Boards using the 74HC161S

64 boards

Boards in 43 GitHub repositories, designed in KiCad, that use the 74HC161S by GR (0℃~+70℃ 20MHz 2V~6V 4 500mW Asynchronous Hexadecimal Counter Rising Edge Synchronous Up Counter SOP-16 Counters, Dividers ROHS). See how each wires it, with its parts, size, README and files; the 74HC161S’s symbol, footprint and pinout are on its own page.

2 layers245.1 × 160 mm
8-Bit CPU 32k
slu4coder/Minimal-64x4-Home-Computer
My DIY TTL home computer with VGA and PS/2 and 4x the processing power of a Commodore C64 or Apple II.
139 parts326
2 layers191.8 × 121.3 mm
8-Bit CPU 32k
slu4coder/Minimal-UART-Computer-1-2
Legacy: Version 1 and 2 of my TTL-only CPU featuring UART I/O, an expansion port, 512KB SSD at up to 10MHz clock speed
109 parts184
2 layers306.1 × 130.2 mm
8-Bit CPU 32k
slu4coder/Minimal-64-Home-Computer
Legacy: Full TTL-only home computer with VGA and PS/2 and twice the processing power of a Commodore 64
132 parts94
2 layers100 × 75 mm
RTSS Power Supply V2-5C
RadioThermal/RadioThermal_Soldering_OSHW
Open Source Hardware 470KHz Induction Soldering Iron
69 parts84CERN-OHL-P-2.0
2 layers208.9 × 170.8 mm
8-Bit CPU 32k
slu4coder/Minimal-UART-Computer-3
Version 3 of my educational DIY TTL computer built around a UART serial interface - now with blinkenlights!
207 parts54
2 layers99.7 × 63.9 mm
NES CN ROM-256-05
emeargt/nes-cnrom
KiCad project for NES-CN-ROM-256-05 cartridge schematic and PCB
17 parts31CC-BY-SA-4.0
2 layers208 × 110 mm
8 16 computer 2
halfburnttoast/TCPU816-v1
Version 1.1 of my 8-bit, TTL computer.
120 parts21
4 layers158.8 × 104.1 mm
8-Bit CPU
frenchie/8-Bit-Computer
An 8-Bit Computer
323 parts20
4 layers62.2 × 21.6 mm
Counter
Velko/8-bit-CPU
Homebrew 8-bit CPU
65 parts16MIT
2 layers178 × 711 mm
MSAP-2 rev.A SMD
mehrantsi/MSAP-2
An 8-bit computer. Successor to MSAP-1
658 parts13MIT
2 layers152.4 × 162.6 mm
VGA
GeraKuznetsov/M68K-MBC
A M68k Multi-Board Computer design. The design basics is as follows: 1) A backplane PCB contains the majority of the bus, such as the address and data lines. 2) Cards slot into the backplane.
143 parts10
2 layers95.1 × 72.1 mm
4004MainBoard
novi/4004MainBoard
Intel 4004 Single Board Computer (KiCad project)
162 parts4CC-BY-4.0
2 layers160 × 140 mm
8-Bit CPU
otterbox901/8-Bit_CPU
Microcoded 8-bit CPU built from 24 74HC-series ICs: a custom 10-instruction ISA, 4 general-purpose registers, and an EEPROM-driven control unit.
69 parts2
2 layers167.6 × 134.6 mm
Motherboard
rjhelms/compe6502
Homebrew 6502 system
110 parts2
4 layers304.5 × 217.2 mm
Latest Full Backplane
Trilobyte-CPU/8-bit-computer
A DIY 8-bit computer built mostly with discrete logic chips
478 parts2
2 layers144 × 100 mm
Cpu td4
nikachu2012/td4cpu

90 parts1
2 layers99.1 × 48 mm
FC AOROM UNROM
ponchick/FC-AOROM-UNROM
Multicart Famicom cartridge PCB for AOROM, AMROM, and UNROM mappers.
24 parts1CERN-OHL-P-2.0
2 layers100.1 × 48 mm
FC DiscreteCart
ponchick/FC-DiscreteCart
Discrete logic Famicom cartridge PCB.
25 parts1CERN-OHL-P-2.0
4 layers70 × 70 mm
Gpsdo
AndreasArendt/gpsdo
Low cost GPS Disciplined Oscillator
88 partsMIT
2 layers110 × 110 mm
Custom cpu
axelo/custom-cpu
Cutom CPU built from 7400-series integrated circuits (and FLASH roms)
47 partsMIT
2 layers100 × 61 mm
Holy Diver
Brink-J/Holy-Diver
Famicom Holy Diver PCB using SMT off the shelf parts
19 parts
2 layers209 × 175 mm
Excalibur64
Cptscorcher/Excallibur-64
A reimagining of the seminal Excalibur 64 Computer
126 partsGPL-3.0
2 layers301 × 262.6 mm
1 Sistema FINAL
felipesantiagoach-ops/cdp1802-8bit-computer
8-bit microcomputer based on the RCA CDP1802, the first CMOS microprocessor. Three stages designed in KiCad: two built and tested (assembly programs, UART, Tiny BASIC, Elf/OS) and a final design with an ADC, I²C/SPI…
207 parts
4 layers181.5 × 182.3 mm
Stencil
jerry-kerenzikov/ytterbium
Project files for Ytterbium modular CPU platform and Yprog programming tool
421 partsCERN-OHL-S-2.0