Address Decode
About the Address Decode PCB
Address Decode is an open source PCB design by Synthron, published on GitHub. It is a 4-layer board measuring 83.3 × 68.2 mm, with 28 components from 17 distinct parts.
Other key parts include the 74HC14, 74HC00, 74LS20, DS1501YZ and 74LS393. By type, the board carries 11 capacitors, 7 ICs, 4 resistors, 2 crystals, 2 connectors and 1 battery holder.
It belongs with the retro computing designs in this gallery.
From the project
Yet another 8bit Retro Computer
Completely bloated, overkill and fully hackable!
- [x] Finish Hardware - Software - [ ] WozMon - [x] Implement Serial IO - [x] Implement Input Buffer - [ ] extended for block write - [ ] Kernel Functions - [ ] General SysCalls - [ ] Hardware Drivers - [x] RAM-Kernel - [x] Basic - [x] EhBasic - [ ] File System - [ ] Operating System - Hardware - [ ] order PCBs - [ ] order parts - [ ] solder together
Main components on the Address Decode
Address Decode bill of materials (BOM)
28 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74HC14 | DIP-14_W7.62mm_LongPads | U1 |
| 1 | 74HC00 | DIP-14_W7.62mm_LongPads | U2 |
| 1 | 74LS20 | DIP-14_W7.62mm_LongPads | U3 |
| 1 | DS1501YZ | SOP-28_8.4x18.16mm_P1.27mm | U4 |
| 1 | 74LS393 | DIP-14_W7.62mm_LongPads | U5 |
| 1 | 74HC138 | DIP-16_W7.62mm_LongPads | U6 |
| 1 | 74HC688 | DIP-20_W7.62mm_LongPads | U7 |
| 1 | 8MHz | Oscillator_DIP-14 | X1 |
| 1 | G33270007 | Crystal_SMD_FrontierElectronics_FM206 | Y1 |
| 1 | Bus_PCI_6502 | BUS_PCI | J1 |
| 1 | Clock_Sel | PinHeader_2x11_P2.54mm_Horizontal | J2 |
| 1 | CR2032 | BatteryHolder_Keystone_3002_1x2032 | BT1 |
| 1 | Manual_Clock | SPST_Edge | SW1 |
| 10 | 100n | C_0805_2012Metric | C1, C2, C3, C4, C5, C6, C7, C8 +2 |
| 1 | 10µ | CP_Radial_D5.0mm_P2.50mm | C11 |
| 2 | 1k | R_0805_2012Metric | R1, R2 |
| 2 | 10k | R_0805_2012Metric | R3, R4 |
Address Decode design files
The KiCad project lives in the Synthron/S65 repository on GitHub; these links point at the commit this page was built from.
Address Decode: common questions
How big is the Address Decode PCB?
The Address Decode measures 83.3 × 68.2 mm, has 4 copper layers and is 2.6062 mm thick.
How many components are on the Address Decode?
28 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Address Decode design files?
From the Synthron/S65 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Address Decode design in my own project?
The repository has no license, so all rights stay with Synthron. Use it as a reference, and ask the author before reusing the design.
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