Claculator Display
About the Claculator Display PCB
Claculator Display is an open source PCB design by Robert-Mones, published on GitHub. It is a 4-layer board measuring 174 × 109 mm, with 160 components from 26 distinct parts.
Other key parts include the 74HC541, 74HC14, 74HC00, IS62C256AL and 74HC4020. By type, the board carries 89 transistors, 34 ICs, 25 capacitors, 11 connectors and 1 resistor.
It belongs with the displays & leds and retro computing designs in this gallery.
From the project
A reverse Polish notation calculator with added features such as comparisons, branching, and custom recursive operators taken from the Clac project from the 15-122 course at Carnegie Mellon University. The project is built around a 6502 microprocessor with a custom architecture to reduce CPU load by making peripherals operate asyncronously.
Main components on the Claculator Display
Claculator Display bill of materials (BOM)
160 components, 26 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 74HC541 | SOIC-20W_7.5x12.8mm_P1.27mm | U1, U2, U6 |
| 1 | 74HC14 | SOIC-14_3.9x8.7mm_P1.27mm | U3 |
| 1 | 74HC00 | SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 1 | IS62C256AL | SOIC127P1210X305-28N | U5 |
| 1 | 74HC4020 | SOIC-16_3.9x9.9mm_P1.27mm | U7 |
| 1 | 74HC4024 | SOIC-14_3.9x8.7mm_P1.27mm | U8 |
| 2 | 74HC154 | SOIC-24W_7.5x15.4mm_P1.27mm | U9, U10 |
| 1 | LD1086V33-DG | TO-220-3_Vertical | U11 |
| 16 | CC56-12EWA | CA56-12EWA | U12, U13, U18, U19, U20, U21, U22, U23 +8 |
| 7 | ~ | SOIC-16W_7.5x10.3mm_P1.27mm | U14, U15, U16, U17, U34, U35, U36 |
| 8 | PMOS | SOT-23P | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 81 | NMOS | SOT-23N | Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16 +73 |
| 1 | ~ | PinHeader_2x08_P2.54mm_Vertical | J1 |
| 2 | CONN_01X10_PIN Conn_01x10_Pin | PinHeader_2x05_P2.54mm_Vertical | J2, J3 |
| 1 | CONN_01X20_PIN Conn_01x20_Pin | PinHeader_1x20_P2.54mm_Vertical | J4 |
| 1 | Power Input | PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | CONN_01X16_PIN Conn_01x16_Pin | PinHeader_1x16_P2.54mm_Vertical | J6 |
| 1 | CONN_01X10_PIN Conn_01x10_Pin | PinHeader_1x10_P2.54mm_Vertical | J7 |
| 1 | CONN_01X11_PIN Conn_01x11_Pin | PinHeader_2x05_P2.54mm_Vertical | J8 |
| 1 | CONN_01X06_PIN Conn_01x06_Pin | PinHeader_2x03_P2.54mm_Vertical | J9 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | CONN_01X02_PIN Conn_01x02_Pin | PinHeader_1x02_P2.54mm_Vertical | J10, J11 |
| 2 | 10UF 10uF | C_1206_3216Metric | C1, C4 |
| 19 | 1UF 1uF | C_1206_3216Metric | C2, C5, C7, C8, C9, C10, C11, C12 +11 |
| 2 | 0.1UF 0.1uF | C_1206_3216Metric | C3, C6 |
| 2 | 100UF 100uF | CP_Elec_5x3 | C24, C25 |
| 1 | 10K | R_1206_3216Metric | R1 |
Claculator Display design files
The KiCad project lives in the Robert-Mones/Claculator repository on GitHub; these links point at the commit this page was built from.
Claculator Display: common questions
How big is the Claculator Display PCB?
The Claculator Display measures 174 × 109 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Claculator Display?
160 components, from 26 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 Claculator Display design files?
From the Robert-Mones/Claculator 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 Claculator Display design in my own project?
The repository has no license, so all rights stay with Robert-Mones. Use it as a reference, and ask the author before reusing the design.
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