2 layers94 × 79.6 mm
4 layers94 × 79.6 mm
Mdt chipdown
andykarpov/mdt-chipdown2MicroDEXED touch custom PCB
- Size
- 94 × 79.6 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 141
- Nets
- 154
- Pads
- 677
- Tracks, vias
- 1,972, 485
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 7 Aug 2026
- Updated
- 30 Aug 2026
Overview
Mdt chipdown is an open-source printed circuit board by andykarpov, from the andykarpov/mdt-chipdown repository on GitHub, published under the MIT licence. It is a 4-layer board of 94 × 79.6 mm with 141 parts on 154 nets, routed with 1,972 tracks and 485 vias.
It is built around the MIMXRT1062DVJ6B, MKL02Z32VFG4 and GD25Q64ESIGR, with the APS6404L-3SQR-SN, 74LVC2G06GW and AMS1117-3.3 among its other parts. Its parts include 53 capacitors, 24 resistors, 11 ICs, 7 diodes and 5 connectors. It belongs with the NXP (LPC, Kinetis, i.MX RT) boards of this library.
Main components
12
MIMXRT1062DVJ6B
LFBGA-196127 12bit 1MB 32 Bit 3V~3.6V 600MHz ARM Cortex-M7 Built-in+External External LFBGA-196 Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)
MKL02Z32VFG4
QFN-16-EP(3x3)-40℃~+105℃ 1.71V~3.6V 12bit 14 32 Bit 32KB 48MHz 4KB ARM Cortex-M0+ Built-in FLASH QFN-16-EP(3x3) Microcontrollers (MCU/MPU/SOC) ROHSNXP SemiconductorsMicrocontrollers (MCU/MPU/SOC)
GD25Q64ESIGR
SOP-8-208mil100,000 cycles 12uA 133MHz 2.7V~3.6V 20 Years 500us 64Mbit SPI SOP-8-208mil NOR FLASH ROHSGigaDevice Semicon BeijingNOR FLASH
APS6404L-3SQR-SN
SOP-8SOP-8 PSRAM ROHSAP MemoryDRAM
74LVC2G06GW
SOT-363-40℃~+125℃ 1.65V~5.5V 1.7V~2V 2 2ns@5V,50pF 32mA 4uA 700mV~800mV 74LVC 800mV Open-drain Power shutdown protection、Noise suppression function Schmitt trigger SOT-363 Inverters ROHSMDDInverters
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
PCM5102APW
TSSOP-20-25℃~+85℃ 1.8V~3.3V 2 32 384kHz 500uA 50MHz Audio Decoder Digital filtering、Power-down mode I2S TSSOP-20 ADCs/DACs - Special Purpose ROHSTexas InstrumentsADCs/DACs - Special Purpose
TLV75733PDBV
SOT-23-5-40℃~+125℃@(Tj) 1 1A 3.3V 40uA 46dB@(100kHz) 5.5V 650mV@(1A) 71.5uVrms Fixed Positive Under Voltage Lockout、Over Current Protection、Over Temperature Protection、Soft Start SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TPD3S014DBV
SOT-23-6-40℃~+125℃ 20nA 4.5V~5.5V 500mA Not supported Not supported Soft-start、Under-voltage lockout、Overcurrent Protection、Short-Circuit Protection、Reverse current blocking、Output discharge function SOT-23-6 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
BAT54S
SOT-231 Pair Series Connection 1V@100mA 200mA 2uA@25V 30V 600mA SOT-23 Schottky Diodes ROHSMDDSchottky DiodesBAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky DiodesDMG2305UX
SOT-23-55℃~+150℃ 1 P-Channel 1.7W 190pF 1V 20V 4.1A 52mΩ@4.5V 7.8nC 740pF P-Channel SOT-23 MOSFETs ROHSTECH PUBLICMOSFETs
README
README.mdMicroDEXED Touch Chipdown custom edition
This is an attempt to create a custom PCB of the MicroDEXED Touch (MDT) project to satisfy my own requirements:
- No modules, all chips should be soldered on PCB
- Avoid THT components as much as possible
Warning! Work in progress. The revB is untested and unreleased yet.
- Current tested revision: revA
- Current dev revision: revB
PCB changelog & ERRATA:
- revA - initial revision
- Note: Jumpers to select MIDI IN/OUT standard should be removed, instead of them please use 0 Ohm resistors
- Latest revA contains the following changes: jumpers replaced with solder jumpers
- The overall display height is slightly higher than expected. Please use 8.5mm standoffs for it. Also the plastic housing from the display pin headers should be removed and the pin height should be reduced to fit the desired connection height of 8.5mm
- revB:
- 4-layers PCB
- Replaced teensy module with a set of chips
- Added additional SD card
- Added additional LED from the supplementary MCU
- Changed USB Host power path
Rev.A Renders
Case for rev.A
Rev.B Renders
Parts
141| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C7, C8, C9, C11, C12, C15, C21, C22, C23, C24, C27, C29, C31, C53 |
| 9 | 10u | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C4, C6, C14, C17, C18, C20, C34, C36 |
| 9 | 220n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C32, C38, C39, C43, C45, C46, C48, C49, C52 |
| 5 | 47 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R5, R21, R22, R23 |
| 4 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16, R17, R18, R19 |
| 4 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R8, R9, R13 |
| 4 | 4u7 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C33, C40, C41, C44 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3mm_Pad_Via | H1, H3, H5, H7 |
| 4 | ~ | PCM_fab:MountingHole_M3 | H2, H4, H6, H8 |
| 3 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R11, R12 |
| 2 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R24 |
| 2 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15, R20 |
| 2 | 100uF | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D_HandSolder | C2, C3 |
| 2 | 12p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C25, C26 |
| 2 | 20p | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C28, C30 |
| 2 | 2A | Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder | F1, F2 |
| 2 | 2n2 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C16, C19 |
| 2 | 2u2 | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C13, C35 |
| 2 | 5k1 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2 |
| 2 | APS6404L-3SQR | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U5, U6 |
| 2 | BAT54S | Package_TO_SOT_SMD:SOT-23_Handsoldering | D1, D7 |
| 2 | BI | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1, J2 |
| 2 | Ferrite 120 | PCM_Inductor_SMD_AKL:L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | L1, L2 |
| 2 | Jumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP3, JP4 |
| 2 | Micro_SD_Card | footprints:GCT-MEM2055-00-190-01-A | J4, J5 |
| 1 | 100uF | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C_HandSolder | C10 |
| 1 | 10n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C50 |
| 1 | 10n | Capacitor_SMD:C_0805_2012Metric | C51 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C37 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 220n | Capacitor_SMD:C_0805_2012Metric | C47 |
| 1 | 24MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm_HandSoldering | Y1 |
| 1 | 2M2 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14 |
| 1 | 32768 | Crystal:Crystal_C26-LF_D2.1mm_L6.5mm_Horizontal_1EP_style2 | Y2 |
| 1 | 4u7 | PCM_Inductor_SMD_AKL:L_0805_2012Metric_Pad1.15x1.40mm | L3 |
| 1 | 4u7 | Capacitor_SMD:C_0805_2012Metric | C42 |
| 1 | 74LVC2G06 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U11 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:TO-252-2 | U2 |
| 1 | BAT54C | Package_TO_SOT_SMD:SOT-23_Handsoldering | D6 |
| 1 | CV CLOCK IN | TestPoint:TestPoint_Pad_2.0x2.0mm | TP4 |
| 1 | CV GATE IN | TestPoint:TestPoint_Pad_2.0x2.0mm | TP3 |
| 1 | CV IN | TestPoint:TestPoint_Pad_2.0x2.0mm | TP5 |
| 1 | DMG2305UX | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1 |
| 1 | GD25Q64ESIGR | Package_SO:SOIC-8_5.3x5.3mm_P1.27mm | U8 |
| 1 | GPIO_AD_B0_00 | TestPoint:TestPoint_Pad_2.0x2.0mm | TP8 |
| 1 | GPIO_AD_B1_12 | TestPoint:TestPoint_Pad_2.0x2.0mm | TP1 |
| 1 | GPIO_AD_B1_13 | TestPoint:TestPoint_Pad_2.0x2.0mm | TP2 |
| 1 | ILI9341 3.2" capacitive touch | Connector_PinSocket_2.54mm:PinSocket_1x14_P2.54mm_Vertical | U3 |
| 1 | Jumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP5 |
| 1 | Jumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP6 |
| 1 | LED1 | PCM_LED_THT_AKL:LED_Indicator_D3.0mm_W4.6mm_L6.5mm | D3 |
| 1 | LED2 | PCM_LED_THT_AKL:LED_Indicator_D3.0mm_W4.6mm_L6.5mm | D4 |
| 1 | LINE OUT | footprints:AUDIO_JACK_3.5MM_SMD_TRRS_rounded_mixed | TRS1 |
| 1 | MCP INTA | TestPoint:TestPoint_Pad_2.0x2.0mm | TP6 |
| 1 | MCU LED | PCM_LED_THT_AKL:LED_Indicator_D3.0mm_W4.6mm_L6.5mm | D5 |
| 1 | MEM CS | TestPoint:TestPoint_Pad_2.0x2.0mm | TP7 |
| 1 | MIDI IN | footprints:AUDIO_JACK_3.5MM_SMD_TRRS_rounded_mixed | TRS3 |
| 1 | MIDI OUT | footprints:AUDIO_JACK_3.5MM_SMD_TRRS_rounded_mixed | TRS2 |
| 1 | MIMXRT1062DVJ6B | footprints:BGA196C80P14X14_1200X1200X152 | U9 |
| 1 | MKL02Z32VFG4 | Package_DFN_QFN:QFN-16-1EP_3x3mm_P0.5mm_EP1.9x1.9mm | U7 |
| 1 | ON_OFF | PCM_SparkFun-Switch:Push_PTH_RA_8-020_h7.5mm | SW1 |
| 1 | PCM5102A | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U4 |
| 1 | PROGRAM | PCM_SparkFun-Switch:Push_PTH_RA_8-020_h7.5mm | SW2 |
| 1 | Rotary_Encoder_L | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | ENC1 |
| 1 | Rotary_Encoder_R | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | ENC2 |
| 1 | SM6T6V8A | Diode_SMD:D_SMB_Handsoldering | D2 |
| 1 | SPDIF OUT | footprints:Pin_Header_Straight_1x02 | J3 |
| 1 | TLP2362 | Package_SO:SO-5-6_4.55x3.7mm_P1.27mm | OC1 |
| 1 | TLV75733PDBV | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U10 |
| 1 | TPD3S014 | Package_TO_SOT_SMD:SOT-23-6_Handsoldering | U1 |
| 1 | USB | Connector_USB:USB_C_Receptacle_G-Switch_GT-USB-7010ASV | USB2 |
| 1 | USB_HOST | Connector_USB:USB_A_Molex_67643_Horizontal | USB1 |
| 1 | logo | footprints:andy_karpov_logo5_silk | LOGO2 |
| 1 | logo | footprints:microDXD_logo12 | LOGO1 |
| 1 | logo | Symbol:KiCad-Logo2_6mm_SilkScreen | LOGO3 |
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Questions
How big is the Mdt chipdown PCB?
It measures 94 × 79.6 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Mdt chipdown use?
141 parts, built around the MIMXRT1062DVJ6B, MKL02Z32VFG4, GD25Q64ESIGR and APS6404L-3SQR-SN. 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 Mdt chipdown KiCad files?
From the andykarpov/mdt-chipdown repository on GitHub, at the commit this page was made from: the board is pcb/revB1/mdt-chipdown.kicad_pcb and its schematic pcb/revA/mdt-chipdown.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mdt chipdown design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).