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| # M396F | ||
| # M396F V2.7 | ||
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| Replica of a 386SX Mainboard | ||
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| # PCB Revision History | ||
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| - V0.1 Initial revision 2022 made with Sprint-Layout | ||
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| # Specs | ||
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| This replica of a 386SX motherboard is based on the SARC RC2016A chipset. Supported are 386SX or CX486SLC 25/33/40 MHz CPUs. A socket for the optional 80387SX coprocessor is available. The RAM reaches from 512kb to 16MB. | ||
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| # Images | ||
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| Top view | ||
| [](#topview) | ||
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| blank PCB | ||
| [](#blank) | ||
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| # Bill of materials | ||
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| [](#bom) | ||
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| | Quantity | Description | PCB/Schematic's Reference | | ||
| | -------- | ---------------------------- | ---------------------------------------------------------------- | | ||
| | 1 | CON 4 PIN | BAT | | ||
| | 14 | CAP ELKO 10 uF 25V RM 2,5 | C1, C2, C4, C9, C14, C18, C28, C29, C34, C37, C40, C44, C46, C48 | | ||
| | 11 | CAP CER 100 nF RM 5,0 | C10, C17, C20, C22, C32, C33, C43, C45, C47, C50, C65 | | ||
| | 4 | CAP CER 30 pF RM 5,0 | C11, C13, C36, C38 | | ||
| | 3 | CAP CER 47 pF RM 5,0 | C12, C15, C66 | | ||
| | 1 | CAP CER 4,7 nF RM 5,0 | C16 | | ||
| | 2 | DIODE 1N4148 | D1, D2 | | ||
| | 6 | 16 Bit ISA Socket | J2, J3, J4, J5, J6, J7 | | ||
| | 1 | AT Power connector | J8 | | ||
| | 1 | Battery | BAT | | ||
| | 1 | CON 4 PIN | JP1 external Battery | | ||
| | 1 | CON 2 PIN | JP2 Display type | | ||
| | 1 | CON 5 PIN | JP3 Power LED / Key lock | | ||
| | 1 | CON 4 PIN | JP4 Speaker | | ||
| | 1 | CON 2 PIN | JP5 Turbo LED | | ||
| | 1 | CON 2 PIN | JP6 Turbo switch | | ||
| | 1 | CON 2 PIN | JP7 Reset switch | | ||
| | 3 | CON 3 PIN | JP8, JP9, JP10 CPU clock select | | ||
| | 1 | 3906 | Q1 | | ||
| | 2 | 3904 | Q2, Q3 | | ||
| | 2 | RES 0 Ohm 5% 1/4W | L1, L2 | | ||
| | 9 | RES 10 k Ohm 5% 1/4W | R2, R3, R4, R9, R10, R19, R21, R29, R30 | | ||
| | 2 | RES 1 k Ohm 5% 1/4W | R6, R31 | | ||
| | 1 | RES 51 k Ohm 5% 1/4W | R5 | | ||
| | 1 | RES 220 Ohm 5% 1W | R7 | | ||
| | 3 | RES 470 Ohm 5% 1W | R8, R23, R26 | | ||
| | 1 | RES 2 M Ohm 5% 1/4W | R11 | | ||
| | 2 | RES 1 M Ohm 5% 1/4W | R12, R24 | | ||
| | 2 | RES 330 Ohm 5% 1/4W | R13, R28 | | ||
| | 4 | RES 4,7 k Ohm 5% 1/4W | R14, R15, R16, R22 | | ||
| | 2 | RES 56 Ohm 5% 1/4W | R17, R18 | | ||
| | 2 | RES 22 Ohm 5% 1/4W | R20, R25 | | ||
| | 1 | RES 150 Ohm 5% 1/4W | R20 | | ||
| | 2 | RES Network 4,7 k Ohm bussed | RP1, RP2 | | ||
| | 1 | RES Network 330 Ohm bussed | RP3 | | ||
| | 3 | RES Network 10 Ohm parallel | RP4, RP5, RP6 | | ||
| | 1 | RES Network 100 Ohm parallel | RP7 | | ||
| | 1 | IC Keyboard | U1 | | ||
| | 1 | IC 74HC05AP | U2 | | ||
| | 1 | IC BIOS | U3 | | ||
| | 1 | IC W85C168 | U4 | | ||
| | 1 | IC TC4069UBP | U5 | | ||
| | 1 | IC PLL52C05S o. TK9107-2 | U6 | | ||
| | 1 | IC CPU | U7 | | ||
| | 1 | IC Coprocessor | U8 | | ||
| | 1 | IC Chipset | U9 | | ||
| | 4 | IC RAM | U10, U11, U12, U13 | | ||
| | 1 | Quarz 32,768 kHz | X1 | | ||
| | 1 | Quarz 14,31818 MHz | X2 | | ||
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| # Licence | ||
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| The project is free for non-commercial reproduktion |
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| * Name;Value | ||
| * | ||
| BAT;Battery | ||
| C1;10uF 25V RM2,5 | ||
| C2;10uF 25V RM2,5 | ||
| C4;10uF 25V RM2,5 | ||
| C9;10uF 25V RM2,5 | ||
| C10;100nF | ||
| C11;30pF | ||
| C12;47pF | ||
| C13;30pF | ||
| C14;10uF 25V RM2,5 | ||
| C15;47pF | ||
| C16;4,7nF | ||
| C17;100nF | ||
| C18;10uF 25V RM2,5 | ||
| C20;100nF | ||
| C22;100nF | ||
| C28;10uF 25V RM2,5 | ||
| C29;10uF 25V RM2,5 | ||
| C32;100nF | ||
| C33;100nF | ||
| C34;10uF 25V RM2,5 | ||
| C36;30pF | ||
| C37;10uF 25V RM2,5 | ||
| C38;30pF | ||
| C40;10uF 25V RM2,5 | ||
| C43;100nF | ||
| C44;10uF 25V RM2,5 | ||
| C45;100nF | ||
| C46;10uF 25V RM2,5 | ||
| C47;100nF | ||
| C48;10uF 25V RM2,5 | ||
| C50;100nF | ||
| C51;nc | ||
| C52;nc | ||
| C53;nc | ||
| C54;nc | ||
| C55;nc | ||
| C56;nc | ||
| C57;nc | ||
| C58;nc | ||
| C59;nc | ||
| C60;nc | ||
| C61;nc | ||
| C62;nc | ||
| C63;nc | ||
| C64;nc | ||
| C65;100pF | ||
| C66;47pF | ||
| D1;1N4148 | ||
| D2;1N4148 | ||
| J2;16 Bit ISA | ||
| J3;16 Bit ISA | ||
| J4;16 Bit ISA | ||
| J5;16 Bit ISA | ||
| J6;16 Bit ISA | ||
| J7;16 Bit ISA | ||
| J8;AT Power | ||
| JP1;EXT-BAT | ||
| JP2;Display type select | ||
| JP3;POW LED / KEY LOCK | ||
| JP4;SPEAKER | ||
| JP5;TB LED | ||
| JP6;TB SW | ||
| JP7;RESET | ||
| JP8;CPU Clock select | ||
| JP9;CPU Clock select | ||
| JP10;CPU Clock select | ||
| L1;0 | ||
| L2;0 | ||
| Q1;3906 | ||
| Q2;3904 | ||
| Q3;3904 | ||
| R2;10K | ||
| R3;10K | ||
| R4;10K | ||
| R5;51K | ||
| R6;1K | ||
| R7;220 | ||
| R8;470 | ||
| R9;10K | ||
| R10;10K | ||
| R11;2M | ||
| R12;1M | ||
| R13;330 | ||
| R14;4,7K | ||
| R15;4,7K | ||
| R16;4,7K | ||
| R17;56 | ||
| R18;56 | ||
| R19;10K | ||
| R20;22 | ||
| R21;10K | ||
| R22;4,7K | ||
| R23;470 | ||
| R24;1M | ||
| R25;22 | ||
| R26;470 | ||
| R27;150 | ||
| R28;330 | ||
| R29;10K | ||
| R30;10K | ||
| R31;1K | ||
| RP1;4,7K, Sternschaltung, 8Wid./9Pins | ||
| RP2;4,7K, Sternschaltung, 8Wid./9Pins | ||
| RP3;330, Sternschaltung, 8Wid./9Pins | ||
| RP4;10, Parallelschaltung, 4Wid./8Pins | ||
| RP5;10, Parallelschaltung, 4Wid./8Pins | ||
| RP6;10, Parallelschaltung, 4Wid./8Pins | ||
| RP7;100, Parallelschaltung, 4Wid./8Pins | ||
| U1;Keyboardcontroller | ||
| U2;74HC05AP | ||
| U3;BIOS | ||
| U4;W85C168 | ||
| U5;TC4069UBP | ||
| U6;PLL52C05S o. TK9107-2 | ||
| U7;386SX or CX486SLC 25/33/40 MHZ | ||
| U8;80387SX coprocessor | ||
| U9;Chipset | ||
| U10;RAM | ||
| U11;RAM | ||
| U12;RAM | ||
| U13;RAM | ||
| X1;32,768 kHz | ||
| X2;14,31818 MHz |
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