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Std edition SC108 v1.1 Processor for RC2014

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Published Time: 2021-10-11 18:22:44
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Description

SC108 v1.1 (www.scc.me.uk)

Z80 Processor module for RC2014

Features:

  • Z80 CPU
  • 128k bytes RAM (second 64k not easy to use!)
  • 32k bytes ROM
  • Oscillator 7.3728 MHz
  • Reset (using DS1233-5)
  • Software compatible with standard RC2014 modules
  • Runs Small Computer Monitor v1.0 configuration R3
  • Add serial module (SIO or 68B50) for Monitor and BASIC
  • Add Compact Flash module for CP/M
  • Indicator to show if ROM or RAM is paged in

Documentation and firmware at www.scc.me.uk

Version fixes the oscillator enable pin issue.

design drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 10k R1,R2,R3,R4 AXIAL-0.3 4
2 RC2014 Male 39 P1 HDR-1X39-A-M-R-2.54MM 1
3 RC2014 Male 10 P1A HDR-1X10-S-M-2.54MM 1
4 100nF C1,C2,C3,C4,C5 CAP-RAD-2.54MM 5
5 470R R5 AXIAL-0.3 1
6 GRN-3MM LED1 LED-3MM/2.54 1
7 7.3728MHz X1 OSC-08 1
8 1nF C6 CAP-RAD-2.54MM 1
9 DS1233-5+ U7 TO92 1
10 Z80 CPU U1 PDIP-40-0.6 1
11 74HCT138 U5 PDIP-16 1
12 EPROM 27C256 U3 PDIP-28-0.6 1
13 RAM 128k U2 PDIP-32-0.6 1
14 74HCT4075 U4 PDIP-14 1
15 74HCT74 U6 PDIP-14 1

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