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List of unconnected pins
From SnesLab
According to the jwdonal schematic, several of the ICs on the SNES Motherboard appear to have pins that are not connected. Some of them are:
S-ENC
- pin 15, VA
- pin 18, PDO
- pin 17, PHA
S-SMP
- pins 18-34, P40-P57
- pin 17, P5RD
S-DSP
- pin 79, CK1
- pin 80, CK2
- pin 77, XCK
- pin 40, MCK
- pin 21, DIP
- pin 20, MA15
- pin 1, DKD
- pin 2, MXK
- pins 3-5, MX1-MX3
Stereo DAC
- pin 5, AGND
S-WRAM
- pin 55, G
S-PPU2
- pin 2, /PED
- pin 4, /TOUMEI
- pins 77-89, TST0-TST11
S-PPU1
- pin 46, VA15
S-CPU
- pins 19-24, JPIO0-JPIO5
- pins 38-29, JPOUT1-JPOUT2
- pin 70, /DMA
- pin 71, DMA
- pin 80, R/W
- pin 88, /ALCK
- pin 89, /VP
- pin 87, VDA
- pin 86, VPA
- pin 84, XF
- pin 83, MF
- pin 82, /ML
F411 CIC
- pin 5, NC
- pin 6, CL2
- pin 12, P12
- pin 13, P13
- pin 14, NC
- pin 15, P20
- pin 16, P21
- pin 17, P22
Hex Inverter
- pin 10
- pin 12
Fully Connected Components
These components appear to have no unconnected pins:
- voltage supervisor
- voltage regulator
- Multi-Out
- RF Modulator
- Front Panel Daughterboard
- Expansion Port
- Cartridge Slot
- both ARAM chips
- both VRAM chips