4 layers107.6 × 59.8 mm
4 layers107.6 × 59.8 mm
TimeDisk
garrettsworkshop/TimeDisk19Apple II memory expansion card with 1 MB battery-backed RAM and NoSlotClock-compatible clock
- Size
- 107.6 × 59.8 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 70
- Nets
- 121
- Pads
- 397
- Tracks, vias
- 1,571, 704
- Pours
- 533
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 26 Jul 2019
- Updated
- 9 Aug 2024
Overview
TimeDisk is an open-source printed circuit board by garrettsworkshop, from the garrettsworkshop/TimeDisk repository on GitHub. It is a 4-layer board of 107.6 × 59.8 mm with 70 parts on 121 nets, routed with 1,571 tracks and 704 vias.
It is built around the CH340G, 74LVC04AD and 74LVC1G74DP, with the DS1315S-5+T&R, XC6206P332MR and 1N5819WS among its other parts. Its parts include 29 capacitors, 9 resistors, 8 ICs, 3 diodes and 3 connectors. It belongs with the FPGA and CPLD boards of this library.
Main components
8
CH340G
SOP-16-40℃~+85℃ 2Mbps 3.3V、5V USB 2.0 USB to UART SOP-16 USB Converters ROHSWCH (Nanjing Qinheng Microelectronics)USB Converters
74LVC04AD
SO-14-40℃~+125℃ 1 1.08V~2V 1.2V~3.6V 1.2V、1.8V、2.2V、2.2V、2.4V 120mV~800mV 24mA 24mA 4.5ns@3.3V,50pF 40uA 6 74LVC Schmitt trigger SO-14 Inverters ROHSNexperiaInverters
74LVC1G74DP
--40℃~+125℃ 1 1 1.1ns 1.65V~5.5V 100nA 1ns 2.5ns@5V,50pF 200MHz 24mA 24mA 4pF 74LVC Series Asynchronous Complementary type D-Type Rising Edge Set and Reset - Flip Flops ROHSNexperiaFlip Flops
DS1315S-5+T&R
SOIC-16-300mil0℃~+70℃ 4.5V~5.5V Backup power management and battery charging SOIC-16-300mil Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time Clocks
XC6206P332MR
SOT-23-40℃~+85℃@(Ta) 1 1uA 200mA 3.3V 6V Fixed Over Current Protection Positive SOT-23-3L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTorex SemiconductorVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
1N5819WS
SOD-3231 Independent 1A 25A 40V 500uA@40V 600mV@1A SOD-323 Schottky Diodes ROHSGuangdong HottechSchottky DiodesAO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
CR2032
-- Unclassified goods ROHSMaxellUncategorised
Parts
70| Qty | Value | Footprint | References |
|---|---|---|---|
| 26 | 2u2 | stdpads:C_0805 | C1, C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C26 +10 |
| 5 | stdpads:PasteHole_1.152mm_NPTH | H2, H3, H4, H5, H6 | |
| 5 | Fiducial | stdpads:Fiducial | FID1, FID2, FID3, FID4, FID5 |
| 3 | 4k7 | stdpads:R_0805 | R1, R2, R3 |
| 2 | 1N5819WS | stdpads:D_SOD-123 | D1, D2 |
| 2 | 22 | stdpads:R_0805 | R4, R5 |
| 2 | 22p | stdpads:C_0603 | C23, C24 |
| 2 | 680 | stdpads:R_0805 | R7, R8 |
| 2 | DNP | stdpads:R_0805 | R9, R10 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | stdpads:PasteHole_1.1mm_PTH | H1 | |
| 1 | 100n | stdpads:C_0603 | C25 |
| 1 | 12M | stdpads:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y2 |
| 1 | 32k768 | stdpads:Crystal_C26-LF_D2.1mm_L6.5mm_Horizontal | Y1 |
| 1 | 39F040 | stdpads:PLCC-32_SMDSocket | U5 |
| 1 | 6V8 | stdpads:D_SOD-323 | D3 |
| 1 | 74LVC04AD | stdpads:SOIC-14_3.9mm | U3 |
| 1 | 74LVC1G74DP | stdpads:NXP_TSSOP-8_3x3mm_P0.65mm | U8 |
| 1 | AO3401A | stdpads:SOT-23 | Q1 |
| 1 | AS6C8008 | stdpads:TSOP-II-44_400mil_P0.8mm | U4 |
| 1 | AppleIIBus | stdpads:AppleIIBus_Edge | J1 |
| 1 | CH340G | stdpads:SOIC-16_3.9mm | U7 |
| 1 | CR2032 | stdpads:Keystone_3034_2032 | BT1 |
| 1 | DS1315S-5 | stdpads:SOIC-16_7.5mm | U2 |
| 1 | EPM7128SL84 | stdpads:PLCC-84 | U1 |
| 1 | JTAG | stdpads:Header_2x5_Unshrouded_P1.27mm | J3 |
| 1 | Mode | stdpads:SW_DIP_SPSTx02_Slide_DSHP02TS_P1.27mm | SW1 |
| 1 | XC6206P332MR | stdpads:SOT-23 | U6 |
| 1 | microUSB | stdpads:USB_Micro-B_Amphenol_10118192-0001 | J2 |
Questions
How big is the TimeDisk PCB?
It measures 107.6 × 59.8 mm and has 4 copper layers, 1.61 mm thick.
What parts does the TimeDisk use?
70 parts, built around the CH340G, 74LVC04AD, 74LVC1G74DP and DS1315S-5+T&R. 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 TimeDisk KiCad files?
From the garrettsworkshop/TimeDisk repository on GitHub, at the commit this page was made from: the board is TimeDisk.kicad_pcb and its schematic Docs.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the TimeDisk design in my own project?
Its repository states no licence, so its author keeps all rights: ask garrettsworkshop before reusing the design.
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