MDR Manager
Shmerlard·SH8·KiCad/Memory_Registers/MDR/MDR_Manager.kicad_pcb

About the MDR Manager PCB
MDR Manager is an open source PCB design by Shmerlard, published on GitHub. It is a 2-layer board, with 13 components from 7 distinct parts.
Other key parts include the 74LS139, 74LS04, 74LS245 and 74LS08. By type, the board carries 7 ICs and 6 connectors.
From the project
a custom 16bit cpu
hi, my name is elad and Im an electrical engineering student in Ben gurion university. I designed a small 16bit cpu, with a mix of jdh8, src, msp430 and the Hack computer. this is still a work in progress, but so far it works.
I used logisim for the logic design, draw.io for the diagrams. in order to see the working cpu in logisim: you need to build version 3.9.0 from source here, then just open the .circ file.
Main components on the MDR Manager
MDR Manager bill of materials (BOM)
13 components, 7 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS139 | DIP-16_W7.62mm_LongPads | U1 |
| 1 | 74LS04 | DIP-14_W7.62mm_Socket_LongPads | U2 |
| 4 | 74LS245 | DIP-20_W7.62mm_Socket_LongPads | U3, U4, U5, U6 |
| 1 | 74LS08 | DIP-14_W7.62mm_Socket_LongPads | U7 |
| 1 | Conn_01x02_Socket | JST_XH_S2B-XH-A-1_1x02_P2.50mm_Horizontal | J1 |
| 4 | Conn_01x08_Socket | JST_XH_S8B-XH-A-1_1x08_P2.50mm_Horizontal | J2, J3, J5, J6 |
| 1 | Conn_01x04_Socket | JST_XH_S4B-XH-A-1_1x04_P2.50mm_Horizontal | J4 |
MDR Manager design files
The KiCad project lives in the Shmerlard/SH8 repository on GitHub; these links point at the commit this page was built from.
MDR Manager: common questions
How big is the MDR Manager PCB?
The MDR Manager has 2 copper layers and is 1.6 mm thick.
How many components are on the MDR Manager?
13 components, from 7 distinct parts. The full bill of materials is listed on this page.
Where can I download the MDR Manager design files?
From the Shmerlard/SH8 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the MDR Manager design in my own project?
The repository has no license, so all rights stay with Shmerlard. Use it as a reference, and ask the author before reusing the design.
More boards in SH8
Register
Shmerlard
100 × 100 mm60 parts2LNo license18Instruction Register
Shmerlard
100 × 100 mm51 parts2LNo license18ALU FLAGS CALC
Shmerlard
100 × 100 mm48 parts2LNo license18Register File Manager
Shmerlard
100 × 100 mm41 parts2LNo license18Status Register
Shmerlard
100 × 100 mm40 parts2LNo license18Program Counter
Shmerlard
100 × 100 mm30 parts2LNo license18ALU Extra
Shmerlard
100 × 100 mm21 parts2LNo license18ALU Shifter
Shmerlard
100 × 100 mm15 parts2LNo license18ALU Main
Shmerlard
100 × 100 mm14 parts2LNo license18Condition Control
Shmerlard
100 × 100 mm12 parts2LNo license18