2 layers170 × 105 mm
Ssio check
paulbruneau/ssio-check
A bench tester for the Bally/Midway MCR Sound I/O family: the 90908 Sound I/O and the 90913 / 91483 / 91657 Super Sound I/O (Z80, two AY-3-8910s, and all of the game's input ports).
72 parts
2 layers22 × 26.5 mm
- Size
- 22 × 26.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 15
- Nets
- 33
- Pads
- 67
- Tracks, vias
- 84, 15
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 2 Jun 2023
- Updated
- 2 Jun 2023
Overview
Strobe is an open-source printed circuit board by donpivo, from the donpivo/TurntableAccessories repository on GitHub. It is a 2-layer board of 22 × 26.5 mm with 15 parts on 33 nets, routed with 84 tracks and 15 vias.
It is built around the CD74HC4017E, MC74HC4060AD and BSS138. Its parts include 5 capacitors, 3 resistors, 2 ICs, 1 diode and 1 transistor.
Main components
3
CD74HC4017E
DIP-16-55℃~+125℃ 1 19ns 2V~6V 35MHz Asynchronous Decade Counter Rising Edge Synchronous Up Counter DIP-16 Counters, Dividers ROHSTexas InstrumentsCounters, Dividers
MC74HC4060AD
SOIC-16-55℃~+125℃ 1 250ns 2V~6V 500mW 50MHz 74HC Asynchronous Asynchronous Divide-by-2 Falling Edge Reset function、Low-power mode SOIC-16 Counters, Dividers ROHSonsemiCounters, Dividers
BSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETs
Parts
15| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 100nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C3 |
| 2 | 33pF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C5 |
| 1 | 10MΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 10µF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C6 |
| 1 | 220Ω | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 4.9152MHz | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | 47Ω | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | CD74HC4017 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U3 |
| 1 | LED | LED_THT:LED_D5.0mm | D1 |
| 1 | MC74HC4060 | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U1 |
| 1 | SW_SPDT | myDevices:Slide_switch_THT_SPDT | SW1 |
| 1 | USB_B_Micro | digikey-footprints:USB_Micro_B_Female_10118194-0001LF | J1 |
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Questions
How big is the Strobe PCB?
It measures 22 × 26.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Strobe use?
15 parts, built around the CD74HC4017E, MC74HC4060AD and BSS138. 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 Strobe KiCad files?
From the donpivo/TurntableAccessories repository on GitHub, at the commit this page was made from: the board is Strobe/Schematic/Strobe.kicad_pcb and its schematic Strobe/Schematic/Strobe.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Strobe design in my own project?
Its repository states no licence, so its author keeps all rights: ask donpivo before reusing the design.