

Production test jig for Cynthion
- Size
- 90.9 × 100 mm
- Copper layers
- 4
- Thickness
- 1.64 mm
- Parts
- 168
- Nets
- 254
- Pads
- 938
- Tracks, vias
- 1,623, 399
- Pours
- 55
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 13 Dec 2022
- Updated
- 6 Nov 2026
Overview
Tycho is an open-source printed circuit board by greatscottgadgets, from the greatscottgadgets/tycho repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 4-layer board of 90.9 × 100 mm with 168 parts on 254 nets, routed with 1,623 tracks and 399 vias.
It is built around the CY7C68013A-56LTXC, PI3B3257LE and 24LC128-I/P, with the MIC5504-3.3YM5, AO3400A and PMEG10010ELRX among its other parts. Its parts include 63 resistors, 46 capacitors, 19 transistors, 16 ICs and 10 connectors.
Main components
6CY7C68013A-56LTXC
QFN-56-EP(8x8)0℃~+70℃ 16KB 16KB 24 3V~3.6V 48MHz 51 Series 8 Bit External ROMless QFN-56-EP(8x8) Microcontrollers (MCU/MPU/SOC)Infineon TechnologiesMicrocontrollers (MCU/MPU/SOC)PI3B3257LE
TSSOP-40℃~+85℃ 0.25ns@3.3V,50pF 3V~3.63V 3uA 8/4 Output enable high-impedance、Tri-state output Single Supply TSSOP Signal Switches, Multiplexers, Decoders ROHSDiodes IncorporatedSignal Switches, Multiplexers, Decoders24LC128-I/P
PDIP-8-40℃~+85℃ 1,000,000 cycles 128Kbit 2.5V~5.5V 200 Years 400kHz 5ms Hardware write protection function、Noise suppression function I2C PDIP-8 EEPROM ROHSMicrochip TechnologyEEPROMMIC5504-3.3YM5
SOT-23-5-40℃~+125℃@(Tj) 1 120uVrms 15uA 180mV@(300mA) 3.3V 300mA 5.5V 75dB@(1kHz) Fixed Over Temperature Protection、Enable Positive SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTECH PUBLICVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsAO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsPMEG10010ELRX
SOD-123W1 Independent 100V 150nA@100V 1A 50A 770mV@1A SOD-123W Schottky Diodes ROHSNexperiaSchottky Diodes
Parts
168| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 0.1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C13, C20, C26, C27, C28, C29, C30, C31, C32, C33, C34, C35, C36, C37, C38 +2 |
| 17 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R6, R40, R41, R42, R44, R45, R54, R55, R56, R57, R58, R61 +1 |
| 10 | 100k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R11, R21, R22, R26, R27, R28, R32, R33, R34, R46 |
| 7 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R5, R24, R30, R36, R38, R39, R43 |
| 7 | 1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2, C3, C4, C43, C44, C45, C46 |
| 7 | 2.2k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R19, R20, R25, R31, R37, R51, R52 |
| 6 | PMOS | Package_TO_SOT_SMD:Vishay_PowerPAK_SC70-6L_Single | Q3, Q6, Q7, Q10, Q11, Q14 |
| 5 | 1uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7, C8, C11, C14, C25 |
| 5 | USB_C_Receptacle | tycho:USB_C_Receptacle_hand-solder | J3, J4, J11, J12, J13 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 2PNP | Package_TO_SOT_SMD:SOT-363_SC-70-6 | Q4, Q8, Q12 |
| 3 | 33k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R23, R29, R35 |
| 3 | 5.1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7, R47, R66 |
| 3 | 6.2±2% | tycho:DFN1006-2 | D1, D2, D3 |
| 3 | NPN | Package_TO_SOT_SMD:SOT-23-3 | Q5, Q9, Q13 |
| 3 | Si7336ADP | Package_SO:PowerPAK_SO-8_Single | Q1, Q15, Q17 |
| 2 | 0.1uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C12, C24 |
| 2 | 1 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R13, R14 |
| 2 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R63, R64 |
| 2 | 10uF | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C21, C22 |
| 2 | 10uF | Capacitor_SMD:C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C18, C19 |
| 2 | 12pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C41, C42 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R9, R10 |
| 2 | 2.2uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C39, C40 |
| 2 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q16, Q18 |
| 2 | DG449 | Package_TO_SOT_SMD:SOT-23-8_Handsoldering | U14, U15 |
| 2 | IPZ40N04S5L7R4 | tycho:PG-TSDSON-8-32 | Q2, Q27 |
| 2 | PI3B3257 | Package_SO:QSOP-16_3.9x4.9mm_P0.635mm | U12, U13 |
| 2 | PMEG10010ELR | Diode_SMD:Nexperia_CFP3_SOD-123W | D4, D5 |
| 2 | ~ | Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm | U3, U7 |
| 2 | ~ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5, U10 |
| 1 | 0 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R8 |
| 1 | 0.01 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R18 |
| 1 | 0.01uF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C10 |
| 1 | 1.8 | tycho:PWR163S | R49 |
| 1 | 100uF | Capacitor_SMD:C_Elec_6.3x5.4 | C23 |
| 1 | 150k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R16 |
| 1 | 1uH | Inductor_SMD:L_Coilcraft_XAL6030-XXX | L1 |
| 1 | 22k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R65 |
| 1 | 24 MHz | Crystal:Crystal_SMD_2016-4Pin_2.0x1.6mm | Y1 |
| 1 | 24LC128 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U8 |
| 1 | 2K7 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R53 |
| 1 | 33.2k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R15 |
| 1 | 33uF | Capacitor_SMD:C_Elec_6.3x5.4 | C17 |
| 1 | 4.7uF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C9 |
| 1 | 40 | tycho:PWR163S | R48 |
| 1 | 4700pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C15 |
| 1 | 47pF | Capacitor_SMD:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C16 |
| 1 | 75k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R17 |
| 1 | 85°C | tycho:Bourns-SC | SW3 |
| 1 | 9.53k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R12 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_CUI_PJ-102AH_Horizontal | J8 |
| 1 | CY7C68013A-56LTX | tycho:QFN-56-1EP_8x8mm_P0.5mm_EP4.5x5.2mm_ThermalVias_TopTented | U2 |
| 1 | Conn_02x16_Odd_Even | tycho:shrouded_pin-header_2x17 | J14 |
| 1 | Conn_ARM_JTAG_SWD_10 | Connector_PinHeader_1.27mm:PinHeader_2x05_P1.27mm_Horizontal | J6 |
| 1 | FAIL | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | SW2 |
| 1 | ISL54233 | Package_DFN_QFN:QFN-12-1EP_3x3mm_P0.51mm_EP1.45x1.45mm | U16 |
| 1 | MIC5504-3.3YM5 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | NEIGHBOR1 | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Vertical | J1 |
| 1 | NEIGHBOR2 | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Vertical | J2 |
| 1 | PASS | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | SW1 |
| 1 | PI3USB102G | tycho:Diodes_10-TQFN_ZL | U4 |
| 1 | TCXO | tycho:TXETALSANF-10.000000 | U9 |
| 1 | ~ | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U11 |
| 1 | ~ | tycho:TPS55288 | U6 |
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Questions
How big is the Tycho PCB?
It measures 90.9 × 100 mm and has 4 copper layers, 1.64 mm thick.
What parts does the Tycho use?
168 parts, built around the CY7C68013A-56LTXC, PI3B3257LE, 24LC128-I/P and MIC5504-3.3YM5. 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 Tycho KiCad files?
From the greatscottgadgets/tycho repository on GitHub, at the commit this page was made from: the board is tycho/tycho.kicad_pcb and its schematic sasserides/sasserides.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tycho design in my own project?
Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).