FLASHv2
About the FLASHv2 PCB
FLASHv2 is an open source PCB design by KALTCHUK, published on GitHub. It is a 2-layer board measuring 99.7 × 69.9 mm, with 16 components from 11 distinct parts.
Other key parts include the 74LS04, 74LS85 and 74LS245. By type, the board carries 6 capacitors, 4 ICs, 4 connectors and 2 resistors.
It belongs with the retro computing designs in this gallery.
From the project
"Anyone who has brought up CP/M on a homebuilt computer has felt this moment of elation. A myriad of connections are properly closed; bits are flying at lightning speeds over busses and through circuits and program logic, to produce a single prompt". Gary Kildall
Main components on the FLASHv2
FLASHv2 bill of materials (BOM)
16 components, 11 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS04 | DIP-14_W7.62mm_Socket_LongPads | U1 |
| 1 | 74LS85 | DIP-16_W7.62mm_Socket_LongPads | U2 |
| 2 | 74LS245 | DIP-20_W7.62mm_Socket_LongPads | U3, U4 |
| 1 | card addr | PinHeader_2x04_P2.54mm_Vertical | J1 |
| 1 | Power Bus | PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | Signal Bus | PinHeader_2x20_P2.54mm_Vertical | J3 |
| 1 | IDE connector | PinHeader_2x22_P2.00mm_Vertical | J4 |
| 1 | 10uF | CP_Radial_D5.0mm_P2.50mm | C1 |
| 5 | 10nF | C_Disc_D3.8mm_W2.6mm_P2.50mm | C2, C3, C4, C5, C6 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 4x10k | R_Array_SIP5 | RN1 |
FLASHv2 design files
The KiCad project lives in the KALTCHUK/Z80_Modular_Computer repository on GitHub; these links point at the commit this page was built from.
FLASHv2: common questions
How big is the FLASHv2 PCB?
The FLASHv2 measures 99.7 × 69.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the FLASHv2?
16 components, from 11 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the FLASHv2 design files?
From the KALTCHUK/Z80_Modular_Computer repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the FLASHv2 design in my own project?
The repository has no license, so all rights stay with KALTCHUK. Use it as a reference, and ask the author before reusing the design.
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