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BGA Pad Count Matrix

BGA Pin Counting - RF CafeThis matrix is based on information found on the Emulation Technology website.

To use this table, select the ball grid array size, e.g. 8x8, and then look in the column giving the number of rows of pads; e.g., 2, and the intersecting cell shows the number of balls (or pins). Referring to the drawing to the left, in this example, an 8x8 array with a 2 rows of balls has 16 balls along the top and bottom edges and 8 balls along each side, for a total of 48 balls.

Ball Pitch Code Table (mm)
1 = 1.50 3 = 1.00 5 = 0.50 7= 2.50 9= 0.65
2 = 1.27 4 = 0.75 6 = 0.80 8= 2.54  

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