Ttl

23 boards

KiCad boards from 9 GitHub repositories tagged “ttl”, the most starred first; open any of them in PCBKit.

2 layers249.9 × 89.4 mm
CSCvon8
DoctorWkt/CSCvon8
A crazy small 8-bit CPU built with only seventeen 7400-series chips.
55 parts112GPL-3.0
2 layers63 × 46 mm
Pi485
bvarner/pi485
An open-source TTL UART <-> RS485 converter, intended for a Raspberry Pi or Arduino
31 parts41MIT
2 layers73.1 × 18.3 mm
RJ10Adapter
klein0r/pcb-ttl-ftdi-esp-adapter
PCB to connect a TTL reader either to an FTDI or ESP12-E/F (WiFi)
16 parts25MIT
2 layers191.1 × 114.3 mm
Controller
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
60 parts24
2 layers79.8 × 129.5 mm
Ttt ttl
DoctorWkt/TTL_TicTacToe
An implementation of Tic Tac Toe in TTL logic
82 parts21GPL-3.0
4 layers194.5 × 188.6 mm
MyCpu
fortinsylvain/MyCpu
Home brew CPU Hardware with 1-bit ALU implementation using 74LSxx, a micro-code and assembler coded in C#.
162 parts18MIT
2 layers235 × 158.8 mm
Gigatron
flypie/Gigatron
This is a version of the files from https://gigatron.io/ altered to work on a vanilla KiCAD 5.1.6. Changes are minimal in the schematic and PCB, layout has only been changed where dimensions or orientations changed as a…
151 parts2
2 layers64.8 × 32 mm
Rs ttl
bitomaxsp/rs-ttl
RS232 to TTL converter
19 parts
2 layers162.6 × 97.3 mm
Memory subsystem
TSJR/logic-analyzer
TTL logic analyzer built from 74xx logic and LED dot matrix display
73 parts
2 layers70 × 30 mm
Pi485bearer
bvarner/pi485
An open-source TTL UART <-> RS485 converter, intended for a Raspberry Pi or Arduino
25 parts41MIT
2 layers132.1 × 86.4 mm
ALU
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
30 parts24
2 layers76.2 × 68.6 mm
Clock
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
38 parts24
2 layers76.2 × 55.9 mm
Flags Register
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
16 parts24
2 layers53.3 × 52.1 mm
Instruction Register
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
6 parts24
2 layers286.4 × 484.5 mm
Circuits
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
58 parts24
2 layers149.2 × 86.4 mm
Memory
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
29 parts24
2 layers144.8 × 114.3 mm
Memory Access Register
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
39 parts24
2 layers81.3 × 82.6 mm
Program Counter
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
15 parts24
2 layers55.9 × 52.1 mm
Register
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
7 parts24
2 layers81.3 × 50.8 mm
Stack Pointer
DutchMaker/TTL-computer
Building a computer from scratch using 74xx logic chips
9 parts24
2 layers30 × 30 mm
8x8
TSJR/logic-analyzer
TTL logic analyzer built from 74xx logic and LED dot matrix display
3 parts
2 layers
Backplane
TSJR/logic-analyzer
TTL logic analyzer built from 74xx logic and LED dot matrix display
2 parts
2 layers50.3 × 80.3 mm
Logic Analyzer
TSJR/logic-analyzer
TTL logic analyzer built from 74xx logic and LED dot matrix display
16 parts