Dib mio168
eez-open·dib-mio168·EDA files/KiCad/EEZ DIB MIO168.kicad_pcb
About the Dib mio168 PCB
Dib mio168 is an open source STM32 PCB design by eez-open, published on GitHub under the TAPR-OHL-1.0 license. It is a 4-layer board measuring 146 × 95 mm, with 237 components from 68 distinct parts.
Its main chip is the STM32F446ZCT6, from the STM32 family. Other key parts include the SN6505BDBVT, LP5907MFX-3.3/NOPB, L78L15, L79L15 and M24C32-WMN6P. By type, the board carries 88 capacitors, 66 resistors, 23 ICs, 22 diodes, 11 transistors and 8 crystals.
From the project
EEZ DIB Mixed I/O module
The EEZ DIB MIO168 module features multiple digital I/O, analog outputs and expansion connectors for carry various AFEs.
On-board STM32F446ZCT6 high-performance foundation line MCU, ARM Cortex-M4 with DSP and FPU, 256 KiB Flash, LQFP-144 package 1 x 8-pin single row 3.81 mm connector (digital inputs) 1 x 16-pin dual row 3.81 mm I/O connector (digital and analog outputs) 2 x 10-pin ADIB 2.0 mm connectors 8 x protected digital inputs (3.3/5/24 V), 2 x fast/slow, 6 x slow 8 x digital outputs (low-side) with multiple protections, voltage clamp 42V, current limit 10 A 2 x PWM outputs (protected)…

Main components on the Dib mio168
Dib mio168 bill of materials (BOM)
237 components, 68 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | SN6505BDBVT | DBV0006A_N | IC1 |
| 1 | LP5907MFX-3.3/NOPB | SOT23-5L_STM | IC2 |
| 1 | L78L15 | SOIC127P600X173-8N | IC3 |
| 1 | L79L15 | SOIC127P600X173-8N | IC4 |
| 1 | M24C32-WMN6P | SOIC127P600X173-8N | IC5 |
| 2 | SI8641NSOIC-16 | SOIC127P600X265-16N | IC6, IC7 |
| 1 | STM32F446ZCT6 | LQFP-144_20X20MM | IC8 |
| 1 | SN74LVC1G139DCUR | DCU8 | IC9 |
| 1 | W9812G6KH-6 | TSOPII-54 | IC10 |
| 2 | OPA2196IDR | SOIC127P600X173-8N | IC11, IC19 |
| 2 | DAC7760IPWPR | PWP24 | IC12, IC13 |
| 4 | BM2LB150FJ-CE2 | SOIC127P600X173-8N | IC14, IC17, IC18, IC20 |
| 1 | DAC7563TDGSR | DGS10 | IC15 |
| 1 | OPA376AIDBVR | SOT23-5L_STM | IC16 |
| 1 | TL431B | SOT103P240X110-3N | IC21 |
| 1 | 74HC126PW,118 | PW(R-PDSO-G14) | IC22 |
| 1 | DG212BDY-T1-E3 | SO16 | IC23 |
| 5 | 2N7002PS,115 | SC88 | Q1, Q2, Q3, Q4, Q5 |
| 1 | MMBT5401 | SOT23-BEC | Q6 |
| 2 | MMBT5551 | SOT23-BEC | Q7, Q8 |
Show 48 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | IRLML2246TRPBF | SOT103P240X110-3N | Q9, Q11 |
| 1 | 2N7002 | SOT103P240X110-3N | Q10 |
| 1 | ~ | 77317-104-28LF | X1 |
| 1 | 691327310016 | 691327310016 | X3 |
| 1 | 691322310008 | 691322310008 | X4 |
| 2 | 87833-1032 | DS1014-10RF1B | X5, X7 |
| 2 | DS1023-2*14S21 | TSW-114-07-F-D | X6, X8 |
| 1 | LF XTAL026392 | 12SMX(B) | Y1 |
| 1 | 4907 | 4907 | J1 |
| 2 | DS1025-01-1*3P8BV1-B | ZL303-03P | JP2, JP3 |
| 2 | PCB-MB | PCB-MB-01 | KK1, KK2 |
| 1 | WE-750315371 | MURATA_78615 | TR1 |
| 4 | PESD12VL1BA,115 | SOD-323_PESD | TVS1, TVS2, TVS3, TVS4 |
| 2 | SMAJ16A | DO214AC-2 | ZD1, ZD2 |
| 12 | MBR0530T3G | SOD123 | D1, D2, D3, D4, D5, D6, D7, D8 +4 |
| 10 | BAT54S | SOT23-3 | D15, D16, D17, D18, D19, D20, D21, D22 +2 |
| 1 | SRF0905-202Y | SRF0905 | L1 |
| 6 | BLM18AG102SH1D | BEAD0603 | L2, L3, L4, L5, L6, L7 |
| 1 | 4n7/1kV | C_1206_3216Metric | C1 |
| 45 | 100n | C_0603_1608Metric | C2, C10, C16, C17, C19, C20, C21, C22 +37 |
| 2 | 10u | C_1206_3216Metric | C3, C83 |
| 9 | 4u7 | C_0805_2012Metric | C4, C5, C11, C12, C53, C54, C62, C64 +1 |
| 7 | 1u | C_0805_2012Metric | C6, C7, C8, C9, C13, C14, C23 |
| 3 | 2u2 | C_0805_2012Metric | C15, C31, C33 |
| 1 | 4u7 | EC1206 | C32 |
| 2 | 4p7 | C_0603_1608Metric | C40, C41 |
| 2 | 2n2 | C_0805_2012Metric | C61, C63 |
| 2 | 22n | C_0805_2012Metric | C65, C66 |
| 4 | 1n | C_0805_2012Metric | C67, C68, C75, C76 |
| 3 | 100p | C_0805_2012Metric | C79, C82, C90 |
| 7 | 10n | C_0805_2012Metric | C80, C84, C85, C86, C87, C88, C89 |
| 2 | 470K | R_0805_2012Metric | R1, R2 |
| 5 | 47R | R_0805_2012Metric | R3, R25, R26, R54, R55 |
| 4 | 10K | R_0805_2012Metric | R4, R6, R59, R60 |
| 1 | 4K7 | R_0805_2012Metric | R5 |
| 4 | 15R | R_0805_2012Metric | R9, R10, R11, R12 |
| 6 | 9K09 0.1% | R_0805_2012Metric | R13, R14, R15, R16, R17, R18 |
| 4 | 75K 0.1% | R_0805_2012Metric | R19, R20, R21, R22 |
| 2 | 180R | R_0805_2012Metric | R23, R24 |
| 8 | 2K7 | R_1206_3216Metric | R27, R28, R29, R30, R31, R32, R33, R34 |
| 8 | 27K | R_0805_2012Metric | R35, R37, R39, R41, R43, R45, R47, R49 |
| 10 | 1K | R_0805_2012Metric | R36, R38, R40, R42, R44, R46, R48, R50 +2 |
| 3 | 100R | R_0805_2012Metric | R51, R61, R62 |
| 2 | 470R | R_0805_2012Metric | R52, R56 |
| 1 | 1K8 | R_0805_2012Metric | R53 |
| 2 | 100K | R_0805_2012Metric | R57, R58 |
| 3 | DR1206-33R-4/8 | CAY16 | RN1, RN3, RN4 |
| 1 | DR1206-47K-4/8 | CAY16 | RN2 |
Dib mio168 design files
The KiCad project lives in the eez-open/dib-mio168 repository on GitHub; these links point at the commit this page was built from.
Dib mio168: common questions
What microcontroller does the Dib mio168 use?
The Dib mio168 is built around the STM32F446ZCT6, from the STM32 family.
How big is the Dib mio168 PCB?
The Dib mio168 measures 146 × 95 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Dib mio168?
237 components, from 68 distinct parts. The full bill of materials is listed on this page.
Where can I download the Dib mio168 design files?
From the eez-open/dib-mio168 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Dib mio168 design in my own project?
Yes, under the terms of its TAPR-OHL-1.0 license, which eez-open chose for the repository.
Can I test firmware for the Dib mio168 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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