8-bit computer

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STD 8-bit computer

License: Public Domain

Mode:

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Update time： 2021-02-03 11:59:57

Creation time： 2019-12-25 14:22:44

Description

this is my 8-bit computer(under development).

Design Drawing

schematic diagram

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Clock_Module
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A register
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B register
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Instruction register
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ALU
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Memory address register
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RAM module
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Program counter
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Output register
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PCB

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PCB_2020-07-04_19-49-00
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BOM

BOM download Purchase Parts

ID	Name	Designator	Footprint	Quantity
1	1uF	C1	CAP-TH_BD5.0-P2.00-D0.8-FD	1
2	1M	R5	RES-TH_BD2.3-L6.5-P10.50-D0.5	1
3	SN74LS04N	U5,U29	PDIP-14_L19.7-W6.6-P2.54-LS8.3-BL	2
4	LM555N	U2,U3,U1	DIP-8_L9.7-W6.4-P2.54-LS7.6-BL	3
5	TSA064G60-250	SW2	SW-TH_L6.0-W6.0-P5.08	1
6	1M	R3	RES-ADJ-TH_3296X-8MM	1
7	204-10SURD/S530-A3-L	LED2	LED-TH_BD3.0-P2.54-FD	1
8	10nF	C3,C2,C8	CAP-TH_L5.0-W5.0-P2.54-D1.0	3
9	1K	R2,R7,R4,R1,R6	RES-TH_BD2.3-L6.5-P10.50-D0.5	5
10	74LS32	U7	74LS32	1
11	SS-12D02-VG4	SW1,SW4	SW-TH_SS-12D02-VG4	2
12	100nF	C6,C4,C5	CAP-TH_L6.0-W6.0-P2.54-D1.0	3
13	220	R63	RES-TH_BD2.3-L6.5-P10.50-D0.5	1
14	74LS08	U4,U20	DIP14	2
15	220	R15,R14,R13,R12,R8,R9,R10,R11,R18,R16,R17,R19,R20,R21,R22,R23,R25,R24,R31,R26,R27,R28,R29,R30,R39,R33,R37,R41,R38,R32,R40,R36,R35,R34,R45,R44,R42,R43,R51,R50,R49,R48,R52,R55,R53,R54,R57,R59,R60,R58	R_AXIAL-0.3	50
16	RED	LED6,LED7,LED8,LED9,LED1,LED3,LED4,LED5,LED10,LED12,LED11,LED13,LED14,LED15,LED16,LED17,LED33,LED34,LED35,LED28,LED29,LED30,LED31,LED32,LED41,LED46,LED47,LED48,LED49,LED42,LED43,LED44,LED45	LED-TH_BD5.0_RED	33
17	74LS245	U6,U8,U13,U35	DIP-20_L26.8-W6.4-P2.54-LS7.6-BL	4
18	0.1µF	C7,C9,C10,C12,C11,C13,C15,C14,C17	RAD-0.1	9
19	74LS173	U10,U11,U9,U12,U15,U14,U16	DIP16	7
20	YELLOW	LED22,LED25,LED24,LED23	LED-TH_BD5.0_BLUE	4
21	BLUE	LED18,LED19,LED20,LED21	LED-TH_BD5.0_BLUE	4
22	74LS245	U17	DIP20	1
23	74LS02	U18	DIP14	1
24	GREEN	LED26,LED27	LED-TH_BD5.0_BLUE	2
25	74LS86	U22,U23	DIP14	2
26	74LS283	U21,U19	DIP16	2
27	1k	R47,R46,R56,R62	R_AXIAL-0.3	4
28	SN74LS157N	U24	DIP-16_16P-L20.2-W6.6-P2.54-LS7.6-BL	1
29	Yellow	LED39,LED36,LED38,LED37	LED-TH_BD5.0_GREEN	4
30	GREEN	LED40	LED-TH_BD5.0_GREEN	1
31	DIP switchEI-04	SW3	SW-TH_DIP SWITCHEI-04	1
32	SN74LS173AN	U25	DIP16	1
33	DIP switchEI-08	DIP1	SW-TH_16P-L20.5-W6.0-P2.54	1
34	74LS157	U32,U31,U30	DIP-16_16P-L20.2-W6.6-P2.54-LS7.6-BL	3
35	74LS04	U28	PDIP-14_L19.7-W6.6-P2.54-LS8.3-BL	1
36	switch	SW5	KEY-TH_2P-L6.0-W6.0-P5.00	1
37	74LS00	U34	PDIP-14_L19.7-W6.6-P2.54-LS8.3-BL	1
38	0.01µF	C16,C18,C19	RAD-0.1	3
39	74LS245	U33	DIP-20_L25.5-W10.0-P2.54-LS7.6-BL	1
40	74189	U27,U26	DIP-16_L20.4-W5.8-P2.54-LS7.6-BL	2
41	74LS161	U36	DIP-16_L19.8-W6.5-P2.54-LS7.6-BL	1
42	GREEN	LED50,LED51,LED52,LED53	LED-TH_BD3.0_GREEN	4
43	100K	R61	R_AXIAL-0.3	1
44	74LS139	U39	DIP16	1
45	NE555	U37	DIP-8_L9.8-W6.6-P2.54-LS7.6-BL	1
46	SEG-TH_0.56×1_Anode	SEG2,SEG1,SEG3,SEG4	LED-SEG-TH_10P-L12.6-W19.0-P2.54-S15.24-BL	4
47	74LS107	U38	DIP14	1