
4 Bit - Seven Seg Interface
Shaxzodm2611/4-bit-Adder-Interface-Board
A custom PCB designed to mimic the function of a CPU. Entirely made from discrete logic ICs.

STM32 MICROCONTROLLER BOARD is an open-source printed circuit board by mirjunaid, from the mirjunaid/STM32-DEVKIT repository on GitHub. It is a 4-layer board of 67.6 × 58.3 mm with 73 parts on 66 nets, routed with 810 tracks and 90 vias.
It is built around the L7805CV, 1SMA5929BT3G and AOD4185, with the ACM70V-701-2PL-TL00, PJ-102A and CFS-0102TB among its other parts. Its parts include 23 capacitors, 16 resistors, 13 connectors, 6 diodes and 3 ICs. It belongs with the microcontroller boards boards and the STM32 boards of this library.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 22uF | Capacitor_SMD:C_0603_1608Metric | C1, C3, C7, C17, C21 |
| 4 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C4, C5, C18, C22 |
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric | C12, C13, C14, C16 |
| 4 | 4.7k | Resistor_SMD:R_0603_1608Metric | R3, R8, R15, R16 |
| 3 | 10k | Resistor_SMD:R_0603_1608Metric | R1, R2, R4 |
| 3 | 1uF | Capacitor_SMD:C_0603_1608Metric | C6, C19, C20 |
| 3 | 4.7uF | Capacitor_SMD:C_0603_1608Metric | C11, C15, C23 |
| 2 | PTS636 SM50 SMTR LFS | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW2, SW3 |
| 2 | 1SMA5929BT3G | Diode_SMD:D_SMB | D2, D3 |
| 2 | 1k | Resistor_SMD:R_0603_1608Metric | R5, R7 |
| 2 | 4.7uH(SRU1048-4R7Y) | Inductor_SMD:L_Bourns-SRU1028_10.0x10.0mm | L1, L2 |
| 2 | 9pF | Capacitor_SMD:C_0603_1608Metric | C9, C10 |
| 2 | AOD4185 | DPAK:TO252_AOS-M | Q1, Q3 |
| 2 | T6N33CA | tvs_diode_footprint:tvs_diode_footprint | D4, D5 |
| 1 | ACM70V-701-2PL-TL00 | Inductor_SMD:L_CommonModeChoke_TDK_ACM7060 | FL1 |
| 1 | PJ-102A | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | 0.33uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R9 |
| 1 | 10R | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 10nF | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | 120R | Fuse:Fuse_0805_2012Metric | FB1 |
| 1 | 13k | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | 2.2k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 3.3V | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J2 |
| 1 | 330R | LED_SMD:LED_0201_0603Metric | R14 |
| 1 | 40.2k | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 47k | Resistor_SMD:R_0603_1608Metric | R11 |
| 1 | 5V | Connector_JST:JST_EH_B2B-EH-A_1x02_P2.50mm_Vertical | J4 |
| 1 | CAN | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J11 |
| 1 | CFS-0102TB | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1 |
| 1 | CM7V-T1A-32.768kHz | OSCILLATOR:XTAL_CM7V-T1A-32.768KHZ-12.5PF-100PPM-TB-QC | Y1 |
| 1 | I2C1 | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J12 |
| 1 | L7805CV | DPAK:TO252_AOS | U1 |
| 1 | LED | LED_SMD:LED_0201_0603Metric | D6 |
| 1 | MMBT2907A-TP | Package_TO_SOT_SMD:SOT-23-3 | Q2 |
| 1 | MP1476 | Package_TO_SOT_SMD:TSOT-23-6 | U2 |
| 1 | PORTA_IO | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical_SMD_Pin1Left | J6 |
| 1 | PORTB_IO | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J7 |
| 1 | PORTFIO | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | SF-0603SP400R-2 | Fuse:Fuse_0603_1608Metric_Pad1.05x0.95mm_HandSolder | F1 |
| 1 | SPI1 | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J10 |
| 1 | SPI2 | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J9 |
| 1 | STM32F042C4Tx | Package_QFP:LQFP-48_7x7mm_P0.5mm | U3 |
| 1 | T6N33CA | Diode_SMD:Vishay_SMPA | D1 |
| 1 | UART1_SYNC | Connector_JST:JST_PH_B4B-PH-K_1x04_P2.00mm_Vertical | J8 |
| 1 | UART2_ASYNC | Connector_JST:JST_PH_B3B-PH-K_1x03_P2.00mm_Vertical | J13 |
| 1 | USB4105-GF-A | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3 |
It measures 67.6 × 58.3 mm and has 4 copper layers, 1.6 mm thick.
73 parts, built around the L7805CV, 1SMA5929BT3G, AOD4185 and ACM70V-701-2PL-TL00. 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.
From the mirjunaid/STM32-DEVKIT repository on GitHub, at the commit this page was made from: the board is STM32_MICROCONTROLLER_BOARD/STM32_MICROCONTROLLER_BOARD.kicad_pcb and its schematic STM32_MICROCONTROLLER_BOARD/STM32_MICROCONTROLLER_BOARD.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask mirjunaid before reusing the design.

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