2 layers106.7 × 34.3 mm
Ezoflash cross adapter
robsonsmartins/usbflashprog
A memory device programmer (Flash/EPROM/E2PROM) board and software, connected to PC by USB port.
8 parts36
2 layers148.8 × 132.2 mm
Usbflashprog
robsonsmartins/usbflashprog36A memory device programmer (Flash/EPROM/E2PROM) board and software, connected to PC by USB port.
- Size
- 148.8 × 132.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 125
- Nets
- 146
- Pads
- 549
- Tracks, vias
- 1,946, 205
- Pours
- 25
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 19 Apr 2022
- Updated
- 14 Mar 2024
Overview
Usbflashprog is an open-source printed circuit board by robsonsmartins, from the robsonsmartins/usbflashprog repository on GitHub. It is a 2-layer board of 148.8 × 132.2 mm with 125 parts on 146 nets, routed with 1,946 tracks and 205 vias.
It is built around the 74HC595, 74HC165D and BC547, with the BC557, BC327 and 1N4733A among its other parts. Its parts include 52 resistors, 18 capacitors, 16 diodes, 16 transistors and 12 ICs. It belongs with the interfaces and adapters boards and the RP2040 boards of this library.
Main components
9
74HC595
SOP-16-40℃~+85℃ 1 100ns@5V,50pF 10MHz 2V~6V 74HC 8 Serial-to-Serial or Parallel Tri-State SOP-16 Shift Registers ROHSGRShift Registers
74HC165D
SO-16-40℃~+125℃ 1 28ns@6V,50pF 2V~6V 35MHz 500mW 74HC 8 Parallel or Serial to Serial SOIC-16 Shift Registers ROHSNexperiaShift Registers
BC547
TO-92Bipolar (BJT)Jiangsu Changjing Electronics Technology (CJ)BC557
TO-921 PNP 100mA 100nA 150MHz 45V 500mW 6V 800 90mV、250mV PNP TO-92 Bipolar (BJT) ROHSDDFBipolar (BJT)BC327
TO-921 PNP 100MHz 45V 5V 625mW 630 700mV 800mA PNP TO-92 Bipolar (BJT) ROHSDDFBipolar (BJT)
1N4733A
DO-41-65℃~+200℃ 10uA@1V 1W 4.845V~5.355V 5.1V 550Ω 7Ω Independent DO-41 Zener Diodes ROHSonsemiZener Diodes
BAT46
DO-35Schottky DiodesSTMicroelectronics1N4743A
DO-41-65℃~+200℃ 1 Independent 10Ω 13V 1W 5uA@9.9V 700Ω ±5% DO-41 Zener Diodes ROHSLGEZener Diodes
TIP120
TO-220-55℃~+150℃ 200uA 2V@3A,12mA 2W 5A 5V 60V NPN TO-220 Darlington Transistors ROHSJiangsu Changjing Electronics Technology (CJ)Darlington Transistors
README
hardware/README.md
USB Flash/EPROM Programmer
A memory device programmer (Flash/EPROM/E2PROM) board and software, connected to PC by USB port.
Hardware Design
Schematic Diagram
The most up-to-date schematic diagram can be accessed here: Schematic diagram of the USB Flash/EPROM Programmer.
Bill of Materials (BOM)
The most up-to-date BOM can be accessed here: Bill of Materials of the USB Flash/EPROM Programmer.
Software versions
The following CAD software (opensource and multiplatform) was used to draw the schematic diagram and PCB:
- Kicad, version 7.0.5.
Parts
125| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | 2K2 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R5, R12, R13, R18, R25, R26, R27, R28, R33, R35, R37, R38, R39, R42, R49 +3 |
| 13 | 100nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C3, C5, C7, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18 |
| 10 | 4K7 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R4, R17, R19, R23, R24, R29, R30, R31, R44, R46 |
| 8 | 1N4148 | Diode_THT:D_DO-34_SOD68_P7.62mm_Horizontal | D9, D12, D13, D14, D15, D16, D17, D18 |
| 7 | 1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3, R8, R22, R43, R45, R47, R48 |
| 6 | 74HC595 | Package_DIP:DIP-16_W7.62mm | U4, U5, U6, U7, U9, U10 |
| 6 | BC547 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q1, Q12, Q13, Q14, Q15, Q16 |
| 5 | 100R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2, R11, R15, R40, R51 |
| 5 | 470R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R9, R21, R34, R36, R41 |
| 5 | BC557 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q7, Q8, Q9, Q10, Q11 |
| 4 | BC327 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q2, Q3, Q4, Q6 |
| 3 | , , | ||
| 2 | 10K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R14, R32 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C1, C2 |
| 2 | 1N4733A | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D8, D19 |
| 2 | 74HC165 | Package_DIP:DIP-16_W7.62mm | U11, U12 |
| 2 | 74LS06N | Package_DIP:DIP-14_W7.62mm | U2, U8 |
| 2 | BAT46 | Diode_THT:D_DO-34_SOD68_P7.62mm_Horizontal | D7, D11 |
| 1 | 100uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C8 |
| 1 | 100uH | Inductor_THT:L_Toroid_Vertical_L13.0mm_W6.5mm_P5.60mm | L1 |
| 1 | 1N4743A | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D20 |
| 1 | 220R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R16 |
| 1 | 22uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C6 |
| 1 | 300uH | Inductor_THT:L_Toroid_Vertical_L13.0mm_W6.5mm_P5.60mm | L2 |
| 1 | 330R | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R10 |
| 1 | 3K9 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R20 |
| 1 | 470uF | Capacitor_THT:CP_Radial_D8.0mm_P3.80mm | C4 |
| 1 | 560R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R52 |
| 1 | GND | TestPoint:TestPoint_THTPad_2.5x2.5mm_Drill1.2mm | TP2 |
| 1 | GREEN | LED_THT:LED_D3.0mm | D3 |
| 1 | MT3608 Module | DC2DC_Modules:MT3608_module | U1 |
| 1 | Parallel Adapter | Connector_PinSocket_2.54mm:PinSocket_2x24_P2.54mm_Vertical | J2 |
| 1 | Pico | MCU_RaspberryPi_and_Boards:RPi_Pico_SMD_TH | U3 |
| 1 | RED | LED_THT:LED_D3.0mm | D6 |
| 1 | Serial Adapter | Connector_PinSocket_2.54mm:PinSocket_2x10_P2.54mm_Vertical | J3 |
| 1 | TIP120 | Package_TO_SOT_THT:TO-220-3_Vertical | Q5 |
| 1 | VDD | TestPoint:TestPoint_THTPad_2.5x2.5mm_Drill1.2mm | TP1 |
| 1 | VPP | TestPoint:TestPoint_THTPad_2.5x2.5mm_Drill1.2mm | TP3 |
| 1 | YELLOW | LED_THT:LED_D3.0mm | D10 |
The 124 most common of 125 parts.
Questions
How big is the Usbflashprog PCB?
It measures 148.8 × 132.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Usbflashprog use?
125 parts, built around the 74HC595, 74HC165D, BC547 and BC557. 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 Usbflashprog KiCad files?
From the robsonsmartins/usbflashprog repository on GitHub, at the commit this page was made from: the board is hardware/usbflashprog.kicad_pcb and its schematic hardware/adapters/ezoflash-cross/ezoflash-cross_adapter/ezoflash-cross_adapter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Usbflashprog design in my own project?
Its repository states no licence, so its author keeps all rights: ask robsonsmartins before reusing the design.
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