Harit Shah
Published

7400 Series Logic Clock

This project is 7400 series logic ICs based clock. It keeps time solely based on discrete logic ICs and a stable clock source.

IntermediateFull instructions provided3 hours367
7400 Series Logic Clock

Things used in this project

Hardware components

INND-TS56RAB
7 Segment LED Display, 0.56", common anode
×6
SN74LS47N
BCD to seven segment decoder/driver
×6
SN74HC74N
Flip Flops Dual w/Clear Preset
×1
SN74HC00N
Logic Gates Quad 2-Input, NAND
×1
SN74HC393N
Counter ICs Dual 4-Bit Binary
×2
SN74HC08N
Logic Gates Quad 2-Input, AND
×1
SN74HC32N
Logic Gates Quadruple 2-Input Positive-OR Gates
×1
SN74LS190N
Counter ICs Synchronous up/down decade counters
×1
DILB16P-223TLF
IC & Component Sockets 16P SOCKET
×7
DILB14P-223TLF
IC & Component Sockets 14P DIP SOCKET
×6
FG18X7R1E105KRT06
1uF, ceramic, 2.5mm lead spacing
×13
MBA02040C1210FC100
121 ohm resistor, thru hole, diameter = 1.6mm
×46
MBA02040C4701FC100
4.7k ohm resistor, diameter = 1.6mm
×1
TLVH4200
Red LED, width=3.3mm
×1
1 Hz Clock Source
×1

Software apps and online services

KiCad
KiCad

Story

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Schematics

KiCad design files

Schematic

Layout

3D View

Credits

Harit Shah

Harit Shah

4 projects • 3 followers
Hardware Engineer with 7+ years’ experience in designing, managing, and testing of both digital and RF modules

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