ALU FLAGS CALC
Shmerlard·SH8·KiCad/ALU/ALU_FLAGS_CALC/ALU_FLAGS_CALC.kicad_pcb
About the ALU FLAGS CALC PCB
ALU FLAGS CALC is an open source PCB design by Shmerlard, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 48 components from 10 distinct parts.
Other key parts include the 74LS245, 74LS04, 74LS02 and 74LS08. By type, the board carries 16 diodes, 16 resistors, 8 connectors, 7 ICs and 1 switch.
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 ALU FLAGS CALC
ALU FLAGS CALC bill of materials (BOM)
48 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74LS245 | DIP-20_W7.62mm_Socket_LongPads | U1, U2 |
| 1 | 74LS04 | DIP-14_W7.62mm_Socket_LongPads | U3 |
| 2 | 74LS02 | DIP-14_W7.62mm_Socket_LongPads | U4, U5 |
| 2 | 74LS08 | DIP-14_W7.62mm_Socket_LongPads | U6, U7 |
| 3 | Conn_01x02_Socket | JST_XH_S2B-XH-A-1_1x02_P2.50mm_Horizontal | J1, J3, J8 |
| 4 | Conn_01x08_Socket | jst_xh_s8b_smd | J2, J5, J6, J7 |
| 1 | Conn_01x04_Socket | JST_XH_S4B-XH-A-1_1x04_P2.50mm_Horizontal | J4 |
| 1 | SW_SPDT | SW_Slide_SPDT_Angled_CK_OS102011MA1Q | SW1 |
| 16 | LED | LED_Rectangular_W3.0mm_H2.0mm | D1, D2, D3, D4, D5, D6, D7, D8 +8 |
| 16 | 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 +8 |
ALU FLAGS CALC design files
The KiCad project lives in the Shmerlard/SH8 repository on GitHub; these links point at the commit this page was built from.
ALU FLAGS CALC: common questions
How big is the ALU FLAGS CALC PCB?
The ALU FLAGS CALC measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the ALU FLAGS CALC?
48 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the ALU FLAGS CALC 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 ALU FLAGS CALC 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.
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