C128-bytewide color ram-1571cr expansion
About the C128-bytewide color ram-1571cr expansion PCB
C128-bytewide color ram-1571cr expansion is an open source PCB design by ytmytm, published on GitHub under the MIT license. It is a 2-layer board measuring 23.9 × 51.3 mm, with 7 components from 7 distinct parts.
Other key parts include the 2016-board, KM62256CLP, 2016 and 4066. By type, the board carries 4 ICs and 3 connectors.
It belongs with the retro computing designs in this gallery.
From the project
A daughterboard to expand C128/D/DCR color ram to 8 bits and/or to 32K OR expand internal 1571 RAM
This is a 24 to 28 pin adapter PCB that can be used for three different C128 modifications:
- widen 2K Color RAM to 8 bits (C128/C128D/C128DCR) - widen Color RAM to 8 bits and expand to 32K (C128/C128D/C128DCR) - RAM Expansion for 1571CR compatible with Maverick (C128DCR only)
PDF plot of the schematic can be found here.
kicad folder contains all the KiCad 6.0 project files.
Main components on the C128-bytewide color ram-1571cr expansion
C128-bytewide color ram-1571cr expansion bill of materials (BOM)
7 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 2016-board | DIP-24_W15.24mm | U1 |
| 1 | KM62256CLP | DIP-28_W15.24mm | U2 |
| 1 | 2016 | DIP-24_W15.24mm | U3 |
| 1 | 4066 | DIP-14_W7.62mm_Socket | U4 |
| 1 | A11_A14 | PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | AEC | PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | <- D4_D7 | PinHeader_1x04_P2.54mm_Vertical | J3 |
C128-bytewide color ram-1571cr expansion design files
The KiCad project lives in the ytmytm/c128-bytewide-color-ram-1571cr-expansion repository on GitHub; these links point at the commit this page was built from.
C128-bytewide color ram-1571cr expansion: common questions
How big is the C128-bytewide color ram-1571cr expansion PCB?
The C128-bytewide color ram-1571cr expansion measures 23.9 × 51.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the C128-bytewide color ram-1571cr expansion?
7 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the C128-bytewide color ram-1571cr expansion design files?
From the ytmytm/c128-bytewide-color-ram-1571cr-expansion repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the C128-bytewide color ram-1571cr expansion design in my own project?
Yes, under the terms of its MIT license, which ytmytm chose for the repository.
Similar boards
Amiga External
hoglet67
21.9 × 76.7 mm6 parts2LGPL-3.01.0k
Atari pickup
26.4 × 53.9 mm7 parts2LGPL-3.01.0k
Deniseadapter
26.7 × 62.2 mm16 parts2LGPL-3.01.0k
Analog
53.9 × 23.2 mm33 parts2LGPL-3.01.0k
Rgb to hdmi
77 × 97 mm67 parts2LGPL-3.01.0k
Buffer
53.9 × 23.2 mm13 parts2LGPL-3.01.0k