Rc cfcard
About the Rc cfcard PCB
Rc cfcard is an open source PCB design by PickledDog, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 99.1 × 49.9 mm, with 13 components from 11 distinct parts.
Other key parts include the 74AHCT138, 74HCT32 and 74HC245. By type, the board carries 4 capacitors, 3 ICs, 3 connectors, 2 resistors and 1 diode.
From the project
Buffered CompactFlash card for RC2014
My approach to handling this was informed by Bill Shen's posts in the retro-comp Google Group. My takeaways from these, were that: CS should be asserted a little before IORD and IOWR The data line transitions should be limited, either via 100Ω resistors (good), or a 74x245 bus transceiver (better) * CompactFlash is CMOS (not TTL), so said transceiver should be 74HC (not 74HCT)
Main components on the Rc cfcard
Rc cfcard bill of materials (BOM)
13 components, 11 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74AHCT138 | DIP-16_W7.62mm_LongPads | U1 |
| 1 | 74HCT32 | DIP-14_W7.62mm_LongPads | U2 |
| 1 | 74HC245 | DIP-20_W7.62mm_LongPads | U3 |
| 1 | RC2014 | PinHeader_1x39_P2.54mm_Vertical | J1 |
| 1 | RC2014_Enh | PinHeader_1x10_P2.54mm_Vertical | J2 |
| 1 | CF Socket | CF_Card_Socket_PTH | J3 |
| 1 | LED | LED_D3.0mm | D1 |
| 3 | 0.1uF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C3 |
| 1 | 10uF | C_Disc_D3.8mm_W2.6mm_P2.50mm | C4 |
| 1 | 330R | R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 1k | R_Array_SIP5 | RN1 |
Rc cfcard design files
The KiCad project lives in the PickledDog/rc-cfcard repository on GitHub; these links point at the commit this page was built from.
- Layoutrc-cfcard.kicad_pcb
Rc cfcard: common questions
How big is the Rc cfcard PCB?
The Rc cfcard measures 99.1 × 49.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Rc cfcard?
13 components, from 11 distinct parts. The full bill of materials is listed on this page.
Where can I download the Rc cfcard design files?
From the PickledDog/rc-cfcard repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Rc cfcard design in my own project?
Yes, under the terms of its Apache-2.0 license, which PickledDog chose for the repository.
