DB25CHEP-TAG
About the DB25CHEP-TAG PCB
DB25CHEP-TAG is an open source PCB design by silverstee1, published on GitHub under the Unlicense license. It is a 2-layer board measuring 54.6 × 26.1 mm, with 11 components from 9 distinct parts.
Other key parts include the AMS1117-3.3. By type, the board carries 4 resistors, 3 connectors, 2 capacitors, 1 IC and 1 diode.
It belongs with the usb & debug tools designs in this gallery.
From the project
Cheap DB25 Parallel Port JTAG Programmer for IDE-EXI, USB Gecko and other XC95XX CPLD projects
Used on Xilinx Webpack ISE software suite to program the CPLD, I use version 13.3 in windows XP but it should work with any version that still supports Parallel cable 3
When using with Xilinx Impact under cable options choose Parallel cable 3
USB-C is only to provide power to the 3.3V regulator for the programmer/CPLD, the R3 and R4 5.1kOhm Resistors can be left out if you'll only be using a USB-C to A cable, they're only necessary with a C to C cable.
Main components on the DB25CHEP-TAG
DB25CHEP-TAG bill of materials (BOM)
11 components, 9 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Conn_01x06 | PinHeader_1x06_P2.54mm_Vertical | J3 |
| 1 | Connector_USB_C_Receptacle_USB2.0 | TYPE-C-31-M-12 | J5 |
| 1 | LED | LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1 |
| 2 | 10uF Tantalum | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 1 | 4.7K | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1 |
| 1 | 10R | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2 |
| 2 | 5.1K | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3, R4 |
DB25CHEP-TAG design files
The KiCad project lives in the silverstee1/DB25CHEP-TAG repository on GitHub; these links point at the commit this page was built from.
- LayoutKicad/DB25CheapTag.kicad_pcb
- SchematicKicad/DB25CheapTag.kicad_sch
DB25CHEP-TAG: common questions
How big is the DB25CHEP-TAG PCB?
The DB25CHEP-TAG measures 54.6 × 26.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the DB25CHEP-TAG?
11 components, from 9 distinct parts. The full bill of materials is listed on this page.
Where can I download the DB25CHEP-TAG design files?
From the silverstee1/DB25CHEP-TAG repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the DB25CHEP-TAG design in my own project?
Yes, under the terms of its Unlicense license, which silverstee1 chose for the repository.
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