74HCT6526 Board 0

dmolinagarcia·74HCT6526·B0/B0.kicad_pcb

74HCT6526 Board 0 layout, top view — open source board by dmolinagarcia

About the 74HCT6526 Board 0

74HCT6526 Board 0 is an open source PCB design by dmolinagarcia, published on GitHub. It is a 4-layer board measuring 100 × 100 mm, with 73 components from 19 distinct parts.

Other key parts include the 74HCT00, 74HCT125, 74HC244, 74HC32 and 74HC04. By type, the board carries 33 capacitors, 32 ICs, 3 resistors and 1 diode.

It belongs with the retro computing designs in this gallery.

From the project

74HCT6526

For a stack to work properly, is mandatory that all boards share the same MAJOR.MINOR versión. Any change than renders a board incompatible with the previous releases triggers a new MINOR version. If a version only includes fixes, but does not alter the buses, it's only a new revision. There may be some cases where boards with different MAJOR.MINOR version can actually work together, but this is not something I can guarantee or predict. A deep look at the schematics to understand the differences between releases is needed to actually confirm this.

Main components on the 74HCT6526 Board 0

74HCT00 74HCT125 74HC244 74HC32 74HC04 74HC00 74HC125 74HCT08 74HC377 74HCT138 74HC74

74HCT6526 Board 0 bill of materials (BOM)

73 components, 19 distinct parts.

Qty	Part	Footprint	Refs
1	74HCT00	SO-14	U001
1	74HCT125	SO-14	U002
4	74HC244	SOIC-20W	U003, U004, U005, U006
2	74HC32	SO-14	U007, U030
4	74HC04	SO-14	U008, U011, U015, U018
7	74HC00	SO-14	U009, U012, U016, U019, U028, U029, U031
4	74HC125	SO-14	U010, U013, U017, U020
2	74HCT08	SO-14	U014, U021
4	74HC377	SOIC-20W	U022, U023, U024, U025
2	74HCT138	SO-16	U026, U027
1	74HC74	SO-14	U032
3	Conn_02x10_Odd_Even	PinHeader_2x10_P2.54mm_Vertical	CONTROLBUS0, DATABUS0, ENABLEBUS0
1	6526	IC Interface 2x20	EXT1
1	LED	LED_0805_2012Metric	D1
1	100n	C_0603_1608Metric	C000
32	100n	0603_SMD	C001, C002, C003, C004, C005, C006, C007, C008 +24
1	R	R_0805_2012Metric	R1
1	3k	R_Array_SIP9	RN1
1	1k	R_Array_SIP9	RN2

74HCT6526 Board 0 design files

The KiCad project lives in the dmolinagarcia/74HCT6526 repository on GitHub; these links point at the commit this page was built from.

LayoutB0/B0.kicad_pcb
SchematicB0/B0.kicad_sch

74HCT6526 Board 0: common questions

How big is the 74HCT6526 Board 0?

The 74HCT6526 Board 0 measures 100 × 100 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the 74HCT6526 Board 0?

73 components, from 19 distinct parts. The full bill of materials is listed on this page.

Where can I download the 74HCT6526 Board 0 design files?

From the dmolinagarcia/74HCT6526 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 74HCT6526 Board 0 design in my own project?

The repository has no license, so all rights stay with dmolinagarcia. Use it as a reference, and ask the author before reusing the design.

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