Practical Electronics/Device pinouts/CompactFlash cards

Key

 * GND Ground reference voltage
 * VCC Positive power rail. This can be either 3.3V or 5V.


 * D[15:0] Birdirectional data bus
 * A[10:0] Address bus
 * $\overline{CD1}$, $\overline{CE1}$ Card detect signals. These go low when a card is inserted into a socket.