Board 326298-01 C64

326298-01

  • 5-pin board (CN5-Video port has 5 pins).
  • PCB Number 326298-01.
  • Schematic Number 326106.
  • The machines on display at the 1982 Winter Consumer Electronics Show in Las Vegas were Rev 6 boards. These machines were still classed as prototypes, and so it is unlikely that previous revisions will be found.
  • These early machines had many ceramic chips.

Integrated Circuits

PCB Identifier Chip NumberRemarks Memory Location/bit
U1 6526CIA 1$DC00-$DCFF
U26526CIA 2$DD00-$DDFF
U32364Basic ROM$A000-$BFFF
U42364Kernal ROM$E000-$FFFF
U52332Character ROM$D000-$DFFF
U62114L-30 SRAM 1Kx4$D800-$DBFF
U76510CPU
U87406Logic NOT (Hex Inverter)
U94164DRAM 64Kx1D1
U104164DRAM 64Kx1D3
U114164DRAM 64Kx1D5
U124164DRAM 64Kx1D7
U1374LS257Multiplexor
U1474LS258 Multiplexor
U1574LS139 Demultiplexor
U164066Quad Bilateral Switch
U1782S100 / 906114-01PLA
U186581SID$D400-$D7FF
U196567 (NTSC)/6569 (PAL)VIC-II $D000-$D3FF
U20LM556 Dual Timer
U214164DRAM 64Kx1D0
U224164DRAM 64Kx1D2
U234164DRAM 64Kx1D4
U244164DRAM 64Kx1D6
U2574LS257Multiplexor
U2674LS373Multiplexor
U2774LS08Logic AND
U284066Quad Bilateral Switch
U2974LS74Logic NOR (Divider)
U3074LS193Binary Counter
U3174LS629Oscillator
U32MC4044Logic (Phase Detector)

Schematics
326106-1
326106-2

Board Image
board 326298