2 layers99.1 × 49.9 mm
2 layers99.1 × 49.9 mm
Rc cfcardh
PickledDog/rc-cfcard7Buffered CompactFlash card for RC2014
- Size
- 99.1 × 49.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 86
- Pads
- 163
- Tracks, vias
- 200, 18
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 2 Dec 2020
- Updated
- 6 Jul 2021
Overview
Rc cfcardh is an open-source printed circuit board by PickledDog, from the PickledDog/rc-cfcard repository on GitHub, published under the Apache-2.0 licence. It is a 2-layer board of 99.1 × 49.9 mm with 17 parts on 86 nets, routed with 200 tracks and 18 vias.
It is built around the 74HC245D, 74AHCT138D and 74HCT32D. Its parts include 4 capacitors, 3 ICs, 3 connectors, 1 resistor and 1 diode.
Main components
3
74HC245D
SO-20-300mil-40℃~+125℃ 1 160uA 2V~6V 7.8mA 7.8mA 74HC 8 9ns@4.5V,50pF Bidirectional Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffers, Drivers, Receivers, Transceivers
74AHCT138D
SO-16-40℃~+125℃ 3/8 4.5V~5.5V 6.2ns@5V,50pF 74AHCT 80uA 8mA 8mA Decoder Single Supply SO-16 Signal Switches, Multiplexers, Decoders ROHSNexperiaSignal Switches, Multiplexers, Decoders
74HCT32D
SO-14-40℃~+125℃ 2 24ns@4.5V,50pF 2V 2uA 3.7V、4.4V 4 4.5V~5.5V 400mV 4mA 4mA 74HCT Series 800mV OR Gate SOIC-14 Logic Gates ROHSNexperiaGates
README
rc-cfcardh/README.mdrc-cfcardh
Buffered CompactFlash card for RC2014, female header version
Overview
Want something easier to solder, or just prefer the CompactFlash socket to be above the other RC2014 boards? This variant of rc-cfcard uses a female IDE header (and IDE-to-CF adapter) instead of a directly-mounted CF socket. It is otherwise the same as the primary design; refer to the main project for anything not covered here.
Part selection
Bill Of Materials and part references are below. The LED and its resistor can be considered optional, since IDE-to-CF adapters usually have an activity LED of their own. Said adapter can be sourced from eBay - the board is designed for this style of adapter:
| Reference | Value | Qty | Mouser link |
|---|---|---|---|
| C1-C3 | 100nF ceramic | 3 | KEMET C315C104M5U5TA |
| C4 | 10μF ceramic | 1 | TDK FG18X5R1E106MRT06 |
| D1 | 3mm red LED | 1 | Lite-On LTL-4221N |
| J1/2 | 2x40 right-angle header | 1 | 3M 2380-5121TG |
| J3 | 2x22 female header (2mm) | 1 | Samtec SQT-122-01-F-D-RA |
| R1 | 470Ω resistor | 1 | Yageo CFR-25JT-52-470R |
| RN1 | Bussed 1kΩ×4 resistor | 1 | Bourns 4605X-AP1-102LF |
| U1 | 74AHCT138 | 1 | TI SN74AHCT138N |
| U2 | 74HCT32 | 1 | TI SN74HCT32N |
| U3 | 74HC245 | 1 | TI SN74HC245N |
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1uF | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C3 |
| 2 | MountingHole_2.7mm_M2.5 | MountingHole:MountingHole_2.7mm_M2.5 | MNT1, MNT2 |
| 1 | Mounting_Holes:MountingHole_3.2mm_M3 | ||
| 1 | 10uF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C4 |
| 1 | 1k | Resistor_THT:R_Array_SIP5 | RN1 |
| 1 | 470R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 74AHCT138 | Package_DIP:DIP-16_W7.62mm_LongPads | U1 |
| 1 | 74HC245 | Package_DIP:DIP-20_W7.62mm_LongPads | U3 |
| 1 | 74HCT32 | Package_DIP:DIP-14_W7.62mm_LongPads | U2 |
| 1 | IDE 44pin | Connector_PinSocket_2.00mm:PinSocket_2x22_P2.00mm_Horizontal | J3 |
| 1 | LED | LED_THT:LED_D3.0mm | D1 |
| 1 | RC2014 | Connector_PinHeader_2.54mm:PinHeader_1x39_P2.54mm_Vertical | J1 |
| 1 | RC2014_Enh | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J2 |
The 16 most common of 17 parts.
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Questions
How big is the Rc cfcardh PCB?
It measures 99.1 × 49.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rc cfcardh use?
17 parts, built around the 74HC245D, 74AHCT138D and 74HCT32D. 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 Rc cfcardh KiCad files?
From the PickledDog/rc-cfcard repository on GitHub, at the commit this page was made from: the board is rc-cfcardh/rc-cfcardh.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rc cfcardh design in my own project?
Its repository publishes it under the Apache-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).