Octuplex
anachrocomputer
6502/6809 microcomputer in octagonal format
Components (23)
| Reference | Value | Description |
|---|---|---|
| U1 | MC68B09 | 8-Bit Microprocessing unit 2.0MHz, DIP-40 |
| U2 | MC68B40 | Motorola Programmable Timer Module, 2.0MHz, DIP-28 |
| U3 | R65C52 | Dual Asynchronous Communications Interface Adapter |
| U4 | 27128 | UV Erasable EPROM 128 KiBit, [Obsolete 2000-11] |
| U5 | HM62256BLP | 32,768-word × 8-bit High Speed CMOS Static RAM, 70ns, DIP-28 |
| U6 | 74LS139 | Dual Decoder 1 of 4, Active low outputs |
| U7 | MC68B50 | Asynchronous Communications Interface Adapter 2MHz, DIP-40 |
| U8 | 74LS259 | 8-bit addressable latch |
| U9 | M6502 | |
| U10 | R6522 | |
| U11,U15 | 74LS138 | Decoder 3 to 8 active low outputs |
| U12 | HCPL-2631 | Dual High Speed LSTTL/TTL Compatible Optocoupler, dV/dt 10000/us, VCM 1000, max 7V VCC, DIP-8 |
| U13 | 74LS251 | Multiplexer 8 to 1, 3-state Outputs |
| U14 | PCF8584 | I2C Bus Controller, DIP/SOIC-20 |
| U16 | ZN428 | 8-bit DAC with latch and reference |
| C1,C2 | 0.1uF | Unpolarized capacitor |
| C3 | 1uF | Unpolarized capacitor |
| J1,J2 | DIN-5_180degree | 5-pin DIN connector (5-pin DIN-5 stereo) |
| R1 | 220 | Resistor |
| R2 | 280 | Resistor |
| R3-R11 | 10k | Resistor |
| R12 | 390 | Resistor |
| X1,X2 | CXO_DIP8 | Crystal Clock Oscillator, DIP8-style metal package |