4 layers200 × 50 mm
4 layers200 × 50 mm
Nixie Clock
drewsum/Nixie_ClockA nixie clock designed around a PIC16LF1519
- Size
- 200 × 50 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 286
- Nets
- 207
- Pads
- 783
- Tracks, vias
- 1,671, 225
- Pours
- 13
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 31 Aug 2018
- Updated
- 24 Feb 2024
Overview
Nixie Clock 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 286 parts on 207 nets, routed with 1,671 tracks and 225 vias.
It is built around the 74LVC2G17GW, LT3757IDD and MAX6816EUS, with the 74HC238D, 74HC4514D and 74LVC1G11GW among its other parts. Its parts include 130 resistors, 58 capacitors, 31 transistors, 12 diodes and 11 ICs. It belongs with the lEDs and displays boards of this library.
Main components
12
74LVC2G17GW
SOT-363-40℃~+125℃ 1 1.65V~5.5V 10uA 2 24mA 24mA 5.4ns@3.3V,50pF 74LVC Schmitt trigger Unidirectional SOT-363 Buffers, Drivers, Receivers, Transceivers ROHSTECH PUBLICBuffers, Drivers, Receivers, TransceiversLT3757IDD
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
MAX6816EUS
SOT143±15kV ESD-Protected, Single CMOS Switch DebouncersMaxim Integrated (Analog Devices)Uncategorised
74HC238D
SOP-16SOP-16 Signal Switches, Multiplexers, Decoders ROHSMDDSignal Switches, Multiplexers, Decoders
74HC4514D
SO-24-300mil-40℃~+125℃ 22ns@6V,50pF 2V~6V 5.2mA 5.2mA 74HC 8uA Decoder Single Supply SO-24-300mil Signal Switches, Multiplexers, Decoders ROHSNexperiaSignal Switches, Multiplexers, Decoders74LVC1G11GW
SC-88-40℃~+125℃ 1 1.2V~1.54V、1.9V~2.15V、2.2V~2.5V、2.3V~2.62V、3.8V~4.11V 1.65V~5.5V 1.7V~2V 3 3.5ns@5V,50pF 300mV~450mV、450mV~700mV、550mV~800mV 32mA 32mA 4uA 74LVC Series AND Gate SC-88 Logic Gates ROHSNexperiaLogic Gates
ECS-327KE-TR
SMD3225-4P-40℃~+85℃ 1.5V~5.5V 1.5uA 32.768kHz CMOS SMD3225-4P Crystal Oscillators ROHSECSCrystal Oscillators
MMSTA42
SOT-323-55℃~+150℃ 1 NPN 100mA 200mW 25 300V 500mV 500pA 50MHz 5V NPN SOT-323 Bipolar (BJT) ROHSYangzhou Yangjie Electronic TechnologyBipolar (BJT)
SMD1200PL-TP
SOD-123FL1 Independent 1A 200V 30A 500uA@200V 950mV@1A SOD-123FL Schottky Diodes ROHSMicro Commercial ComponentsSchottky DiodesMMSTA92
SOT-323Bipolar (BJT)YONGYUTAIDMG1012UW
SOT-323MOSFETsGOODWORK
BKP1005HS121-T
04021 120Ω@100MHz 140mΩ 1A ±25% 0402 Ferrite Beads ROHSTaiyo YudenFerrite Beads
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
286| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | 10k | Resistors_SMD:R_0402 | R1005, R1006, R1013, R1014, R1021, R1022, R1103, R1106, R1201, R1205, R1206, R1212, R1213, R1216, R1301, R1303 +16 |
| 25 | 100 | Resistors_SMD:R_0402 | R204, R208, R302, R402, R413, R602, R603, R604, R1101, R1104, R1202, R1207, R1302, R1304, R1306, R1504 +9 |
| 19 | MMSTA42 | TO_SOT_Packages_SMD:SOT-323_SC-70 | Q901, Q902, Q903, Q904, Q905, Q906, Q907, Q908, Q1003, Q1004, Q1007, Q1008, Q1011, Q1012, Q1101, Q1102 +3 |
| 14 | 0.1uF | Capacitors_SMD:C_0402 | C201, C406, C409, C501, C601, C801, C901, C1101, C1201, C1204, C1301, C1304, C1307, C1401 |
| 13 | 100k | Resistors_SMD:R_0402 | R201, R1001, R1002, R1009, R1010, R1017, R1018, R1102, R1105, R1203, R1208, R1209, R1214 |
| 13 | 10nF | Capacitors_SMD:C_0402 | C202, C410, C502, C602, C802, C902, C1102, C1202, C1205, C1302, C1305, C1308, C1402 |
| 13 | 1nF | Capacitors_SMD:C_0402 | C203, C411, C503, C603, C803, C903, C1103, C1203, C1206, C1303, C1306, C1309, C1403 |
| 10 | 20k | Resistors_SMD:R_0402 | R901, R902, R906, R907, R909, R910, R911, R912, R913, R914 |
| 9 | LOGO | w_logo:Logo_silk_high_voltage_10x8.5mm | G***, G***, G***, G***, G***, G***, G***, G***, G*** |
| 8 | 1M | Resistors_SMD:R_0402 | R202, R207, R301, R304, R409, R502, R706, R707 |
| 7 | SMD1200PL | Diodes_SMD:D_SOD-123F | D201, D202, D401, D402, D403, D1204, D1205 |
| 6 | 22k | Resistors_SMD:R_0805 | R1007, R1008, R1015, R1016, R1023, R1024 |
| 6 | 470k | Resistors_SMD:R_0402 | R1003, R1004, R1011, R1012, R1019, R1020 |
| 6 | MMSTA92 | TO_SOT_Packages_SMD:SOT-323_SC-70 | Q1001, Q1002, Q1005, Q1006, Q1009, Q1010 |
| 4 | 10 | Resistors_SMD:R_0402 | R1204, R1210, R1211, R1215 |
| 4 | DMG1012UW | TO_SOT_Packages_SMD:SOT-323_SC-70 | Q1201, Q1202, Q1203, Q1204 |
| 4 | MAX6816 | TO_SOT_Packages_SMD:SOT-143 | U1201, U1301, U1302, U1303 |
| 3 | 0.1uF | Capacitors_SMD:C_0805 | C401, C402, C404 |
| 3 | 3.3V | Diodes_SMD:D_SOD-323 | D203, D1206, D1501 |
| 2 | 1.21M | Resistors_SMD:R_0402 | R703, R711 |
| 2 | 1.3M | Resistors_SMD:R_0402 | R203, R305 |
| 2 | 12pF | Capacitors_SMD:C_0402 | C504, C505 |
| 2 | 15F | Custom Footprints:MAL219691214E3 | C704, C705 |
| 2 | 200k | Resistors_SMD:R_0805 | R1502, R1503 |
| 1 | 0 | Resistors_SMD:R_0402 | R705 |
| 1 | 0.16 | Resistors_SMD:R_0805 | R404 |
| 1 | 0.47uF | Capacitors_SMD:C_0402 | C301 |
| 1 | 1.5M | Resistors_SMD:R_0603 | R405 |
| 1 | 1.6M | Resistors_SMD:R_0402 | R410 |
| 1 | 1.96M | Resistors_SMD:R_0402 | R701 |
| 1 | 100uF | Capacitors_Tantalum_SMD:CP_Tantalum_Case-B_EIA-3528-21_Reflow | C701 |
| 1 | 10uF | Capacitors_SMD:C_1206 | C405 |
| 1 | 10uH | Custom Footprints:IHLP-2525CZ-01 | L301 |
| 1 | 115k | Resistors_SMD:R_0402 | R306 |
| 1 | 12Hr | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | JP1201 |
| 1 | 14k | Resistors_SMD:R_0402 | R406 |
| 1 | 15pF | Capacitors_SMD:C_0402 | C304 |
| 1 | 2.2M | Resistors_SMD:R_0402 | R303 |
| 1 | 2.2uF | Capacitors_SMD:C_0402 | C702 |
| 1 | 2.2uF | Capacitors_SMD:C_2220 | C403 |
| 1 | 2.2uF | Capacitors_SMD:C_1206 | C703 |
| 1 | 20MHz | Custom Footprints:CX5032GB20000H0PESZZ | Y501 |
| 1 | 22k | Resistors_SMD:R_0402 | R408 |
| 1 | 22uF | Capacitors_SMD:C_0805 | C303 |
| 1 | 25.5k | Resistors_SMD:R_0402 | R206 |
| 1 | 255k | Resistors_SMD:R_0402 | R702 |
| 1 | 27k | Resistors_SMD:R_0603 | R407 |
| 1 | 27k | Resistors_SMD:R_2512 | R401 |
| 1 | 3.3k | Resistors_SMD:R_0402 | R412 |
| 1 | 3.83M | Resistors_SMD:R_0402 | R709 |
| 1 | 330 | Resistors_SMD:R_0402 | R411 |
| 1 | 33k | Resistors_SMD:R_0402 | R905 |
| 1 | 3A | Resistors_SMD:R_1206 | F201 |
| 1 | 4.64k | Resistors_SMD:R_0402 | R205 |
| 1 | 4.7uF | Capacitors_SMD:C_1206 | C302 |
| 1 | 4.7uF | Capacitors_SMD:C_0805 | C407 |
| 1 | 536k | Resistors_SMD:R_0402 | R713 |
| 1 | 6.8nF | Capacitors_SMD:C_0402 | C408 |
| 1 | 680uH | Custom Footprints:Wurth_7447709681 | L401 |
| 1 | 74AUC1G17 | TO_SOT_Packages_SMD:SOT-23-5 | U901 |
| 1 | 74HC238 | Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm | U801 |
| 1 | 74HC4514 | Housings_SOIC:SOIC-24W_7.5x15.4mm_Pitch1.27mm | U601 |
| 1 | 74LVC1G11 | TO_SOT_Packages_SMD:SOT-363_SC-70-6 | U1202 |
| 1 | 74LVC2G17 | TO_SOT_Packages_SMD:SOT-23-6 | U1101 |
| 1 | 80.6k | Resistors_SMD:R_0402 | R704 |
| 1 | Anodes | Socket_Strips:Socket_Strip_Straight_1x06_Pitch2.54mm | J1502 |
| 1 | Aux | Socket_Strips:Socket_Strip_Straight_1x06_Pitch2.54mm | J1503 |
| 1 | BKP1005HS121-T | Resistors_SMD:R_0402 | L1401 |
| 1 | Cathodes | Socket_Strips:Socket_Strip_Straight_1x11_Pitch2.54mm | J1501 |
| 1 | DMP3099L | TO_SOT_Packages_SMD:SOT-23 | Q701 |
| 1 | DTM_Logo_Small | Custom Footprints:DTM_Logo_Small_Flipped | DTM_Logo_Small |
| 1 | Display | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J1201 |
| 1 | ECS-327KE | Custom Footprints:ECS-327KE | U1401 |
| 1 | Enable | LEDs:LED_0603 | D1207 |
| 1 | Error | LEDs:LED_0603 | D1202 |
| 1 | ForceConnSense | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | JP1501 |
| 1 | Hours | Pin_Headers:Pin_Header_Straight_1x02_Pitch2.54mm | J1303 |
| 1 | IRFL214 | Custom Footprints:SOT-223_3 | Q401 |
| 1 | LOGO | w_logo:Logo_silk_polarity_center_5x1.4mm | G*** |
| 1 | LT3757 | Housings_DFN_QFN:DFN-10-1EP_3x3mm_Pitch0.5mm | U401 |
The 265 most common of 286 parts.
Questions
How big is the Nixie Clock PCB?
It measures 200 × 50 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Nixie Clock use?
286 parts, built around the 74LVC2G17GW, LT3757IDD, MAX6816EUS and 74HC238D. 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 KiCad files?
From the drewsum/Nixie_Clock repository on GitHub, at the commit this page was made from: the board is rev_a/Nixie Clock/Nixie Clock Poster/Nixie Clock.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nixie Clock 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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