EPROM-Programmer

codesqueak·EPROM-Programmer·kicad/80bus.kicad_pcb

EPROM-Programmer PCB layout, top view — open source board by codesqueak

About the EPROM-Programmer PCB

EPROM-Programmer is an open source PCB design by codesqueak, published on GitHub under the CERN-OHL-S-2.0 license. It is a 2-layer board measuring 140 × 100 mm, with 66 components from 33 distinct parts.

Other key parts include the NE555P, 4049 and 4040. By type, the board carries 30 resistors, 7 diodes, 7 capacitors, 4 transformers, 3 ICs and 1 test point.

It belongs with the usb & debug tools and retro computing designs in this gallery.

From the project

2708 / 2716 EPROM Programmer. PIO Port Attached. Nascom Compatible

This card has been designed to be a functional replacement for the Bits & PCs Nascom EPROM Programmer. It is fully compatible with the existing software.

The card is a completely new implementation of the design with a number of improvements over the original:

Completely new track layout All components are readily available from commercial component suppliers (..and eBay!) Switches are fitted to standard 12 PIN DIL sockets LED power indicator * Power test point

EPROM-Programmer, from the project README — From the project README

Main components on the EPROM-Programmer

NE555P 4049 4040

EPROM-Programmer bill of materials (BOM)

66 components, 33 distinct parts.

Qty	Part	Footprint	Refs
1	NE555P	DIP-8_W7.62mm	IC1
1	4049	DIP-16_W7.62mm_Socket	IC2
1	4040	DIP-16_W7.62mm_Socket	IC3
1	PIO Connection	PinHeader_2x13_P2.54mm_Vertical	PL1
1	12V Feed	TestPoint_THTPad_D2.0mm_Drill1.0mm	PWR1
1	-5V Feed	TestPoint_THTPad_D2.0mm_Drill1.0mm	PWR2
2	ZIF Socket 24 Pin DIP	DIP-24_W15.24mm_Socket	SKT1-ZIF-Donor_1, SKT2-ZIF-Target_1
2	4PDT Switch	DIP-12_W7.62mm_Socket	SW_2708_2716_1, SW_POWER_1
2	22uf	C_Disc_D5.0mm_W2.5mm_P5.00mm	T1, T2
2	2.2uf	C_Disc_D5.0mm_W2.5mm_P5.00mm	T3, T4
1	TestPoint	TestPoint_THTPad_2.0x2.0mm_Drill1.0mm	TP1
1	2N2102	TO-39-3	TR1
1	BC558	TO-92_Inline_Wide	TR2
5	BC548	TO-92_Inline_Wide	TR3, TR4, TR5, TR6, TR7
2	BAT48RL	D_DO-35_SOD27_P12.70mm_Horizontal	D1, D2
1	24v	D_DO-41_SOD81_P12.70mm_Horizontal	D3
1	4.7V	D_DO-41_SOD81_P12.70mm_Horizontal	D4
2	1N4148	D_DO-35_SOD27_P7.62mm_Horizontal	D5, D6
1	LED	LED_D3.0mm	D7
4	10nf	C_Disc_D5.0mm_W2.5mm_P5.00mm	C5, C6, C7, C9

Show 13 more

Qty	Part	Footprint	Refs
2	100nf	C_Disc_D5.0mm_W2.5mm_P5.00mm	C8, C11
1	47nf	C_Disc_D5.0mm_W2.5mm_P5.00mm	C10
2	680	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R1, R30
6	10K	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R2, R4, R8, R13, R19, R20
1	560	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R3
1	180	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R5
1	47	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R6
1	33K	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R7
3	1K	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R9, R14, R15
1	820K	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R10
1	47K	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R11
4	1M	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R12, R16, R17, R18
9	4K7	R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal	R21, R22, R23, R24, R25, R26, R27, R28 +1

EPROM-Programmer design files

The KiCad project lives in the codesqueak/EPROM-Programmer repository on GitHub; these links point at the commit this page was built from.

Layoutkicad/80bus.kicad_pcb
Schematickicad/80bus.kicad_sch

EPROM-Programmer: common questions

How big is the EPROM-Programmer PCB?

The EPROM-Programmer measures 140 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the EPROM-Programmer?

66 components, from 33 distinct parts. The full bill of materials is listed on this page.

Where can I download the EPROM-Programmer design files?

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

Can I use the EPROM-Programmer design in my own project?

Yes, under the terms of its CERN-OHL-S-2.0 license, which codesqueak chose for the repository.

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