ov7670 + Sd Card + arduino
This camera module requires the use of additional hardware, as the camera and Arduino operating frequencies differ, which can result in loss of synchronization and changes to the image, and other connection problems.

Thus, we must use an integrated circuit intermediary, making the connection between the camera and the Arduino. The function of this chip is to receive the camera information, store them and then send them to the Arduino using the digital doors, much faster than if we used the serial communication.

An example of an integrated circuit that could be used is AL422, suitable for treating a video signal, which also is embedded in some OV7670 modules.

Looking like the connection pins behave in 7670, your module should be equal to it. So spare pins to be able to make other necessary connections.



Would better check the connection through the datasheets:

7670 datasheet

AL422 datasheet

An example of project

But to answer your question; You'll need to purchase a piece more if you don't have AL442.

Regards,