2 layers123.2 × 77.5 mm
2 layers123.2 × 77.5 mm
FMSoundGenerator
captainys/FM27Code for Fujitsu FM-7 and FM TOWNS series computers
- Size
- 123.2 × 77.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 134
- Pads
- 396
- Tracks, vias
- 2,488, 63
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 30 Nov 2019
- Updated
- 11 Aug 2026
Overview
FMSoundGenerator is an open-source printed circuit board by captainys, from the captainys/FM repository on GitHub. It is a 2-layer board of 123.2 × 77.5 mm with 58 parts on 134 nets, routed with 2,488 tracks and 63 vias.
It is built around the MC3303D, 74LS257PC and 2SC1815, with the 74HC27D, 74LS10PC and 74LS155PC among its other parts. Its parts include 18 capacitors, 14 resistors, 1 transistor and 1 connector.
Main components
10
MC3303D
SOP-14-1.5V~18V 0℃~+70℃ 10uV/℃ 2.8mA 2mV 30mA 30nA 36V 3V~36V 4 500nA 50pA/℃ 600V/ms 90dB SOP-14 Operational Amplifier ROHSonsemiOperational Amplifier
74LS257PC
DIP-160℃~+70℃ 12mA 2.6mA 24mA 27ns@5V,150pF 4.75V~5.25V 74LS Output enable high-impedance、Tri-state output DIP-16 Signal Switches, Multiplexers, DecodersTexas InstrumentsSignal Switches, Multiplexers, Decoders
2SC1815
SOT-23-55℃~+150℃ 1 NPN 100nA 130 150mA 200mW 250mV 50V 5V 80MHz NPN SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)74HC27D
SOP-14-40℃~+125℃ 1.5V~4.2V 1.9V~2V、3.98V~4.32V、4.4V~4.5V、5.48V~5.81V、5.9V~6V 100mV、100mV、100mV、260mV、260mV 18ns@4.5V,50pF 2V~6V 2uA 3 3 5.2mA 5.2mA 500mV~1.8V 74HC Series NOR Gate SOIC-14 Logic Gates ROHSNexperiaGates
74LS10PC
PDIP-140℃~+70℃ 3 3.3mA 4.75V~5.25V 74LS Series NAND Gate PDIP-14 Logic GatesonsemiLogic Gates74LS155PC
PDIP-160℃~+70℃ 35ns@5V,50pF 4.75V~5.25V 400uA 6.1mA 74LS 8mA Decoder Reverse function Single Supply PDIP-16 Signal Switches, Multiplexers, Decoders ROHSTexas InstrumentsSignal Switches, Multiplexers, Decoders74LS175PC
PDIP-160℃~+70℃ 1 10ns 18mA 25ns@5V,15pF 30MHz 4 4.75V~5.25V 5ns 74LS Series Asynchronous Complementary type D-Type Reset Rising Edge PDIP-16 Flip Flops ROHSTexas InstrumentsFlip Flops
74LS374PC
PDIP-200ns 0℃~+70℃ 1 20ns 28ns@5V,45pF 35MHz 4.75V~5.25V 45mA 74LS Series 8 D-Type Rising Edge Tri-State PDIP-20 Flip FlopsonsemiFlip Flops74LS74PC
DIP-140ns 0℃~+70℃ 1 2 20MHz 3.5pF 35ns@5V,50pF 4.5ns 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Complementary D-Type Rising Edge Set and Reset DIP-14 Flip FlopsTexas InstrumentsFlip Flops74LS86
DIP-14-20℃~+75℃ 10mA 2.7V 23ns@5V,15pF 2V 400mV 400uA 5V 74LS 800mV 8mA XOR Gate DIP-14 Logic Gates ROHSHITLogic Gates
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 0.1uF | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C1, C4, C10, C12, C14, C18, C19 |
| 3 | 320 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7, R8, R9 |
| 3 | 4.7uF 35V | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C5, C21, C23 |
| 2 | 1.2K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R15 |
| 2 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R13 |
| 2 | 10K | Resistor_THT:R_Array_SIP8 | RB1, RB2 |
| 2 | 22uF 16V | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C20, C22 |
| 2 | 4.7K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11, R12 |
| 2 | 74LS257 | Package_DIP:DIP-16_W7.62mm_Socket | M1, M3 |
| 2 | DB9_Male | Connector_Dsub:DSUB-9_Male_Vertical_P2.77x2.84mm_MountingHoles | JS0, JS1 |
| 2 | FCN32 | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | CNA1, CNB1 |
| 2 | SH | TestPoint:TestPoint_Plated_Hole_D3.0mm | H1, H2 |
| 1 | 1000pF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C15 |
| 1 | 100uF 6.3V | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C8 |
| 1 | 10uF 25V | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C17 |
| 1 | 130 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R16 |
| 1 | 1500pF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C11 |
| 1 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 1 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 2SC1815 | Transistors:NPN_Transistor | Q1 |
| 1 | 330pF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C13 |
| 1 | 33uF 10V | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C16 |
| 1 | 350 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R10 |
| 1 | 74HC27 | Package_DIP:DIP-14_W7.62mm_Socket | M11 |
| 1 | 74LS07 | Package_DIP:DIP-14_W7.62mm_Socket | M4 |
| 1 | 74LS08 | Package_DIP:DIP-14_W7.62mm_Socket | M14 |
| 1 | 74LS10 | Package_DIP:DIP-14_W7.62mm_Socket | M15 |
| 1 | 74LS155 | Package_DIP:DIP-16_W7.62mm_Socket | M2 |
| 1 | 74LS175 | Package_DIP:DIP-16_W7.62mm_Socket | M10 |
| 1 | 74LS244 | Package_DIP:DIP-20_W7.62mm_Socket | M6 |
| 1 | 74LS374 | Package_DIP:DIP-20_W7.62mm_Socket | M5 |
| 1 | 74LS74 | Package_DIP:DIP-14_W7.62mm_Socket | M9 |
| 1 | 74LS86 | Package_DIP:DIP-14_W7.62mm_Socket | M16 |
| 1 | 820 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R14 |
| 1 | FM/WHG | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | JP1 |
| 1 | MC3303 | Package_DIP:DIP-14_W7.62mm_Socket | M13 |
| 1 | RCA_Out | Audio Connectors:RCA Female | J1 |
| 1 | YM2203 | Package_DIP:DIP-40_W15.24mm_Socket | M7 |
| 1 | YM3014 | Package_DIP:DIP-8_W7.62mm_Socket | M12 |
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Questions
How big is the FMSoundGenerator PCB?
It measures 123.2 × 77.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the FMSoundGenerator use?
58 parts, built around the MC3303D, 74LS257PC, 2SC1815 and 74HC27D. 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 FMSoundGenerator KiCad files?
From the captainys/FM repository on GitHub, at the commit this page was made from: the board is 7/KiCAD/FMSound/FMSoundGenerator.kicad_pcb and its schematic TOWNS/KiCAD/AD-D15NEEquivalent/AD-D15NE/AD-D15NE.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the FMSoundGenerator design in my own project?
Its repository states no licence, so its author keeps all rights: ask captainys before reusing the design.