6 layers54 × 28 mm
6 layers54 × 28 mm
Wius new
ssavazzi02/tinyProbe_wius- Size
- 54 × 28 mm
- Copper layers
- 6
- Thickness
- 1.19 mm
- Parts
- 142
- Nets
- 177
- Pads
- 729
- Tracks, vias
- 1,686, 333
- Pours
- 18
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 5 Jun 2026
- Updated
- 1 Sep 2026
Overview
Wius new is an open-source printed circuit board by ssavazzi02, from the ssavazzi02/tinyProbe_wius repository on GitHub. It is a 6-layer board of 54 × 28 mm with 142 parts on 177 nets, routed with 1,686 tracks and 333 vias.
It is built around the PCAL6408AHK, TPS62840YBGR and SN74AXC4T774RSVR, with the TXB0104RUTR, 93LC66B-I/MS and BQ24040DSQT among its other parts. Its parts include 63 resistors, 47 capacitors, 13 ICs, 6 connectors and 2 switches.
Main components
12
PCAL6408AHK
-Reset function、Cascading and address extension、Built-in LED driver、IO level configurable - I/O Expanders ROHSNXP SemiconductorsI/O Expanders
TPS62840YBGR
DSBGA-6(1x1.5)-40℃~+125℃@(TJ) 1 1.8MHz 1.8V~3.3V 1.8V~6.5V 60nA 750mA Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Output discharge、Cycle-by-cycle current limiting Step-down type Yes DSBGA-6(1x1.5) DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersSN74AXC4T774RSVR
UQFN-16(1.8x2.6)-40℃~+125℃ 1 310Mbps 4 650mV~3.6V 650mV~3.6V Bidirectional Tri-State UQFN-16(1.8x2.6) Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
TXB0104RUTR
UQFN-12(1.7x2)-40℃~+85℃ 1 1.2V~3.6V 1.65V~5.5V 100Mbps 4 Auto Direction Detection Bidirectional Tri-State UQFN-12(1.7x2) Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
93LC66B-I/MS
MSOP-8-40℃~+85℃ 1,000,000 cycles 2.5V~5.5V 200 Years 3MHz 4Kbit 6ms Built-in write enable latch (WEL)、Power-down/Power-up protection circuit、Sequential read function SPI MSOP-8 EEPROM ROHSMicrochip TechnologyEEPROM
BQ24040DSQT
WSON-10-EP(2x2)0℃~+125℃ 1 125uA 1A 3.5V~28V 4.2V Charging IC Constant current charging、Constant voltage charging、Trickle charging、Automatic recharge、Charge termination、Programmable charging current、Under-voltage lockout、Overcurrent Protection、Short-Circuit Protection、Overvoltage protection Lithium Battery Support Support WSON-10-EP(2x2) Battery Management ROHSTexas InstrumentsBattery Management
LSM6DSV
LGA-14(2.5x3)-40℃~+85℃ 1.71V~3.6V 16bit 4.5KB Accelerometer Gyroscope SPI、I2C、I3C X,Y,Z X,Y,Z ±16g ±4000dps LGA-14(2.5x3) Accelerometers ROHSSTMicroelectronicsAccelerometers
SN74LVC1T45DCK
SC-70-6-40℃~+85℃ 1 1 1.65V~5.5V 1.65V~5.5V 420Mbps Bidirectional Level translator Power-off protection、Output enable high-impedance Tri-State SC-70-6 Translators, Level Shifters ROHSTexas InstrumentsTranslators, Level Shifters
GRM033R61A104ME15D
0201100nF 10V X5R ±20% 0201 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMTERJ-1GJF22R0C
0201Chip Resistor - Surface MountPanasonicERJ-1GJF1002C
0201Chip Resistor - Surface MountPanasonic
GRM155R61C105MA12
040216V 1uF X5R ±20% 0402 Multilayer Ceramic Capacitors MLCC - SMD/SMT ROHSMurataMultilayer Ceramic Capacitors MLCC - SMD/SMT
Parts
142| Qty | Value | Footprint | References |
|---|---|---|---|
| 26 | 100nF | Capacitor_SMD:C_0201_0603Metric | C10, C11, C15, C16, C17, C18, C20, C21, C22, C25, C28, C30, C31, C32, C34, C35 +10 |
| 20 | 22 | Resistor_SMD:R_0201_0603Metric | R5, R36, R37, R41, R42, R43, R44, R45, R47, R48, R49, R52, R53, R54, R55, R56 +4 |
| 13 | 10k | Resistor_SMD:R_0201_0603Metric | R8, R10, R11, R13, R14, R17, R20, R28, R31, R34, R38, R39, R63 |
| 6 | 1uF | Capacitor_SMD:C_0402_1005Metric | C1, C3, C13, C14, C24, C26 |
| 5 | 0 | Resistor_SMD:R_0402_1005Metric | R3, R4, R24, R50, R51 |
| 5 | 10uF | Capacitor_SMD:C_0603_1608Metric | C2, C7, C8, C9, C27 |
| 4 | 100k | Resistor_SMD:R_0402_1005Metric | R25, R26, R27, R30 |
| 4 | MountingHole_Pad | dz_mech:MountingHole_2.4mm_M2_Pad_TopBottom | M1, M2, M3, M4 |
| 3 | 100k | Resistor_SMD:R_0201_0603Metric | R40, R61, R62 |
| 2 | 10k | Resistor_SMD:R_0402_1005Metric | R22, R29 |
| 2 | 10nF | Capacitor_SMD:C_0402_1005Metric | C29, C33 |
| 2 | 10uF | Capacitor_SMD:C_0402_1005Metric | C114, C115 |
| 2 | 1k | Resistor_SMD:R_0402_1005Metric | R6, R12 |
| 2 | 1pF | Capacitor_SMD:C_0402_1005Metric | C49, C50 |
| 2 | 22 | Resistor_SMD:R_0402_1005Metric | R32, R33 |
| 2 | 280 | dz_res:RESC1005X40N | R19, R21 |
| 2 | 4.7uF | Capacitor_SMD:C_0402_1005Metric | C19, C23 |
| 2 | 5.1k | Resistor_SMD:R_0402_1005Metric | R15, R16 |
| 2 | Button Switch SPST-No | Button_Switch_SMD:SW_SPST_B3U-1000P | SW3, SW4 |
| 2 | SN74AXC4T774RSVR | Package_DFN_QFN:UQFN-16_1.8x2.6mm_P0.4mm | U6, U8 |
| 2 | TXB0104RUT | Package_DFN_QFN:Texas_R-PUQFN-N12 | U2, U13 |
| 1 | 1.1k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 1.5uH | Inductor_SMD:L_0805_2012Metric | L3 |
| 1 | 100 | Resistor_SMD:R_0402_1005Metric | R23 |
| 1 | 100Ω@100MHz | Inductor_SMD:L_0603_1608Metric | FB2 |
| 1 | 1040310811 | Connector_Card:microSD_HC_Molex_104031-0811 | J3 |
| 1 | 120Ω@100MHz | dz_ind:BLM15KD121SN1D | FB6 |
| 1 | 12k | Resistor_SMD:R_0201_0603Metric | R9 |
| 1 | 18pF | Capacitor_SMD:C_0402_1005Metric | C12 |
| 1 | 1M | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 1uF | Capacitor_SMD:C_0201_0603Metric | C4 |
| 1 | 2 | Connector_JST:JST_SUR_SM02B-SURS-TF_1x02-1MP_P0.80mm_Horizontal | J8 |
| 1 | 2.2k | Resistor_SMD:R_0201_0603Metric | R46 |
| 1 | 2.2uH | dz_ind:DFE2MCAH2R2MJ0L | L9 |
| 1 | 220k | Resistor_SMD:R_0402_1005Metric | R35 |
| 1 | 2k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 52746-1271 | dz_con:527461271 | J2 |
| 1 | 6.65k | Resistor_SMD:R_0402_1005Metric | R18 |
| 1 | 93LC66B-I/MS | dz_mem:MSOP8_MC_MCH | U10 |
| 1 | APTB1615SURKCGKC-F01 | dz_dio:LED_APTB1615SURKCGKC-F01 | D1 |
| 1 | ASCO-12.000MHZ-EK-T3 | Oscillator:Oscillator_SMD_Abracon_ASCO-4Pin_1.6x1.2mm | Y2 |
| 1 | BQ24040DSQT | dz_pwr:BQ24040DSQT | IC1 |
| 1 | FT232HPQ | dz_comm:QFN-56_FT232HPQ_FTD | U4 |
| 1 | LSM6DSV | Package_LGA:LGA-14_3x2.5mm_P0.5mm_LayoutBorder3x4y | U5 |
| 1 | PCAL6408AHK | Package_DFN_QFN:UQFN-16_1.8x2.6mm_P0.4mm | U9 |
| 1 | SIT1552AI-JE-DCC-32.768E | dz_sens:SIT1552AIJEDCC32768E | Y1 |
| 1 | SN74LVC1T45DCK | Package_TO_SOT_SMD:SOT-363_SC-70-6 | U12 |
| 1 | SOIC_clipProgSmall | dz_mech:SOIC_clipProgSmall | U7 |
| 1 | SS5-10-3.00-L-D-K-TR | dz_con:SAMTEC_SS5_10_3.00_X_D_K_XX | J4 |
| 1 | SiWG917Y | dz_mcu:SiWG917Y | U3 |
| 1 | TPS62840YBGR | Package_BGA:Texas_DSBGA-6_0.9x1.4mm_Layout2x3_P0.5mm | U1 |
| 1 | U.FL | Connector_Coaxial:U.FL_Hirose_U.FL-R-SMT-1_Vertical | J9 |
| 1 | USB4745-03-A | dz_con:GTC_USB4745 | J5 |
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Questions
How big is the Wius new PCB?
It measures 54 × 28 mm and has 6 copper layers, 1.19 mm thick.
What parts does the Wius new use?
142 parts, built around the PCAL6408AHK, TPS62840YBGR, SN74AXC4T774RSVR and TXB0104RUTR. 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 Wius new KiCad files?
From the ssavazzi02/tinyProbe_wius repository on GitHub, at the commit this page was made from: the board is wius_new.kicad_pcb and its schematic MCU_ULP_IO.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wius new design in my own project?
Its repository states no licence, so its author keeps all rights: ask ssavazzi02 before reusing the design.