IDE to CompactFlash (CF) adapter schematic

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hard disks cables wiring 40 pin IDC female connector layout 40 pin IDC female connector to the cable

50 pin CompactFlash female connector diagram 50 pin CompactFlash female connector to the cable

IDE-Signal IDE-Pin Connect to CF-Signal CF-Pin CF-Pin CF-Signal Connect to IDE-Pin IDE-Signal
- - GND GND 1 26 -CD1 nc - -
D03 11 IN D03 2 27 D11 OUT 10 D11
D04 9 IN D04 3 28 D12 OUT 12 D12
D05 7 IN D05 4 29 D13 OUT 14 D13
D06 5 IN D06 5 30 D14 OUT 16 D14
D07 3 IN D07 6 31 D15 OUT 18 D15
-CS0 37 IN -CE1 7 32 -CE2 OUT 38 -CS1
- - GND A10 8 33 -VS1 GND - -
- - GND -OE 9 34 -IORD OUT 25 -IOR
- - GND A09 10 35 -IOWR OUT 23 -IOW
- - GND A08 11 36 -WE nc - -
- - GND A07 12 37 -RDY/ -BSY/ -IREQ OUT 31 INTRQ/IRQ14
- - Vcc Vcc 13 38 Vcc Vcc - -
- - GND A06 14 39 -CSEL -Master/ Slave - -
- - GND A05 15 40 -VS2 nc - -
- - GND A04 16 41 -Reset OUT 1 -Reset
- - GND A03 17 42 -WAIT OUT 27 IOCHRDY
A02 36 IN A02 18 43 -INPACK nc - -
A01 33 IN A01 19 44 -REG Vcc - -
A00 35 IN A00 20 45 BVD2 LED * 39 -Active
D00 17 IN D00 21 46 BVD1 OUT 34 reserved
D01 15 IN D01 22 47 D08 OUT 4 D08
D02 13 IN D02 23 48 D09 OUT 6 D09
-IOCS16 32 IN WP/-IOCS16 24 49 D10 OUT 8 D10
- - nc -CD2 25 50 GND GND - -

Notes

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  • LED via 1KOhm to Vcc
  • Tip how to know which keys are 1-25 and 26-50:
    • It is known that CF keys 1, 25, 26, 50 is grounded (still mirror riddle) and only one more grounded key 33 is answer. If you look picture how Female connector looks, then key 33 is 8th hole from left in upper-row. Now just get a chain-link using your resistance-tester for any key 1, 25, 26 or 50 to this 8ght hole by turning CF card upsidedown. When you got link, then you know where is key 33, so left is 26, right is 50 and down-left is 1 and down-right is 25. Note: use picture from this side for pin assigment.

References

Category:Data Storage Cables

 

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