Retro stack power clock

gcoonrod·retro-stack·boards/retro-stack-power-clock/retro-stack-power-clock.kicad_pcb

About the Retro stack power clock PCB

Retro stack power clock is an open source PCB design by gcoonrod, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 99.1 × 99.1 mm, with 48 components from 25 distinct parts.

Other key parts include the L7805CV, 74HC08, 74HC32, 74HC14 and NE555P. By type, the board carries 15 capacitors, 12 resistors, 7 ICs, 5 diodes, 4 connectors and 3 switches.

It belongs with the retro computing designs in this gallery.

From the project

A retro computer project based on stackable PCB boards.

This module is based on the 555 clock circuit used in Ben Eater's 8-bit and 6502 computer projects.

- PTC is oversized. - TVS diode is oversized. - Need knob for RV1. - Need 2.54mm pitch header jumpers. - Add more detail to silkscreen. - Remove Net ties.

Retro stack power clock, from the project README — From the project README

Main components on the Retro stack power clock

L7805CV 74HC08 74HC32 74HC14 NE555P

Retro stack power clock bill of materials (BOM)

48 components, 25 distinct parts.

Qty	Part	Footprint	Refs
1	L7805CV	TO-220-3_Horizontal_TabUp	U1
1	74HC08	DIP-14_W7.62mm_Socket_LongPads	U2
1	74HC32	DIP-14_W7.62mm_Socket_LongPads	U3
1	74HC14	DIP-14_W7.62mm_Socket_LongPads	U4
3	NE555P	DIP-8_W7.62mm_LongPads	U5, U6, U7
1	BUS_6502	PinSocket_2x20_P2.54mm_Vertical	J1
1	DC_IN	BarrelJack_CUI_PJ-063AH_Horizontal	J2
1	JMP_CLK_SEL	PinHeader_2x03_P2.54mm_Vertical	J3
1	JMP_HLT	PinHeader_2x02_P2.54mm_Vertical	J4
1	LVR125S-240	LVR125S240	F1
1	1M	Potentiometer_Bourns_PTV09A-2_Single_Horizontal	RV1
1	SW_PWR	EG1213	SW1
1	SW_MODE	LC1258EENP1RLGR	SW2
1	SW_PULSE	SW_Tactile_SPST_Angled_PTS645Vx58-2LFS	SW3
1	D_TVS	D_DO-201_P5.08mm_Vertical_AnodeUp	D1
2	5mm Blue	LED_D5.0mm	D2, D4
1	5mm White	LED_D5.0mm	D3
1	5mm Red	LED_D5.0mm	D5
2	10u	CP_Radial_D5.0mm_P2.00mm	C1, C4
1	1u	CP_Radial_D5.0mm_P2.50mm	C2

Show 5 more

Qty	Part	Footprint	Refs
1	0u1	C_Rect_L7.0mm_W2.5mm_P5.00mm	C3
4	0u01	C_Rect_L7.0mm_W4.5mm_P5.00mm	C5, C6, C8, C9
1	1u	C_Rect_L4.6mm_W3.8mm_P2.50mm_MKS02_FKP02	C7
6	100n	C_Rect_L7.0mm_W2.5mm_P5.00mm	C10, C11, C12, C13, C14, C15
12	1k	R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal	R1, R2, R3, R4, R5, R6, R7, R8 +4

Retro stack power clock design files

The KiCad project lives in the gcoonrod/retro-stack repository on GitHub; these links point at the commit this page was built from.

Retro stack power clock: common questions

How big is the Retro stack power clock PCB?

The Retro stack power clock measures 99.1 × 99.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Retro stack power clock?

48 components, from 25 distinct parts. The full bill of materials is listed on this page.

Where can I download the Retro stack power clock design files?

From the gcoonrod/retro-stack repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Retro stack power clock design in my own project?

Yes, under the terms of its Apache-2.0 license, which gcoonrod chose for the repository.

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