Xy register
About the Xy register PCB
Xy register is an open source PCB design by TomNisbet, published on GitHub under the MIT license. It is a 2-layer board measuring 102 × 96 mm, with 60 components from 30 distinct parts.
Other key parts include the 74HCT377, 74HCT245 and 74HCT157. By type, the board carries 22 diodes, 22 resistors, 6 ICs, 6 capacitors and 4 connectors.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
NQSAP 8-bit computer PCB version
A multi-PCB version of the NQSAP 8-bit computer
Visit the NQSAP-PCB documentation pages for detailed design notes and schematics.
Main components on the Xy register
Xy register bill of materials (BOM)
60 components, 30 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74HCT377 | DIP-20_W7.62mm | U1, U3 |
| 2 | 74HCT245 | DIP-20_W7.62mm | U2, U4 |
| 2 | 74HCT157 | DIP-16_W7.62mm | U5, U6 |
| 2 | Bus | PinHeader_1x40_P2.54mm_Vertical | J1, J2 |
| 1 | Conn_01x04 | PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | Conn_01x08 | PinHeader_1x08_P2.54mm_Vertical | J6 |
| 1 | X0 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | X1 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | X2 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D3 |
| 1 | X3 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D4 |
| 1 | X4 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D5 |
| 1 | X5 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D6 |
| 1 | X6 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D7 |
| 1 | X7 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D8 |
| 1 | Y0 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D9 |
| 1 | Y1 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D10 |
| 1 | Y2 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D11 |
| 1 | Y3 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D12 |
| 1 | Y4 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D13 |
| 1 | Y5 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D14 |
Show 10 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Y6 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D15 |
| 1 | Y7 | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D16 |
| 2 | READ | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D17, D18 |
| 2 | WRITE | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D19, D20 |
| 1 | DZ | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D21 |
| 1 | DY | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D22 |
| 6 | 0.1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3, C4, C5, C6 |
| 18 | R-RED | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 +10 |
| 2 | R-GN | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18 |
| 2 | R-YEL | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R21, R22 |
Xy register design files
The KiCad project lives in the TomNisbet/nqsap-pcb repository on GitHub; these links point at the commit this page was built from.
Xy register: common questions
How big is the Xy register PCB?
The Xy register measures 102 × 96 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Xy register?
60 components, from 30 distinct parts. The full bill of materials is listed on this page.
Where can I download the Xy register design files?
From the TomNisbet/nqsap-pcb repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Xy register design in my own project?
Yes, under the terms of its MIT license, which TomNisbet chose for the repository.
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