Xl-7-repro

computerguy096·xl-7-repro·kicad/xl-7.kicad_sch

This repository ships a schematic but no board layout.

About the Xl-7-repro PCB

Xl-7-repro is an open source PCB design by computerguy096, published on GitHub under the GPL-3.0 license. It is a board, with 164 components from 71 distinct parts.

Other key parts include the 8288, 74LS245, 74LS27, 74S04 and 8284. By type, the board carries 93 ICs, 24 resistors, 13 connectors, 3 jumpers, 3 switches and 3 capacitors.

From the project

This is a reproduction of an XT clone board, based on the XT 5160.

Main components on the Xl-7-repro

8288 74LS245 74LS27 74S04 8284 74LS00 74LS373 74LS244 74S280 74LS670 74LS07 74LS175 74LS92 8087 8088 27256 8237 8255A 74LS322 PAL R6 74S20 41256 PAL16L8 74LS74

Xl-7-repro bill of materials (BOM)

164 components, 71 distinct parts.

Qty	Part	Footprint	Refs
1	8288	DIP-20_W7.62mm	U1
4	74LS245	DIP-20_W7.62mm	U2, U10, U11, U22
1	74LS27		U3
1	74S04		U4
1	8284	DIP-18_W7.62mm	U5
1	74LS00		U6
3	74LS373	DIP-20_W7.62mm	U7, U8, U18
5	74LS244	DIP-20_W7.62mm	U9, U13, U14, U15, U16
1	74S280	DIP-14_W7.62mm	U12
1	74LS670	DIP-16_W7.62mm	U17
1	74LS07	DIP-14_W7.62mm	U19
1	74LS175	DIP-16_W7.62mm	U20
1	74LS92	DIP-14_W7.62mm	U21
1	8087	DIP-40_W15.24mm	U23
1	8088	DIP-40_W15.24mm	U24
3	27256	DIP-28_W15.24mm	U25, U26, U27
1	8237	DIP-40_W15.24mm	U28
1	8255A	DIP-40_W15.24mm	U29
1	74LS322		U30
1	PAL R6		U31

Show 51 more

Qty	Part	Footprint	Refs
1	74S20		U32
18	41256	DIP-16_W7.62mm	U33, U34, U35, U36, U37, U38, U39, U40 +10
1	PAL16L8		U42
2	74LS74	DIP-14_W7.62mm	U43, U76
1	74S74		U44
2	74LS04	DIP-14_W7.62mm	U45, U73
2	74S158	DIP-16_W7.62mm	U55, U56
1	8259A	DIP-28_W15.24mm	U57
1	8253	DIP-24_W15.24mm	U58
2	74LS00	DIP-14_W7.62mm	U59, U90
1	74LS10	DIP-14_W7.62mm	U60
1	74LS14	DIP-14_W7.62mm	U61
18	MK4164N	DIP-16_W7.62mm	U62, U63, U64, U65, U66, U67, U68, U69 +10
1	74S157	DIP-16_W7.62mm	U71
2	74S08	DIP-14_W7.62mm	U72, U87
1	74LS138	DIP-16_W7.62mm	U74
1	74LS32	DIP-14_W7.62mm	U75
1	74LS08	DIP-14_W7.62mm	U77
2	74S138	DIP-16_W7.62mm	U88, U89
1	MCS5750	DIP-14_W7.62mm	U91
1	74S10	DIP-14_W7.62mm	U92
1	74S74	DIP-14_W7.62mm	U93
1	BC547	TO-92_Inline	Q1
1	14.318M		Y1
1	24M		Y2
8	Bus_ISA_8bit	ISA8	J1, J2, J3, J4, J5, J6, J7, J8
1	Keyboard		J9
1	Keylock		J10
1	Speaker		J11
1	Turbo LED		J12
1	Reset switch		J13
2	Conn_01x02_Pin		JP2, JP4
1	Conn_01x03_Pin		JP3
3	4K7	R_Array_SIP10	RP1, RP2, RP3
9	33	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	RP4_1, RP4_2, RP4_3, RP4_4, RP4_5, RP4_6, RP4_7, RP4_8 +1
8	33		RP5_1, RP5_3, RP5_4, RP5_5, RP5_6, RP5_7, RP5_8, RP5_9
1	Turbo switch		SW1
1	XT CONFIG		SW2
1	ROM control		SW3
1	5-35pF		VC1
1	1N4148	D_DO-35_SOD27_P7.62mm_Horizontal	D1
2	47pF	C_Disc_D3.0mm_W1.6mm_P2.50mm	C1, C18
1	10uF		C6
11	4K7	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	R1, R2, R3, R4, R5, R13, R14, R15 +3
4	27	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	R6, R7, R11, R12
2	1K	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	R8, R22
2	150	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	R9, R19
1	680	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	R10
2	330	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	R20, R24
1	33	R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal	R23
1	33		R25

Xl-7-repro design files

The KiCad project lives in the computerguy096/xl-7-repro repository on GitHub; these links point at the commit this page was built from.

Schematickicad/xl-7.kicad_sch

Xl-7-repro: common questions

How many components are on the Xl-7-repro?

164 components, from 71 distinct parts. The full bill of materials is listed on this page.

Where can I download the Xl-7-repro design files?

From the computerguy096/xl-7-repro repository on GitHub, which has the schematic; the links under Design files point to each one.

Can I use the Xl-7-repro design in my own project?

Yes, under the terms of its GPL-3.0 license, which computerguy096 chose for the repository.