Fr80
FredericSegard
Z80 Homebrew computer, code-named Fre80, pronounced Freddy.
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FredericSegard
Z80 Homebrew computer, code-named Fre80, pronounced Freddy.
| U8 | 74HCT14 |
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| U9 | 74HCT573 |
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| U11 | Z84C0010 |
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| U12 | 74HCT148 |
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| U13 | ATF22V10C |
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| U14 | 74HCT174 |
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| U15 | 74HCT32 |
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| C1-C8,C11-C19 | 1µF |
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| C9,C10 | 0.47µF |
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| D1 | ~{INT} |
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| D2 | ~{ROM} |
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| D3 | ~{HLT} |
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| D4 | ~{BUS} |
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| D5 | TX 2 |
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| D6 | RX 2 |
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| D7 | TX 1 |
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| D8 | RX 1 |
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| J1 | COM 1 |
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| J2 | COM 2 |
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| J3 | CARD EDGE | Standard Card Edge Connectors 100 VRT 062DP |
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| R1,RN2,RN3 | 3K3 |
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| R2 | 2K2 |
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| R3 | 330 |
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| R4,RN1 | 220 |
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| X1 | 20 MHz |
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| X2 | 3.6864 MHz |
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