007-MemoryExpansion

dennis9819·Z8C-Homebrew-Computer·Modules/007-MemoryExpansion/007-MemoryExpansion.kicad_pcb

007-MemoryExpansion PCB layout, top view — open source board by dennis9819
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About the 007-MemoryExpansion PCB

007-MemoryExpansion is an open source PCB design by dennis9819, published on GitHub. It is a 2-layer board measuring 160 × 100.3 mm, with 31 components from 19 distinct parts.

Other key parts include the 74LS157, 74LS688, 74LS245, 74LS374 and 74LS74. By type, the board carries 23 ICs, 3 resistors, 2 connectors, 1 crystal, 1 jumper and 1 switch.

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

From the project

To easily develop for my Z80 homebrew system, I designed a simple assempler development environment. This packs the following tasks into one script: zmac assembly object file creation (for xmodem upload) monitor file creation (creates monitor commands for ascii upload) symbol tab

To easily develop for my Z80 homebrew system, I designed a simple assempler development environment. This packs the following tasks into one script: zmac assembly object file creation (for xmodem upload) monitor file creation (creates monitor commands for ascii upload) symbol table include file generation * eeprom programming for the minipro

./build.sh dir`: Path to the location of the asm file

Main components on the 007-MemoryExpansion

007-MemoryExpansion bill of materials (BOM)

31 components, 19 distinct parts.

QtyPartRefs
4
74LS157
U1, U2, U3, U8
2
~
U4, U9
1
74LS688
U5
2
74LS245
U6, U10
1
74LS374
U7
1
~
U11
8
~
U12, U13, U16, U17, U19, U20, U22, U23
1
74LS74
U15
1
74LS125
U18
1
74LS138
U21
1
74LS175
U24
1
40MHz
X1
1
Z8C_Ca#RD
J1
1
ENA19
J2
1
Conn_02x06_Odd_Even
JP1
1
SW_DIP_x04
SW1
1
4.7k
R1
1
4k7
RN1
1
R_Network08
RN2

007-MemoryExpansion design files

The KiCad project lives in the dennis9819/Z8C-Homebrew-Computer repository on GitHub; these links point at the commit this page was built from.

007-MemoryExpansion: common questions

How big is the 007-MemoryExpansion PCB?

The 007-MemoryExpansion measures 160 × 100.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 007-MemoryExpansion?

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

Where can I download the 007-MemoryExpansion design files?

From the dennis9819/Z8C-Homebrew-Computer repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the 007-MemoryExpansion design in my own project?

The repository has no license, so all rights stay with dennis9819. Use it as a reference, and ask the author before reusing the design.

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