KEY64D SC35

KEY64D_SC35 Keymatrix Daughterboard

Features:

• 64 inputs
• no ghosting as each input is diode protected
• connectors: screw clamp terminals, 3.5mm spaced
• board size: 100x160mm (euro size)

History:
This board actually predates the PHCC motherboard. It was designed for a pre-PHCC keymatrix input prototype.

Schematic and Layout

Rev.1 Schematic

Rev.1 Layout

Bill of Materials

The BOM is here: bom_key64d_sc35.txt
This list includes prices and links to to online catalogue pages of my primary source of electronics components, Reichelt Elektronik