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markadev
Reverse engineered Apple II products
| Reference | Value | Description |
|---|---|---|
| Q1 | 2N3906 | -0.2A Ic, -40V Vce, Small Signal PNP Transistor, TO-92 |
| U1 | Z85C3008PSC | SCC Serial Communication Controller, DIP-40 |
| U2 | 7405 | Inverter Open Collect |
| U3,U4 | AM26LS32 | RS485 Quad Line Receivers |
| U5 | 27512 | UV Erasable EPROM 512 KiBit, [Obsolete 2007-01] |
| U6,U7 | HY6264LP-10 | SRAM 64 KiBit (8Ki * 8) |
| U8,U9 |
| Dual Differential RS-422 Party Line Driver, MODE control pin low |
| U10 | G65SC02P-3 | 8-bit General Purpose Microprocessor, DIP-40 |
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| U11 | VGT7637-6104 |
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| U12,U14 | 74HCT157 | Quad 2 to 1 line Multiplexer |
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| U13 | 74LS125 | Quad buffer 3-State outputs |
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| U15 | 74CHCT175 | 4-bit D Flip-Flop, reset |
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| U16 | 74HCT20 | Dual 4-input NAND |
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| U17 | 74HCT244 | 8-bit Buffer/Line Driver 3-state |
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| U18 | 74LS373 | 8-bit Latch, 3-state outputs |
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| U19 | TL7705ACP | Supply-Voltage Supervisors, 4.55V, PDIP-8/SOIC-8 |
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| C1 | 22µ | Polarized capacitor, US symbol |
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| C4-C17,C19,C23-C26 | 0.1µ | Unpolarized capacitor |
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| C18 | 0.01µ | Unpolarized capacitor |
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| D1 | RED | Light emitting diode |
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| D2 | GREEN | Light emitting diode |
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| FB1 | FerriteBead | Ferrite bead, small symbol |
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| FL1,FL2 | 115-0002 | RC Network T-Filters, equivalent to Bourns 4120R-601-250/201; R=25Ω, C=200pF |
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| P2 | PB | Generic connector, double row, 02x05, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
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| P3 | PA | Generic connector, double row, 02x05, odd/even pin numbering scheme (row 1 odd numbers, row 2 even numbers), script generated (kicad-library-utils/schlib/autogen/connector/) |
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| R1,R2 | 820 | Resistor, US symbol |
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| R3 | 1k | Resistor, US symbol |
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| R4 | 100 | Resistor, US symbol |
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| R5 | 22 | Resistor, US symbol |
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| R8 | 47k | Resistor, US symbol |
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| R11 | 10k | Resistor, US symbol |
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| R12 | 680 | Resistor, US symbol |
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| R13,RP1,RP2 | 3.3k | 7 resistor network, star topology, bussed resistors, split,Resistor, US symbol |
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| Y1 | 3.6864 MHz | Two pin crystal |
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