3
1
Back

Altera BGA-256 M256 MBGA BGA-256, dimensions: https://www.xilinx.com/support/documentation/package_specs/ft256.pdf, design rules: https://www.xilinx.com/support/documentation/user_guides/ug1099-bga-device-design-rules.pdf Altera UBGA U324 BGA-324 BGA-624, 25x25 grid, 21x21mm package, pitch 0.4mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for ECP5 FPGAs, based on the mid surdos.

Examples

Key

REP
Repique
CAX
Caixa
MSD
Mid surdo(s)
BSD
Back surdo (L for low, H for high R/L: accented note (right/left hand suggested)
r/l
Quieter, unaccented note
*
A trill, generally three very fast notes on repique/caixa, two or three for surdos Add schematic, start on PCB sandwich, making some final-ish decisions about connecting.

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