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SC108 v1.0 Z80 Processor for RC2014

8 months ago 767
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SC108 v1.0 (

Z80 Processor module for RC2014


  • 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





ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Mounted Mouser
1 10k R1,R2,R3,R4 AXIAL-0.3 4 Yes
2 RC2014 Male 39 P1 HDR-1X39-A-M-R-2.54MM 1 Yes
3 RC2014 Male 10 P1A HDR-1X10-S-M-2.54MM 1 Yes
4 100nF C1,C2,C3,C4,C5 CAP-RAD-2.54MM 5 Yes
5 470R R5 AXIAL-0.3 1 Yes
6 GRN-3MM LED1 LED-3MM/2.54 1 WP934AD/GD Kingbright Mouser Yes 604-WP934ADGD
7 7.3728MHz X1 OSC-08 1 Mouser Yes 774-MXO45HS-3C-7.3
8 1nF C6 CAP-RAD-2.54MM 1 Mouser Yes 594-K102K15X7RH53L2
9 DS1233-5+ U7 TO92 1 DS1233A-5+ Mouser Yes 700-DS1233-5
10 Z80 CPU U1 PDIP-40-0.6 1 Mouser Yes 692-Z84C0010PEG
11 74HCT138 U5 PDIP-16 1 Mouser Yes 595-SN74HCT138N
12 EPROM 27C256 U3 PDIP-28-0.6 1 Mouser Yes 556-AT27C256R-45PU
13 RAM 128k U2 PDIP-32-0.6 1 Mouser Yes 913-AS6C1008-55PCN
14 74HCT4075 U4 PDIP-14 1 Mouser Yes 595-CD74HCT4075E
15 74HCT74 U6 PDIP-14 1 Mouser Yes 595-SN74HCT74N




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