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danwerner21
The WE816 is a 16-bit 65816 based system with 512K of System RAM, 96K of System ROM, 32K of video RAM, a TMS9918 graphics processor and an AY-3-8910 Sound chip. The system runs a custom version of BASIC and supports commodore compatible IEC disk drives.
| U7-U9 | 74LS574 |
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| U10 | RAM_32KO |
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| U11 | 74LS32 |
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| U12,U14 | GAL16V8 |
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| U13 | GAL20V8 |
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| U15 | 16550 |
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| U16 | DS1302 |
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| U17 | MAX232 |
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| U18,U19 | W65C22NxP |
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| U20,U22-U24,U31 | 74LS245 |
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| U21 | 74LS244 |
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| U25 | AY-3-8910 |
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| U26 | SRAM_512KO |
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| U27 | 658C16 |
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| U28 | 27C256 |
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| U29 | 27C512 |
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| U30 | 74LS373 |
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| BT1 | Battery_Cell |
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| C1-C33,C37,C49 | 0.1 µF |
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| C34,C35 | 33 pF |
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| C36,C48 | 22 µF |
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| C38 | 220 µF |
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| C39-C43 | 1.0µF |
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| C44,C45 | 270 pF |
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| C46,C47,C50 | 10 µF |
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| D1 | BICOLOR LED |
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| H1-H5 | MountingHole |
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| J1 | Conn_01x02_Male |
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| J2 | TTL Serial |
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| J3 | KEYBOARD |
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| J4 | IEC PORT |
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| J5 | CASELEDS |
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| J6 | INTERRUPT SELECT |
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| J7 | expansion port |
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| J8 | AudioJack3 |
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| J9,J10 | DB9_Male |
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| K1 | 1&2 FOR SMALL ROM, 2&3 FOR LARGE ROM |
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| K2 | USE FOR 512K SRAM OR 128K SRAM |
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| K3 | 1&2 FOR 27C256, 2&3 FOR 29C256 |
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| L1 | INDUCTOR (BEAD) |
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| P1 | SERIAL |
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| P2 | CHAN_MIX |
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| P3 | POWER |
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| P4 | RESET |
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| P5 | CLK_CPU |
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| R1 | 0Ω |
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| R2 | 470Ω |
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| R3,R4 | 75Ω |
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| R5-R10,R18,RR1 | 1KΩ |
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| R11-R14,R17 | 10KΩ |
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| R15 | 100Ω |
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| R16 | 10Ω |
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| RR2-RR4,RV1,RV2 | 4700Ω |
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| X1 | 10.7 MHz |
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| X2 | CXO_DIP8 |
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| X3 | CRYSTAL 32.768 KHz |
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