammed with matching values.
Parts
338| Qty | Value | Footprint | References |
|---|---|---|---|
| 66 | 0.1uF | Capacitors_SMD:C_0603 | C1101, C1102, C1103, C1201, C1203, C1204, C1205, C1301, C1302, C1303, C1305, C1306, C1307, C1310, C1312, C1404 +50 |
| 33 | 10k | Resistors_SMD:R_0603 | R203, R204, R207, R1001, R1002, R1101, R1102, R1105, R1106, R1203, R1305, R1501, R1601, R1602, R1605, R1606 +17 |
| 18 | 10uF | Capacitors_SMD:C_0603 | C405, C903, C904, C907, C908, C911, C912, C1104, C1105, C1202, C1304, C1311, C1313, C1401, C1402, C1403 +2 |
| 16 | 1k | Resistors_SMD:R_0603 | R704, R706, R707, R708, R805, R1301, R1310, R1502, R1503, R1504, R1505, R1506, R1603, R1604, R1607, R1608 |
| 13 | 10uF | Capacitors_SMD:C_1206 | C201, C202, C205, C206, C401, C403, C407, C408, C601, C602, C603, C606, C1903 |
| 12 | 10 | Resistors_SMD:R_0603 | R205, R208, R405, R407, R801, R803, R1103, R1104, R2103, R2106, R2109, R2110 |
| 12 | 74LVC1G97 | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U1101, U1303, U1501, U1502, U1503, U1504, U1505, U1601, U1602, U1603, U1604, U2102 |
| 8 | 10K | Resistors_SMD:R_0603 | R1701, R1702, R1703, R1801, R1802, R1803, R1805, R1806 |
| 8 | 600R 0.5A | Inductors_SMD:L_0603 | L801, L802, L901, L902, L1101, L1102, L1301, L1302 |
| 8 | MountingHole | MountingHole:MountingHole_3mm | H2001, H2002, H2003, H2004, H2005, H2006, H2007, H2008 |
| 8 | TP | Custom Footprints Library:Test_Point | TP202, TP203, TP401, TP601, TP602, TP1101, TP1201, TP1301 |
| 6 | Green | LEDs:LED_0603 | D1302, D1501, D1502, D1504, D1505, D1601 |
| 5 | 100k | Resistors_SMD:R_0603 | R607, R1306, R1307, R1311, R1312 |
| 5 | 10k | Resistors_SMD:R_Array_Convex_8x0602 | RN1701, RN1702, RN1703, RN1801, RN1802 |
| 4 | 4.7uF | Capacitors_SMD:C_0805 | C402, C608, C1803, C1805 |
| 4 | 74VHC541 | Package_DFN_QFN:WQFN-20-1EP_2.5x4.5mm_P0.5mm_EP1x2.9mm | U1701, U1702, U1703, U1802 |
| 4 | MCP9804 | Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm | U302, U502, U702, U2103 |
| 4 | Red | LEDs:LED_0603 | D1503, D1602, D1603, D1604 |
| 4 | SMD1200PL | Diodes_SMD:D_SOD-123F | D601, D602, D603, D2101 |
| 3 | 0.1uF | Capacitors_SMD:C_1206 | C609, C611, C612 |
| 3 | 1.5uF | Capacitors_SMD:C_2220 | C613, C1901, C1902 |
| 3 | 1.6M | Resistors_SMD:R_0603 | R601, R608, R613 |
| 3 | 10nF | Capacitors_SMD:C_0603 | C203, C404, C607 |
| 3 | 47pF | Capacitors_SMD:C_0603 | C409, C1308, C1309 |
| 3 | BSS214NW | Package_TO_SOT_SMD:SOT-323_SC-70 | Q401, Q801, Q2101 |
| 3 | INA219BxDCN | Package_TO_SOT_SMD:SOT-23-8 | U301, U501, U703 |
| 3 | OPA333xxDCK | Package_TO_SOT_SMD:SOT-353_SC-70-5 | U701, U704, U705 |
| 3 | TLV6700 | Package_TO_SOT_SMD:SOT-23-6 | U601, U603, U1301 |
| 2 | 0.02 | Resistors_SMD:R_0612 | R206, R406 |
| 2 | 100 | Resistors_SMD:R_0603 | R615, R702 |
| 2 | 1M | Resistors_SMD:R_0603 | R408, R1201 |
| 2 | 27 | Resistors_SMD:R_0603 | R1308, R1309 |
| 2 | BAT48JFILM | Diode_SMD:D_SOD-323 | D401, D1401 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | +24V IN | Connectors:BARREL_JACK | J201 |
| 1 | 0 | Resistors_SMD:R_0603 | R401 |
| 1 | 0.36 | Resistors_SMD:R_0805 | R611 |
| 1 | 1.07M | Resistors_SMD:R_0603 | R2101 |
| 1 | 1.33k | Resistors_SMD:R_0603 | R609 |
| 1 | 1.5 | Resistors_SMD:R_0612 | R616 |
| 1 | 1.6k | Resistors_SMD:R_0603 | R211 |
| 1 | 1.78k | Resistors_SMD:R_0603 | R201 |
| 1 | 14k | Resistors_SMD:R_0603 | R604 |
| 1 | 150k | Resistors_SMD:R_0603 | R703 |
| 1 | 18.2k | Resistors_SMD:R_0603 | R403 |
| 1 | 2.2uH | Inductor_SMD:L_Vishay_IHLP-2020 | L401 |
| 1 | 200k | Resistors_SMD:R_0603 | R202 |
| 1 | 220k | Resistors_SMD:R_0603 | R1202 |
| 1 | 28.7k | Resistors_SMD:R_0603 | R614 |
| 1 | 2M | Resistors_SMD:R_0603 | R701 |
| 1 | 3.4k | Resistors_SMD:R_0603 | R603 |
| 1 | 309k | Resistors_SMD:R_0603 | R409 |
| 1 | 330 | Resistors_SMD:R_0603 | R602 |
| 1 | 40.2k | Resistors_SMD:R_0603 | R1304 |
| 1 | 47uF | Capacitor_Tantalum_SMD:CP_EIA-7343-43_Kemet-X | C207 |
| 1 | 487k | Resistors_SMD:R_0603 | R1302 |
| 1 | 6.04k | Resistors_SMD:R_0603 | R1303 |
| 1 | 6.49k | Resistors_SMD:R_0603 | R610 |
| 1 | 680uH | Custom Footprints:Wurth_7447709681 | L601 |
| 1 | 75k | Resistors_SMD:R_0603 | R705 |
| 1 | ASE-8.000MHz | Oscillator:Oscillator_SMD_Abracon_ASE-4Pin_3.2x2.5mm | X1101 |
| 1 | BSS192PH6327FTSA1 | Package_TO_SOT_SMD:SOT-89-3 | Q701 |
| 1 | BZX58550-C5V1X | Diodes_SMD:D_SOD-523 | D701 |
| 1 | CR1616_Holder | Custom Footprints Library:BAT_BU1632SM-JJ-GTR | BT1202 |
| 1 | CST-931RP-A | Buzzer_Beeper:MagneticBuzzer_CUI_CST-931RP-A | BZ2101 |
| 1 | Conn_02x32_Top_Bottom | Custom Footprints Library:CONN_5120527-1_TYC | J1901 |
| 1 | DS1683 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U1401 |
| 1 | DS3231MZ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1201 |
| 1 | ECS-327KE | Custom Footprints Library:ECS-327KE | X1102 |
| 1 | FT234XD | Housings_DFN_QFN:DFN-12-1EP_3x3mm_Pitch0.45mm | U1302 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2101 |
| 1 | IRFL214 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | Q601 |
| 1 | ISO7321C | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1304 |
| 1 | LT3757 | Housings_DFN_QFN:DFN-10-1EP_3x3mm_Pitch0.5mm | U602 |
| 1 | LT8609A-DD | Housings_DFN_QFN:DFN-10-1EP_3x3mm_Pitch0.5mm | U401 |
| 1 | LTC6900 | Package_TO_SOT_SMD:SOT-23-5 | U2101 |
| 1 | MRST | Button_Switch_THT:SW_PUSH_6mm | SW801 |
| 1 | Microchip_Logo | Custom Footprints Library:Microchip_Logo | G*** |
| 1 | Owl_1_Logo | Custom Footprints Library:Owl_1_Logo | G*** |
| 1 | PESD3V3L5UY | Package_TO_SOT_SMD:SOT-363_SC-70-6 | D801 |
The 323 most common of 338 parts.
Questions
How big is the Nixie Clock Core PCB?
It measures 200 × 50 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Nixie Clock Core use?
338 parts, built around the 74VHC541D, MCP9804-E/MC, FT234XD-R and LT3757IDD. 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 Nixie Clock Core KiCad files?
From the drewsum/Nixie_Clock repository on GitHub, at the commit this page was made from: the board is rev_b/hdw/Nixie_Clock_Core/Nixie_Clock_Core.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nixie Clock Core design in my own project?
Its repository states no licence, so its author keeps all rights: ask drewsum before reusing the design.
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