Alu operand selector horizontal
lorenzonotaro·lncpu·v1/kicad/alu/alu_operand_selector/alu_operand_selector_horizontal.kicad_pcb
About the Alu operand selector horizontal PCB
Alu operand selector horizontal is an open source PCB design by lorenzonotaro, published on GitHub. It is a 2-layer board measuring 182.2 × 85.5 mm, with 29 components from 15 distinct parts.
Other key parts include the LNCPU Type B Header, 74HC138 and 74HCT541. By type, the board carries 11 capacitors, 10 ICs and 8 connectors.
From the project
v1 is the current implementation of the lncpu.
v1 is the current implementation of the lncpu.
The clock cycle is divided in two phases: Φ1 (control phase) and Φ2 (data phase).
During Φ1, the data bus contains the contents of [CS:PC]: only the device mapped to the memory section containing address CS:PC` is allowed to write to the data bus, regardless of control signals.
* During Φ2, bus control is determined by the control signals of the current microinstruction.

Main components on the Alu operand selector horizontal
Alu operand selector horizontal bill of materials (BOM)
29 components, 15 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LNCPU Type B Header | LNCPU_Type_B_Header | U1 |
| 1 | 74HC138 | DIP-16_W7.62mm_LongPads | U2 |
| 8 | 74HCT541 | DIP-20_W7.62mm_LongPads | U3, U4, U5, U6, U7, U8, U9, U10 |
| 1 | A_{in} | PinSocket_1x10_P2.54mm_Vertical | J1 |
| 1 | B_{in} | PinSocket_1x10_P2.54mm_Vertical | J2 |
| 1 | C_{in} | PinSocket_1x10_P2.54mm_Vertical | J3 |
| 1 | D_{in} | PinSocket_1x10_P2.54mm_Vertical | J4 |
| 1 | E_{in} | PinSocket_1x10_P2.54mm_Vertical | J5 |
| 1 | F_{in} | PinSocket_1x10_P2.54mm_Vertical | J6 |
| 1 | G_{in} | PinSocket_1x10_P2.54mm_Vertical | J7 |
| 1 | H_{in} | PinSocket_1x10_P2.54mm_Vertical | J8 |
| 1 | 47u | CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | 1u | CP_Radial_D4.0mm_P2.00mm-Large-Holes | C2 |
| 1 | 100n | C_Disc_D5.0mm_W2.5mm_P2.50mm | C3 |
| 8 | 220n | C_Disc_D5.0mm_W2.5mm_P2.50mm | C4, C5, C6, C7, C8, C9, C10, C11 |
Alu operand selector horizontal design files
The KiCad project lives in the lorenzonotaro/lncpu repository on GitHub; these links point at the commit this page was built from.
Alu operand selector horizontal: common questions
How big is the Alu operand selector horizontal PCB?
The Alu operand selector horizontal measures 182.2 × 85.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Alu operand selector horizontal?
29 components, from 15 distinct parts. The full bill of materials is listed on this page.
Where can I download the Alu operand selector horizontal design files?
From the lorenzonotaro/lncpu repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Alu operand selector horizontal design in my own project?
The repository has no license, so all rights stay with lorenzonotaro. Use it as a reference, and ask the author before reusing the design.
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