74LS273 replacement chip. DIP-20. Octal D-type flip-flop with clear.
Arcade Games and Pinball Machines that Use 74LS273
The following arcade games and pinball machines use the 74LS273 on their PCBs:
- 1942
- 1943
- Asteroids
- Centipede
- Centuri Eagle
- Donkey Kong 3
- Double Dragon
- Gun Smoke
- Galaga
- Gyruss
- Hyper Sports
- Lady Bug
- Lethal Enforcers
- Major Havoc
- Millipede
- Missile Command
- Ms. Pac-Man
- Pac-Man
- Rastan
- Space Duel
- Spy Hunter
- Star Wars
- Street Fighter
- Tapper
- Teenage Mutant Ninja Turtles TMNT
- Tempest
- Tron
- Track & Field
- many others…
74LS273 / 74LS273N Pinout
The following represents the pinout of the 74LS273N in a DIP-20 package, commonly used in arcade and pinball machines.
- PIN 1: Clear
- PIN 2: Q1 Output
- PIN 3: D1 Input
- PIN 4: D2 Input
- PIN 5: Q2 Output
- PIN 6: Q3 Output
- PIN 7: D3 Input
- PIN 8: D4 Input
- PIN 9: Q4 Output
- PIN 10: Ground
- PIN 11: Clock
- PIN 12: Q5 Output
- PIN 13: D5 Input
- PIN 14: D6 Input
- PIN 15: Q6 Output
- PIN 16: Q7 Output
- PIN17: D7 Input
- PIN 18: D8 Input
- PIN 19: Q8 Output
- PIN 20: Vcc
74LS273 Datasheet
You can find the datasheet for the 74LS273 here: 74LS273 datasheet
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