4 layers254 × 137.7 mm
S100 ColorMagic-1.1-006
RichCini/LomasBoards
Small repository of files/data related to Lomas Data Products S-100 boards.
150 parts1
2 layers100 × 51.6 mm
CGPalReader24
RichCini/PALReader1Bit-banged PAL reader based on the work by Chuck Guzis and adds by Daver2
- Size
- 100 × 51.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 61
- Pads
- 188
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 May 2023
- Updated
- 20 Aug 2025
Overview
CGPalReader24 is an open-source printed circuit board by RichCini, from the RichCini/PALReader repository on GitHub. It is a 2-layer board of 100 × 51.6 mm with 27 parts on 61 nets.
It is built around the PAL16L8-5JC, 74LS393P-E and 74LS151PC, with the 74LS14PC and 74LS157PC among its other parts. Its parts include 9 capacitors, 9 ICs, 8 resistors and 1 connector.
Main components
5PAL16L8-5JC
PLCC-205V 5ns PAL PAL16L8 PLCC-20 Programmable Logic Device (CPLDs/FPGAs)Infineon TechnologiesProgrammable Logic Device (CPLDs/FPGAs)
74LS393P-E
DIP-14-20℃~+75℃ 2 35MHz 4 4.75V~5.25V 400mW 40ns@5V,15pF 74LS Binary Counter Reset function DIP-14 Counters, Dividers ROHSRenesas ElectronicsCounters, Dividers
74LS151PC
DIP-160℃~+70℃ 12.5ns 4.75V~5.25V 400uA 6mA 74LS 8mA Tri-state output DIP-16 Signal Switches, Multiplexers, Decoders ROHSonsemiSignal Switches, Multiplexers, Decoders74LS14PC
PDIP-14InvertersTexas Instruments74LS157PC
PDIP-160℃~+70℃ 4.75V~5.25V Single Supply PDIP-16 Signal Switches, Multiplexers, Decoders ROHSTexas InstrumentsSignal Switches, Multiplexers, Decoders
README
README.mdThis is a small archive of PAL reading code and schematics from Chuck Guzis as discussed on the VCF Forums.
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | 0.1u | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2, C3, C4, C5, C6, C7, C8, C9 |
| 8 | 1.0kQ | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8 |
| 3 | 74LS393 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U2, U3, U5 |
| 2 | 74LS151 | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U4, U6 |
| 1 | 74LS14 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U1 |
| 1 | 74LS157 | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U7 |
| 1 | Conn_01x06 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J1 |
| 1 | PAL16L8 | Package_DIP:DIP-20_W7.62mm_Socket_LongPads | U8 |
| 1 | PAL20L10 | Package_DIP:DIP-24_W7.62mm_Socket_LongPads | U9 |
Questions
How big is the CGPalReader24 PCB?
It measures 100 × 51.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the CGPalReader24 use?
27 parts, built around the PAL16L8-5JC, 74LS393P-E, 74LS151PC and 74LS14PC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the CGPalReader24 KiCad files?
From the RichCini/PALReader repository on GitHub, at the commit this page was made from: the board is CGPalReader24.kicad_pcb and its schematic CGPalReader24.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the CGPalReader24 design in my own project?
Its repository states no licence, so its author keeps all rights: ask RichCini before reusing the design.
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