"digital"-tagged Public Circuits

Basic (CMOS) Inverter PUBLIC

MOSFET (CMOS) inverter

by ACDC | updated June 19, 2013

basic   digital   inverter   mosfet   transistor  

Digital button array PUBLIC

by duckie68 | updated April 17, 2013

arduino   array   digital   pushbutton  

MOSFET logic gate counter-example PUBLIC

a messy demonstration to show that swapping the PDN and PUN while inverting the output is not equivalent to the original circuit

by stashcraft | updated February 07, 2013

cmos   digital   logic-gate   mosfet  

NOR BJT Circuit PUBLIC

This is a way I have constructed a NOR TTL Logic Gate using NPN BJT transistors.

by digitalcircuitman777 | updated January 25, 2013

bjt   digital   digitalcircuitman777   logic-gate   nor   transistor   ttl  

Arduino DUE PUBLIC

A detailed layout of the new Arduino Uno made entirely of box pieces; includes all pins as well as both USB ports and DC input jack.

by titous | updated December 24, 2012

analog   arduino   communication   dac   dc   digital   due   pwm   usb  

Adder PUBLIC

by MatheusAlc | updated December 10, 2012

alu   digital   part   test  

winston oscillator PUBLIC

by elmirtrako | updated October 17, 2012

digital  

CT_to_digital_pin_with_indicator PUBLIC

by Sergegsx | updated September 29, 2012

arduino   ct   digital   led  

4-bit ALU PUBLIC

4-bit ALU capable of binary addition and subtraction

by MH | updated September 21, 2012

adder   alu   digital   subtractor  

NAND BJT Circuit PUBLIC

This is a way I have constructed a NAND TTL Logic Gate using NPN BJT transistors.

by digitalcircuitman777 | updated August 08, 2012

bjt   digital   digitalcircuitman777   gate   logic   logic-gate   nand   transistor   ttl  

AND BJT Circuit PUBLIC

This is how I constructed an AND TTL Logic Gate using NPN BJT transistors.

by digitalcircuitman777 | updated August 08, 2012

and   bjt   digital   digitalcircuitman777   logic-gate   transistor   ttl  

OR BJT Circuit PUBLIC

This is a way I have constructed an OR TTL Logic Gate using NPN BJT transistors.

by digitalcircuitman777 | updated August 08, 2012

bjt   digital   digitalcircuitman777   logic-gate   or   transistor   ttl  

Exclusive OR (XOR) Equivalent Circuit PUBLIC

XOR gate depicted in sum-of-products representation (composed from OR, AND, NOT gates).

by mrobbins | updated July 23, 2012

digital  

Digital Full Adder with simple SRAM PUBLIC

This is a simple elegant circuit designed to add and has simple memory.

by lazycat040 | updated June 16, 2012

adder   button   digital   logic-gate   memory   simple   sram  

3-bit counter PUBLIC

Minimal 3-bit digital counter.

by speedy | updated May 18, 2012

3-bit   counter   digital   flip-flop  

Light Sensitive Counter Circuit PUBLIC

A possibly complete light sensitive counting circuit with 3 digits making use of 311, 7414, 7490, and 7447 ICs and 7-segment displays.

by lucasmoten | updated May 15, 2012

311   7-segment-display   7414   7447   7490   de-bounce   digital   led   phototransitor   schmitt-trigger  

XNOR BJT Circuit PUBLIC

This is how I constructed an XNOR TTL Logic Gate using NPN BJT transistors.

by digitalcircuitman777 | updated March 27, 2012

bjt-transistor   digital   digitalcircuitman777   logic-gate   ttl   xnor  

XOR BJT Circuit PUBLIC

This is a way I have constructed an XOR TTL Logic Gate using NPN BJT transistors.

by digitalcircuitman777 | updated March 27, 2012

bjt   digital   digitalcircuitman777   logic-gate   transistor   ttl   xor  

Debounced Input for Switch or Open-Collector PUBLIC

A Debounce circuit for use with a schmitt trigger and switches or open-collector/opto-couplers. Has 1ms debounce time as shown.

by thefekete | updated March 26, 2012

analog   debounce   digital   open-collector   schmitt   switch  

Inverter BJT Circuit PUBLIC

This is how I constructed an Inverter TTL Logic Gate using an NPN BJT transistor.

by digitalcircuitman777 | updated March 26, 2012

bjt   digital   digitalcircuitman777   inverter   logic-gate   transistor   ttl