C16 Assembly 250443-01

  • Released in 1984.
  • Targeted as a low cost replacement for the Vic-20.
  • Version: A
  • Schematic Number 251788.

Specs

  • CPU : 8501/7501 @ 0.885/1.76 MHz
  • RAM : 16kB DRAM (Upgradable to 64kB)
  • ROM : 32kB ROM Total - 16K BASIC, 14K Kernal, 2K Character
  • Graphics : TED 8360/7360
  • Sound : TED 8360/7360
  • Interfaces : 2 Control Ports, A/V, Datasette Port, Expansion Port, Serial IEC, TV RF, User Port
  • Keyboard : 66 Keys
  • Power Supply : External Transformer (9V DC)

Schematics

Fig. 1: C16 250443-01 Mainboard Fig. 2: C16 250443-01Layout

Capacitor List

Cap   -  Value  -  Rating - Type
C1    -  1uf    -   25v   - Radial
C2    -  47uf   -   25v   - Radial
C3    -  10uf   -   25v   - Radial
C4    -  10uf   -   25v   - Radial
C16   -  10uf   -   25v   - Radial
C17   -  1uf    -   16v   - Radial
C18   -  10uF   -   25v   - Radial
C19   -  10uf   -   25v   - Radial
C31   -  10uf   -   25v   - Radial

IC List

PCB ID Chip ID Notes
U1 8360/7360 TED
U2 8501/7501 Processor
U3 23128 ROM - Basic
U4 23128 ROM - Kernal
U5 4416 DRAM
U6 4416 DRAM
U7 74LS257 Multiplexor
U8 74LS257 Multiplexor
PCB ID Chip ID Notes
U9 7404N Hex Inverter Buffer
U10 555N Timer
U11 74LS125 Quad 3-State Buffer
U12 74LS02 Quad 2-Input NOR Gate
U13 6529B SPI
U15 74LS175 Quad D-Type Flip Flop
U16 251641-02 PLA

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