74hc

An old school digital clock made using transistor-transistor logic chips: counters, logic gates, flip-flops and other integrated circuits.

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.

Discrete 74HC logic Manchester decoder with JLC EDA Pro and Altium source exports.

Microcontroller-free 4-digit keypad lock built from 74xx/CD4000 logic ICs with unauthorized-access alert. Proteus simulation + Verilog model.

Modelos SPICE y símbolos para las familias 74HC, 74HCT y CD4000.

Switch-selectable digital frequency divider improved and integrated from Tsinghua University's Basic Experiments for Electronic Circuits and Systems course.

Contains the detailed description about 16bit hardware ALU developed using 74HC (XOR,AND,OR,MUX) ICs only.