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computerguy096
| Reference | Value | Description |
|---|---|---|
| Q1 | BC547 | 0.1A Ic, 45V Vce, Small Signal NPN Transistor, TO-92 |
| U1 | 8288 | Bus controller |
| U2,U10,U11,U22 | 74LS245 | Octal BUS Transceivers, 3-State outputs |
| U3 | 74LS27 | Triple 3-input NOR |
| U4 | 74S04 | Hex Inverter |
| U5 | 8284 | Clock generator |
| U6,U59,U90 | 74LS00 | quad 2-input NAND gate |
| U7,U8,U18 | 74LS373 | 8-bit Latch, 3-state outputs |
| U9,U13-U16 | 74LS244 | Octal Buffer and Line Driver With 3-State Output, active-low enables, non-inverting outputs |
| U12 | 74S280 | Parity Generator/Checker |
| U17 | 74LS670 | 4 x 4 Register Files 3-State Outputs |
| U19 | 74LS07 | Hex Buffers and Drivers With Open Collector High Voltage Outputs |
| U20 | 74LS175 | 4-bit D Flip-Flop, reset |
| U21 | 74LS92 | Divide by 12 counter |
| U23 | 8087 | Math Coprocessor for Intel 8086/8088/80186/80188 microprocessors, PDIP-40 |
| U24 | 8088 | 8088 (maximum mode), 8-Bit HMOS Microprocessor, PDIP-40 |
| U25-U27 | 27256 | UV Erasable EPROM 256 KiBit, [Obsolete 2000-11] |
| U28 | 8237 | Programmable DMA Controller, PDIP-40 |
| U29 | 8255A | Programmable Peripheral Interface, PDIP-40 |
| U30 | 74LS322 | 8-bit shift register, sign extend, 3-state outputs |
| U31 | PAL R6 | Programmable Logic Array, DIP-20/SOIC-20/PLCC-20 |
| U32 | 74S20 | Dual 4-input NAND |
| U33-U41,U46-U54 | 41256 | 262144 x 1 bit Dynamic RAM, 100/120/150ns access time, single 5V ±10% power supply, TTL compatible inputs, DIP-16 |
| U42 | PAL16L8 | Programmable Logic Array, DIP-20/SOIC-20/PLCC-20 |
| U43,U76 | 74LS74 | Dual D Flip-flop, Set & Reset |
| U44,U93 | 74S74 | Dual D Flip-flop, Set & Reset |
| U45,U73 | 74LS04 | Hex Inverter |
| U55,U56 | 74S158 | Quad 2 to 1 multiplexer |
| U57 | 8259A | 8259, Programmable Interrupt Controller, PDIP-28 |
| U58 | 8253 | Programmable Interval Timer, PDIP-24 |
| U60 | 74LS10 | Triple 3-input NAND |
| U61 | 74LS14 | Hex inverter schmitt trigger |
| U62-U70,U78-U86 | MK4164N | 65536 x 1 bit Dynamic RAM, 120/150ns access time, single 5V ±10% power supply, TTL compatible inputs, DIP-16 (Epoxy/Plastic package) |
| U71 | 74S157 | Quad 2 to 1 line Multiplexer |
| U72,U87 | 74S08 | Quad And2 |
| U74 | 74LS138 | Decoder 3 to 8 active low outputs |
| U75 | 74LS32 | Quad 2-input OR |
| U77 | 74LS08 | Quad And2 |
| U88,U89 | 74S138 | Decoder 3 to 8 active low outputs |
| U91 | MCS5750 | 75ns delay line |
| U92 | 74S10 | Triple 3-input NAND |
| C1,C18 | 47pF | Unpolarized capacitor |
| C6 | 10uF | Polarized capacitor |
| D1 | 1N4148 | 100V 0.15A standard switching diode, DO-35 |
| J1-J8 | Bus_ISA_8bit | 8-bit ISA-PC bus connector |
| J9 | Keyboard | Generic connector, single row, 01x05, script generated |
| J10 | Keylock | Generic connector, single row, 01x05, script generated |
| J11 | Speaker | Generic connector, single row, 01x04, script generated |
| J12 | Turbo LED | Generic connector, single row, 01x02, script generated |
| J13 | Reset switch | Generic connector, single row, 01x02, script generated |
| JP2,JP4 | Conn_01x02_Pin | Generic connector, single row, 01x02, script generated |
| JP3 | Conn_01x03_Pin | Generic connector, single row, 01x03, script generated |
| R1-R5,R13-R18,RP1-RP3 | 4K7 | 9 resistor network, star topology, bussed resistors, small symbol,Resistor |
| R6,R7,R11,R12 | 27 | Resistor |
| R8,R22 | 1K | Resistor |
| R9,R19 | 150 | Resistor |
| R10 | 680 | Resistor |
| R20,R24 | 330 | Resistor |
| R23,R25,RP4_1-RP4_8,RP5_1-RP5_9 | 33 | Resistor |
| SW1 | Turbo switch | Single Pole Single Throw (SPST) switch |
| SW2 | XT CONFIG | 8x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol |
| SW3 | ROM control | 4x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol |
| VC1 | 5-35pF | Trimmable capacitor, small symbol |
| Y1 | 14.318M | Two pin crystal |
| Y2 | 24M | Two pin crystal |