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STD chromium 8 single board

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Update time: 2021-04-11 20:39:19
Creation time: 2018-02-19 15:16:46
Description
my try at making my 8 bit computer a single board
Design Drawing
schematic diagram
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PCB
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ID Name Designator Footprint Quantity
1 HD74HC193P U1,U2,U9,U10,U12,U13,U15,U16,U18,U19,U22,U28,U29,U31,U32,U34,U35,U37,U38,U40,U46,U47,U49,U50,U41,U43,U44,U24,U25 DIP16 29
2 CLR CLR,CLR1,CLR2,CLR3,CLR4 HDR-1X1/2.54 5
3 74LS245 U3,U11,U14,U17,U30,U33,U36,U39,U48,U51,U42,U45,U53 DIL20 13
4 SN74LS181N U4,U5 DIL_24-600_SOCKET 2
5 74LS245N U6,U23,U26,U57 DIP20 4
6 SN74LS173AN U7,U8 DIP16 2
7 SIP1 CARRYOUT,CARRYIN,CLOCK,ALU3,ALU2,ALU1,ALU0,ALU4,ALU5,ALU6,ALU7 HDR1X1 11
8 DM74LS154N U20,U21 DIP24-600 2
9 ATMEGA328P-PU 1STCROM,38NDCROM DIP28-2.54-35.6X13.5MM 2
10 Header-Male-2.54_1x1 D1,D2,D3,D5,D6,D7,D8,A1,A2,A3,A4,A5,P26,P27,P28,P29,P30,P31,P32,P33,P34,P35,P36,P37,P38,P39,P40,P41,P42,P43,P44,P45,P46,P47,P48,P49,AD15,AD14,AD13,AD12,AD11,AD10,AD9,AD8,AD7,AD6,AD5,AD4,AD3,AD2,AD1,AD0,P66,P67,P68,P69,P70,P71,P72,P73,P74,P75,P76,P77,P78,P79,P80,P81,P82,P83,P84,P85,P86,P87,P88,P89,P90,P91,P92,P93,P94,P95,P96,P97,F0,F1,F2,F3,LOGICSELECT,EXTRAOP,EXTRAOP2,P1,P2,P3,P4,P5,P6,P7,P8,VF,SERIAL,I/O,D9I,D10I,D11I,D12I,D13I,D14I,D15I,D16I,A6I,A7I,A8I,A9I,A10I,A11I,A12I,A13I,A14I,A15I,A16I,A17I,A18I HDR-1X1/2.54 123
11 Header-Male-2.54_1x D4 HDR-1X1/2.54 1
12 DM74LS155N U27,U56 DIP16 2
13 RAM U54 DIP28-2.54-35.6X13.5MM 1
14 ROM U55 DIP28-2.54-35.6X13.5MM 1
15 NO MEMO HDR-1X1/2.54 1
16 ader-Male-2.54_1x1 WR HDR-1X1/2.54 1
17 HD74LS04P U52 DIP14 1

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