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ttl power supply with crowbar protection
Power supplies designed for use with TTL logic circuitry must protect against over-voltage, which can rapidly damage TTL chips. The duration of over-voltage that can harm TTL chips is too short to activate any conventional fuse, necessitating the use of...
Wide-frequency-ttl-clock
This free-running TTL square-wave oscillator features a variable frequency output spanning a 20:1 range or better. It utilizes four of the six inverters in an SN7404 chip along with additional components. The frequency of oscillation is dictated by the capacitor...
Simple Quiz Display
A simple quiz display is constructed using two TTL ICs: the 7445 and the 7420. It indicates which switch is pressed first, accompanied by a circuit diagram. This project represents an interesting and verified game concept.
The circuit utilizes the TTL...
Combinational Logic Circuits using Logic Gates
Electronics tutorial on combinational logic circuits that utilize logic gates to create multiplexers, encoders, and solid-state switches.
Combinational logic circuits are fundamental components in digital electronics, characterized by their ability to produce outputs based solely on the current inputs, without any...
Schematics of TTL CPU
The third Eagle layout of the program counter has been completed, presenting a clearer design compared to the previous iterations, which were cluttered with intersecting wires, making it difficult to discern connections. This diagram is intended to facilitate understanding of...
TTL Three - State Logic Probe PCB
A TTL logic probe is an essential tool for troubleshooting digital circuits. Various methods can be utilized to design a logic probe. The most common designs incorporate operational amplifiers, logic gates (OR, NOT, XOR), and transistors. The circuit described here...
Logic Circuits Vs Transistor Power Circuits
Invert a signal to drive FETs with rapid rise and fall times. It was suggested to use an inverter (not a chip) instead of logic chips, which are designed to be either fully ON or OFF. The individual has prior...
TTL integrated circuits made of a crystal oscillator
Crystal oscillator integrated circuits, specifically two diagrams of oscillator circuits with oscillation frequencies of 10 MHz and 20 MHz.
Crystal oscillators are essential components in various electronic applications, providing stable frequency references for timing and synchronization purposes. The circuits presented include...
electrical engineering logic gates
Design a circuit with four single-bit inputs X, Y, T, and Z, and a single-bit output E. A two-bit control code word S0S1 determines which of the four inputs is sent to the output (the selection code is not unique)....