2 layers170 × 63.6 mm
UzixLS zx multisound zx multisound
punkfab/pcb-corpus
235 real KiCad boards from open-source hardware repositories, prepared as a placement and routing benchmark
194 parts1
2 layers170 × 64 mm
Zx multisound
UzixLS/zx-multisound40ZX Spectrum soundcard for NEMOBUS/ZXBUS
- Size
- 170 × 64 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 200
- Nets
- 281
- Pads
- 952
- Tracks, vias
- 2,545, 598
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 2 Jun 2022
- Updated
- 17 Jun 2026
Overview
Zx multisound is an open-source printed circuit board by UzixLS, from the UzixLS/zx-multisound repository on GitHub, published under the MIT licence. It is a 2-layer board of 170 × 64 mm with 200 parts on 281 nets, routed with 2,545 tracks and 598 vias.
It is built around the EPM3256ATC144-10N, SAM2695 and 74AHCT1G125DBV, with the 74HCT245D, LM358D and AS6C4008-55SIN among its other parts. Its parts include 85 capacitors, 61 resistors, 22 ICs, 5 connectors and 2 crystals. It belongs with the retro computing and games and fPGA and programmable logic boards and the FPGA and CPLD boards of this library.
Main components
6
EPM3256ATC144-10N
TQFP-144(20x20)0℃~+70℃ 10ns 116 16 256 3V~3.6V 5000 In-system programming MAX 3000A Supports hot swap TQFP-144(20x20) Programmable Logic Device (CPLDs/FPGAs) ROHSIntel/AlteraProgrammable Logic Device (CPLDs/FPGAs)
SAM2695
QFN-48-EP_6x6-25℃~+70℃ 2.7V~3.6V Processor、Encoder/decoder QFN-48-EP(6x6) Audio Interface ICs ROHSDREAMAudio Interface ICs
74AHCT1G125DBV
SOT-23-5-40℃~+125℃ 1 1 10uA 4.5V~5.5V 5.5ns@5V,15pF 74AHCT 8mA 8mA Tri-State Unidirectional SOT-23-5 Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
74HCT245D
SO-20-300mil-40℃~+125℃ 1 12ns@4.5V,50pF 160uA 4.5V~5.5V 6mA 6mA 74HCT 8 Bidirectional Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers
LM358D
SOIC-8-16V~16V 0℃~+70℃ 2 3V~32V 40mA 45nA 5nA 700uA 70dB 7mV 7uV/℃ Built-in compensation、ESD protection SOIC-8 Operational Amplifier ROHSonsemiOperational Amplifier
AS6C4008-55SIN
SOP-32-11.3mm-40℃~+85℃ 2.7V~5.5V 4Mbit 4uA 55ns SOP-32-11.3mm SRAM ROHSAlliance MemorySRAM
README
README.mdZX-MultiSound
Sound card for ZX Spectrum (NemoBus).
Tech specs
- TurboSound FM (2xYM2203)
- General Sound (16MHz, 1024Kb of RAM)
- SAA1099 (use port #FF/#1FF to access SAA chip, write #F7/#FF to #FFFD port to enable/disable SAA)
- SounDrive (ports #0F, #1F, #4F, #5F)
- MIDI synthesizer (controlled via YM(AY) chip - compatible with ZX Spectrum 128K / ZXUNO)
- Low profile PCB: 170x64mm
- 5V and 12V power required
- 4x 1-bit digital DACs for GS and SounDrive
Changelog & current status
- Rev.A - first release. Please note the errata;
- Rev.A1 - fixed known rev.A issues. Please note the errata.
- Rev.A2:
- Fixed Z80 clocking - added buffer;
- Fixed 3.5mm jack footprint swapped left-right channels;
- Fixed misplaced R20 and R34 labels on silkscreen;
- 74LVC1G125DB replaced by 74AHCT1G125DB;
- C3,C5,C17,C18 slightly moved left;
- Added ledge on edge connector;
- Improved SAM2695 footprint for hand soldering. Sound card has been tested only with ZX Evolution. You can use it with another computer at your own risk.
Related projects
Parts
200| Qty | Value | Footprint | References |
|---|---|---|---|
| 39 | 100n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C15, C24, C25, C28, C48, C49, C50, C51, C52, C53, C54, C55, C56, C57, C58 +23 |
| 22 | 10u | Capacitor_SMD:CP_Elec_4x5.4 | C1, C2, C3, C5, C10, C11, C12, C13, C14, C16, C17, C18, C19, C21, C22, C23 +6 |
| 21 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R4, R15, R18, R20, R21, R24, R25, R32, R33, R38, R41, R51, R52, R53, R54 +5 |
| 14 | 47k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R6, R7, R12, R16, R17, R19, R26, R27, R30, R31, R42, R61, R62 |
| 10 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R22, R39, R43, R44, R45, R46, R47, R48, R49, R50 |
| 8 | 10n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C30, C31, C32, C43, C44, C45, C46, C47 |
| 7 | 10u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C26, C29, C33, C35, C37, C39, C41 |
| 6 | 24k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R13, R14, R28, R29, R34 |
| 6 | 3.3k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9, R10, R35, R36, R37 |
| 6 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3, TP4, TP5, TP6 |
| 3 | 100u/10V | Capacitor_Tantalum_SMD:CP_EIA-6032-28_Kemet-C_Pad2.25x2.35mm_HandSolder | C36, C38, C40 |
| 3 | 78M05 | Package_TO_SOT_SMD:TO-252-2 | U16, U17, U18 |
| 3 | LM358D | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1, U2, U7 |
| 2 | 100u/16V | Capacitor_SMD:CP_Elec_6.3x7.7 | C75, C76 |
| 2 | 1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U15, U19 |
| 2 | 2.2n | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C20, C27 |
| 2 | 22u | Capacitor_Tantalum_SMD:CP_EIA-3216-18_Kemet-A_Pad1.58x1.35mm_HandSolder | C34, C42 |
| 2 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23, R40 |
| 2 | 74AHCT1G125DB | Package_TO_SOT_SMD:SOT-23-5_HandSoldering | U21, U23 |
| 2 | AS6C4008-55SIN | Package_SO:SSOP-32_11.305x20.495mm_P1.27mm | U3, U9 |
| 2 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2, J3 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_2.7mm_M2.5_DIN965_Pad | H1, H2 |
| 2 | YM2203 | Package_DIP:DIP-40_W15.24mm_Socket | U4, U10 |
| 2 | YM3014B | Package_DIP:DIP-8_W7.62mm_Socket | U6, U12 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R60 |
| 1 | 27C512 | my:PLCC-32_11.4x14.0mm_P1.27mm-longpads | U11 |
| 1 | 27k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11 |
| 1 | 32MHz | my:Oscillator_SMD_7050_7.0x5.0mm | X1 |
| 1 | 74HCT245D | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U14 |
| 1 | ??MHz | my:Oscillator_SMD_7050_7.0x5.0mm | X2 |
| 1 | Conn_02x05_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J5 |
| 1 | Conn_02x30_Row_Letter_First | my:ZX_NEMO_60_EDGE | J4 |
| 1 | EPM3256ATC144 | PCM_Package_QFP_AKL:TQFP-144_20x20mm_P0.5mm | U8 |
| 1 | PJ307 | my:PJ-307 | J1 |
| 1 | SAA1099 | Package_DIP:DIP-18_W7.62mm_Socket | U20 |
| 1 | SAM2695 | my:QFN-48-1EP_6x6mm_P0.4mm_EP4.2x4.2mm | U13 |
| 1 | SW_DIP_x05 | Button_Switch_THT:SW_DIP_SPSTx05_Slide_6.7x14.26mm_W7.62mm_P2.54mm_LowProfile | SW1 |
| 1 | Z84C0020FEC | my:TQFP-44_14x14mm_P0.8mm | U5 |
| 1 | graphic | mygraphic:black-mage-12.5x8.6 | LOGO1 |
The 185 most common of 200 parts.
Similar boards
- 4 layers92.2 × 44 mm
Karabas megabuzz
andykarpov/karabas-megabuzz
A minimalistic FPGA soundcard for ZX Spectrum
177 parts9MIT - 2 layers
- 4 layers50 × 56 mm
Kicad - pcb
Radu734/Holocub-16x16x16-RGB-LED-CUBE
A 2 person project that we intend to win various informatics contests with.
19 parts2MIT - 2 layers213 × 65.1 mm
- 2 layers100 × 100 mm
Mist1010
UzixLS/mist1010-board
10x10cm PCB variant of MIST FPGA project for G738/G706 enclosure
273 parts43MIT - 2 layers99.6 × 99.6 mm
Karabas nano revJ
Vakon84/karabas-nano
ZX Spectrum compatible machine with real Z80 CPU and all logic inside the CPLD Altera EPM3256ATC144 (or EPM7512).
162 parts1WTFPL - 2 layers101.6 × 99.7 mm
Karabas nano karabas nano revB
PCBench/PCBench
resolution = [0.5, 0.5] pcbfolder = '../PCBs/' pcbnames = ["1Bitsy1bitsy"] iters = 30 env = PCBRoutingEnv(resolution=resolution, pcbfolder=pcbfolder, pcbnames=pcbnames) obs, info = env.reset() for in range(iters): act =…
147 parts21MIT
Questions
How big is the Zx multisound PCB?
It measures 170 × 64 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Zx multisound use?
200 parts, built around the EPM3256ATC144-10N, SAM2695, 74AHCT1G125DBV and 74HCT245D. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Zx multisound KiCad files?
From the UzixLS/zx-multisound repository on GitHub, at the commit this page was made from: the board is pcb/rev.A2/zx-multisound.kicad_pcb and its schematic pcb/rev.A/zx-multisound.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Zx multisound design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).