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

The post 74LS273 appeared first on The Geek Pub.

The 74LS244 is an octal buffer/line driver with 3-state outputs, and it belongs to the 74LS family of integrated circuits. This family is part of the larger 7400 series, which consists of various digital logic ICs (integrated circuits) designed for different applications. The “74” in the name indicates that it is a standard TTL (Transistor-Transistor Logic) device.

Here are some key features and details about the 74LS244:

1. Functionality:
   • The 74LS244 is designed as an octal buffer, meaning it has eight separate buffer channels.
   • Each channel is capable of driving high or low logic levels and can be individually enabled or disabled.
   • The device is used to control the flow of data between two buses or systems.
2. 3-State Outputs:
   • The outputs of the 74LS244 are 3-state, which means they can be in one of three states: high, low, or high-impedance (disconnected).
   • The high-impedance state allows multiple devices to be connected to the same bus without causing conflicts.
3. Pin Configuration:
   • The IC comes in a 20-pin dual in-line package (DIP).
   • It has eight input pins (A1 to A8) and eight corresponding output pins (Y1 to Y8).
   • The device also features an active-low output enable pin (OE), which controls the 3-state outputs.
4. Voltage and Power:
   • The 74LS244 typically operates with a power supply voltage of 4.75 to 5.25 volts.
   • Power consumption is relatively low compared to more modern technologies.
5. Applications:
   • The 74LS244 is commonly used in digital systems for bus buffering, data line driving, and signal isolation.
   • It finds applications in various electronic devices and projects where multiple components need to communicate with each other.
6. Compatibility:
   • The 74LS244 is compatible with other TTL devices, making it easy to integrate into existing digital circuits that use TTL logic.

It’s important to note that the 74LS series, including the 74LS244, is an older technology. While it may still be used in some applications, more modern families of ICs like CMOS (Complementary Metal-Oxide-Semiconductor) and other advanced technologies are now prevalent in digital design due to their improved performance and lower power consumption.

Arcade Games and Pinball Machines that Use 74LS244

The following arcade games and pinball machines use the 74LS244 on their PCBs:

• 1943
• Asteroids
• Battlezone
• Bubble Bobble
• Donkey Kong
• Dragon’s Lair
• Gyruss
• Hard Drivin’
• Ice Cold Beer
• Major Havoc
• Missile Command
• Ms. Pac-Man
• NBA Jam
• Nibbler
• Pac-Man
• Pole Position
• Qix
• Red Baron
• Road Blasters
• Robotron
• Space Duel
• Superman
• Tempest
• Tron
• Wizard of Wor
• Zoo Keeper
• many others…

74LS244 / 74LS244N Pinout

The following represents the pinout of the 74LS244N in a DIP-20 package, commonly used in arcade and pinball machines.

• PIN 1:Channel 1 output enable
• PIN 2: Channel 1, A side 1
• PIN 3: Channel 2, Y side 4
• PIN 4: Channel 1, A side 2
• PIN 5: Channel 2, Y side 3
• PIN 6: Channel 1, A side 3
• PIN 7: Channel 2, Y side 2
• PIN 8: Channel 1, A side 4
• PIN 9:Channel 2, Y side 1
• PIN 10: Ground
• PIN 11: Channel 2, A side 1
• PIN 12: Channel 1, Y side 4
• PIN 13: Channel 2, A side 2
• PIN 14: Channel 1, Y side 3
• PIN 15: Channel 2, A side 3
• PIN 16: Channel 1,Y side 2
• PIN17: Channel 2, A side 4
• PIN 18: Channel 1, Y side 1
• PIN 19: Channel 2 output enable
• PIN 20: Vcc

74LS244 Datasheet

You can find the datasheet for the 74LS244 here: 74LS244 datasheet

The post 74LS244 appeared first on The Geek Pub.

The 74LS04 is a popular hex inverter gate integrated circuit (IC) that belongs to the 74xx series of digital logic ICs. It is widely used in electronic circuits for various applications involving digital signal processing, computer systems, and other digital devices. The “74” in its name refers to the series, and “LS” indicates that it uses Low-Power Schottky (LS) technology.

Here are some key features and information about the 74LS04:

1. Functionality:
   • The 74LS04 contains six independent inverters, each of which takes an input signal and produces its logical complement (inverted output).
   • The inverter is a fundamental logic gate that outputs the opposite logic level of its input.
2. Pin Configuration:
   • The IC has 14 pins, with pin 7 being the ground (GND) and pin 14 the positive power supply (Vcc).
   • Each of the six inverters has its input (labeled as 1A, 2A, 3A, 4A, 5A, and 6A) and output (labeled as 1Y, 2Y, 3Y, 4Y, 5Y, and 6Y).
3. Electrical Characteristics:
   • Supply Voltage (Vcc): Typically operates at 5 volts.
   • High-Level Output Voltage (Voh): Minimum voltage at which a logic high is guaranteed.
   • Low-Level Output Voltage (Vol): Maximum voltage at which a logic low is guaranteed.
   • High-Level Input Voltage (Vih): Minimum voltage that is recognized as a logic high.
   • Low-Level Input Voltage (Vil): Maximum voltage that is recognized as a logic low.
4. Applications:
   • The 74LS04 is commonly used in digital circuits where signal inversion is required.
   • It can be used as a building block for more complex logic functions by combining multiple ICs.
5. Technology:
   • The 74LS04 uses Low-Power Schottky (LS) technology, which is a type of bipolar transistor-transistor logic (TTL).
6. Compatibility:
   • It is important to note that the 74LS04 has compatibility with other TTL ICs. However, it may not be directly compatible with CMOS logic families without proper interfacing.

When working with the 74LS04 or any other IC, it’s essential to refer to the manufacturer’s datasheet for detailed specifications, electrical characteristics, and application information. The datasheet provides valuable information for proper usage and integration into electronic circuits.

Arcade Games and Pinball Machines that Use 74LS04

The following arcade games and pinball machines use the 74LS04 on their PCBs:

• 1943
• Centipede
• Defender
• Donkey Kong Jr.
• Frogger
• Gorf
• Hard Drivin’
• Joust
• Lunar Lander
• Major Havoc
• Millipede
• Moon Patrol
• Mortal Kombat 4
• Road Blasters
• Phoenix
• Pole Position
• Popeye
• Qix
• Rampage
• Space Invaders
• Spy Hunter
• Stargate
• Star Wars
• Super Punch Out
• Tempest
• Warlords
• Zoo Keeper
• many others…

74LS04 / 74LS04N Pinout

The following represents the pinout of the 74LS04N in a DIP-14 package, commonly used in arcade and pinball machines.

• PIN 1: A1 Input
• PIN 2: Y1 Output
• PIN 3: A2 Input
• PIN 4: Y2 Output
• PIN 5: A3 Input
• PIN 6: Y3 Output
• PIN 7: Ground
• PIN 8: Y4 Output
• PIN 9: A3 Input
• PIN 10: Y5 Output
• PIN 11: A5 Input
• PIN 12: Y6 Output
• PIN 13: A6 Input
• PIN 14: Vcc

74LS04 Datasheet

You can find the datasheet for the 74LS04 here: 74LS04 datasheet

The post 74LS04 appeared first on The Geek Pub.

The 74LS74 is a popular integrated circuit (IC) that belongs to the TTL (Transistor-Transistor Logic) family. It is a dual D-type flip-flop, meaning it contains two separate flip-flops in a single package. The 74LS74 is widely used in digital electronics for various applications, including sequential logic and data storage.

Here are some key features and details about the 74LS74:

1. Flip-Flop Type:
   • The 74LS74 consists of two independent D-type positive-edge-triggered flip-flops. The D-type flip-flop is a basic building block in digital circuits, and it stores a single bit of data.
2. Triggering Edge:
   • The flip-flops in the 74LS74 are triggered on the positive edge of the clock signal. This means that the data input (D) is sampled and transferred to the output on the rising edge of the clock signal.
3. Inputs:
   • It has three main inputs for each flip-flop:
     • D (Data Input): The input to which the data to be stored is applied.
     • CLK (Clock Input): The clock signal that controls the timing of the flip-flop.
     • CLR (Clear): An active-low clear input that resets the flip-flop to its initial state.
4. Outputs:
   • Q and Q’ (Q-bar): These are the complementary outputs of each flip-flop. The state of the flip-flop is reflected in these outputs.
5. Power Supply:
   • The typical power supply voltage for the 74LS74 is in the range of 4.75V to 5.25V.
6. Package:
   • The 74LS74 is available in various packages, such as DIP (Dual Inline Package) and SOIC (Small Outline Integrated Circuit).
7. Applications:
   • The 74LS74 is commonly used in digital systems for tasks such as frequency dividers, shift registers, counters, and other sequential logic applications.

When using the 74LS74, it’s important to consider the specific datasheet for the device, as it provides detailed information on electrical characteristics, timing diagrams, and recommended operating conditions. The information provided here is a general overview, and actual usage may vary depending on the specific requirements of your circuit.

Arcade Games and Pinball Machines that Use 74LS74

The following arcade games and pinball machines use the 74LS74 on their PCBs:

• 1943
• Arkanoid
• Bubble Bobble
• Burgertime
• Centipede
• Donkey Kong
• Galaxian
• Gyruss
• Joust
• Jr. Pac-Man
• Macross
• Major Havok
• Moon Patrol
• Mortal Kombat 2
• Ms. Pac-Man
• Pac-Man
• Paperboy
• Phoenix
• Pole Position 1/2
• Red Barron
• Robotron
• Sea Wolf
• Tempest
• Time Soldier
• many others…

74LS74 / 74LS74N Pinout

The following represents the pinout of the 74LS74N in a DIP-14 package, commonly used in arcade and pinball machines.

• PIN 1: Clear Data
• PIN 2: Data Input 1
• PIN 3: Clock Input 1
• PIN 4: PRE Input 1
• PIN 5: Q1 Output
• PIN 6: Q1 Inverted Output
• PIN 7: Ground
• PIN 8: Q2 Inverted Output
• PIN 9: Load
• PIN 10: PRE Input 2
• PIN 11: Clock Input 2
• PIN 12: Data Input 2
• PIN 13: Clear Data
• PIN 14: Vcc

74LS74 Datasheet

You can find the datasheet for the 74LS74 here: 74LS74 datasheet

The post 74LS74 appeared first on The Geek Pub.

The 74LS161 is a 4-bit binary counter IC (integrated circuit) that is commonly used in digital electronic circuits. It belongs to the TTL (Transistor-Transistor Logic) family of ICs and is widely used in various applications, including digital counters, frequency dividers, and general-purpose digital systems.

Here are some key features and characteristics of the 74LS161:

1. Number of Counting Bits: The 74LS161 is a 4-bit counter, meaning it can count in binary from 0000 (binary) to 1111 (binary).
2. Counting Modes: It can operate in either a synchronous or asynchronous counting mode. In synchronous mode, all the bits of the counter change state simultaneously, whereas in asynchronous mode, the bits change state one at a time.
3. Parallel Load (Load) Input: This input allows you to preset the counter to a specific binary value by applying the desired input to the parallel data inputs (D0, D1, D2, D3) and then asserting the LOAD input.
4. Clock (CLK) Input: The clock input is used to advance the counter on each clock pulse. In synchronous mode, the counter responds to the clock input, while in asynchronous mode, the counter advances on each rising edge of the clock signal.
5. Clear (CLR) Input: This input is used to clear the counter to zero. When CLR is asserted, all the outputs become low.
6. Ripple Carry Output (RCO): The 74LS161 has a ripple carry output that can be connected to the clock input of another 74LS161 or similar counter to expand the counting capability.
7. Carry Look-Ahead (CLA): The 74LS161 features carry look-ahead functionality, which helps improve the speed of carry propagation in cascaded counters.
8. Power Supply: Typically operates with a power supply voltage (Vcc) in the range of 4.75V to 5.25V.

It’s important to refer to the datasheet of the specific manufacturer for detailed information on electrical characteristics, timing diagrams, and recommended operating conditions. The 74LS161 is widely available and has been used in a variety of digital electronics projects over the years.

Arcade Games and Pinball Machines that Use 74LS161

Here’s a list of arcade games and pinball machines that use the the 74LS161 on their PCBs.

• Asteroids
• Battlezone
• Centuri
• Circus Charlie
• Dig Dug
• Frogger
• Gorf
• Mouse Trap
• Ms. Pac-Man
• Outrun
• Pac-Man
• Paperboy
• Pole Postion 1/2
• Pong
• Popeye
• Red Barron
• Road Blasters
• Sea Wolf
• Space Invaders
• Star Wars
• Tempest
• many others…

74LS161 / 74LS161N Pinout

The following represents the pinout of the 74LS161N in a DIP-16 package, commonly used in arcade and pinball machines.

• PIN 1: CLEAR
• PIN 2: CLOCK
• PIN 3: A Input 1
• PIN 4: B Input 2
• PIN 5: C Input 3
• PIN 6: D Input 4
• PIN 7: Enable P
• PIN 8: Ground
• PIN 9: Load
• PIN 10: Enable T
• PIN 11: D Output 4
• PIN 12: C Output 3
• PIN 13: B Output 2
• PIN 14: A Output 1
• PIN 15: Ripple Carry Output
• PIN 16: Vcc

74LS161 Datasheet

You can find the datasheet for the 74LS161 here: 74LS161 datasheet

The post 74LS161 appeared first on The Geek Pub.

The 74LS157 is a quad 2-input multiplexer chip, which is part of the 74LS series of TTL (Transistor-Transistor Logic) integrated circuits. It is commonly used in digital electronics and can be found in various applications such as data selectors, bus drivers, and other multiplexing tasks.

Here are some key features and specifications of the 74LS157:

1. Quad 2-Input Multiplexer: The chip contains four independent 2-input multiplexers. Each multiplexer has two data inputs (A and B), one select input (S), and one output (Y).
2. Select Inputs (S): The select inputs determine which input (A or B) is connected to the output. Depending on the binary value applied to the select inputs, one of the inputs is chosen for each multiplexer.
3. Output Enable (OE) Pin: The 74LS157 usually includes an output enable pin (OE) that, when activated, allows the selected data to pass through to the output. When the OE input is high, the outputs are in a high-impedance state, effectively disconnecting them.
4. Standard TTL Compatibility: The 74LS series uses TTL technology, which operates with a power supply voltage in the range of 4.75 to 5.25 volts. It is important to note that this technology is older, and more modern logic families like CMOS (Complementary Metal-Oxide-Semiconductor) or advanced TTL versions (e.g., 74HC, 74HCT) might be preferred in contemporary digital designs.
5. Pin Configuration: The 74LS157 is packaged in a 16-pin dual in-line package (DIP) with specific pins allocated for power supply, ground, input data lines, select lines, and output.

It’s important to consult the datasheet for the specific manufacturer and variant of the 74LS157 that you are using, as there might be slight variations in features or pin configurations between different manufacturers. Additionally, newer and more power-efficient technologies may be preferred in modern digital designs, but the 74LS157 and similar chips are still used in educational settings and for specific applications.

Arcade Games and Pinball Machines that use 74LS157

The following arcade games and pinball machines use the 74LS157:

• 1943
• Asteroids
• Centipede
• Centuri Eagle
• Choplifter
• Donkey Kong
• Galaga
• Galaxian
• Hang-on
• Jr. Pac-Man
• Mad Planets
• Major Havoc
• Millepede
• Missile Command
• Moon Patrol
• Omega Race
• Outrun
• Punch Out
• Qix
• Rampage
• Space Invaders
• Tempest
• Up’n Down
• Zoo Keeper
• many others…

74LS157 / 74LS157N Pinout

The following represents the pinout of the 74LS157N in a DIP-16 package, commonly used in arcade and pinball machines.

• PIN 1: A/B Select
• PIN 2: A Input 1
• PIN 3: A Input 2
• PIN 4: A Output
• PIN 5: B Input 1
• PIN 6: B Input 2
• PIN 7: B Output
• PIN 8: Ground
• PIN 9: C Output
• PIN 10: C Input 2
• PIN 11: C Input 1
• PIN 12: D Output
• PIN 13: C Input 2
• PIN 14: C Input 1
• PIN 15: Strobe
• PIN 16: Vcc

74LS157 Datasheet

You can find the datasheet for the 74LS157 here: 74LS157 datasheet

The post 74LS157 appeared first on The Geek Pub.

The 74LS245 is an integrated circuit (IC) that belongs to the 74LS family of TTL (Transistor-Transistor Logic) chips. It is commonly used as an octal bus transceiver, meaning it can control the bidirectional transfer of data between two buses. The 74LS245 is designed to facilitate the transfer of data between devices that operate at different voltage levels.

Here are some key features and characteristics of the 74LS245:

1. Eight Channels: The IC has eight bidirectional data channels, allowing it to handle eight bits of data simultaneously.
2. Tri-State Outputs: The 74LS245 features tri-state outputs, which means that each data channel can be in one of three states: high, low, or high-impedance (Z). The high-impedance state effectively disconnects the output from the bus, allowing for multiple devices to share the same bus without interference.
3. Direction Control: The IC includes control inputs for direction control, usually labeled as “DIR” or similar. This input determines the direction of data flow, allowing the 74LS245 to function as either a bus transceiver or a buffer.
4. Voltage Compatibility: The 74LS245 is designed to be compatible with TTL logic levels, typically operating with a supply voltage of 5V. This makes it suitable for interfacing between devices that operate at different voltage levels.
5. Package Options: The IC is available in various package types, such as DIP (Dual Inline Package) and SOP (Small Outline Package), making it versatile for different applications and circuit designs.

When using the 74LS245, it’s essential to follow the datasheet provided by the manufacturer, as it contains detailed information on electrical characteristics, pinouts, recommended operating conditions, and timing diagrams. This will ensure proper integration into your electronic circuits.

Arcade Games and Pinball Machines that Use 74LS245

The following arcade games and pinball machines use the 74LS245 on their PCBs:

• 1943
• Asteroids
• Centipede
• Donkey Kong
• Galaga
• Galaxian
• Gyruss
• Jr. Pac-Man
• Lunar Lander
• Mario Brothers
• Millipede
• Phoenix
• Qix
• Robotron
• Spy Hunter
• Street Fighter
• Tempest
• Zoo Keeper
• many others…

74LS245 / 74LS245N Pinout

The following represents the pinout of the 74LS245N in a DIP-20 package, commonly used in arcade and pinball machines.

• PIN 1: Controls signal direction; Low=Bx to Ax, High=Ax to Bx
• PIN 2: Channel 1, A side
• PIN 3: Channel 2, A side
• PIN 4: Channel 3, A side
• PIN 5: Channel 4, A side
• PIN 6: Channel 5, A side
• PIN 7: Channel 6, A side
• PIN 8: Channel 7, A side
• PIN 9: Channel 8, A side
• PIN 10: Ground
• PIN 11: Channel 8, B side
• PIN 12: Channel 7, B side
• PIN 13: Channel 6, B side
• PIN 14: Channel 5, B side
• PIN 15: Channel 4, B side
• PIN 16: Channel 3, B side
• PIN 17: Channel 2, B side
• PIN 18: Channel 1, B side
• PIN 19: Active low output enable; Low=all channels active, High=all channels disabled (high impedance)
• PIN 20: Power supply Vcc

74LS245 Datasheet

You can find the datasheet for the 74LS245 here: 74LS245 datasheet

The post 74LS245 appeared first on The Geek Pub.

Here are some key features and characteristics of the 74LS00:

1. Quad 2-Input NAND Gates: The IC consists of four NAND gates, and each gate has two inputs (A and B) and one output (Y).
2. Technology: The 74LS00 uses Low-Power Schottky (LS) technology. This technology is known for providing a balance between speed and power consumption.
3. Power Supply Voltage: Typically operates with a power supply voltage of 4.75V to 5.25V.
4. Logic Levels: In the TTL logic family, a HIGH (logical 1) is typically represented by a voltage close to the power supply voltage (Vcc), and a LOW (logical 0) is represented by a voltage close to ground (0V).
5. Pin Configuration:
   • Pin 7: Ground (GND)
   • Pin 14: Power Supply Voltage (Vcc)
   • Pins 1, 2, 4, 5, 9, 10, 12, 13: Input and Output pins of the four NAND gates.
6. Propagation Delay: The 74LS00 has a propagation delay, which is the time it takes for a change in input to result in a change in output. The specific value may vary, but it is generally in the range of a few nanoseconds.
7. Operating Temperature Range: The 74LS00 is designed to operate within a specified temperature range. Common temperature ranges are 0°C to 70°C or -40°C to 85°C.
8. Package Type: It is available in various package types, such as DIP (Dual Inline Package), SOIC (Small Outline Integrated Circuit), and others.

The 74LS00 is often used in digital electronic circuits for logic operations. Its versatile nature makes it suitable for a wide range of applications, including but not limited to arithmetic operations, data processing, and control logic in electronic systems. Keep in mind that technology has advanced since the introduction of the 74LS series, and newer families of ICs with improved features and performance have become available.

Arcade Games and Pinball Machines that Use 74LS00

• Asteroids
• Battlezone
• Berzerk
• Black Knight
• Breakout
• BurgerTime
• Centipede
• Defender
• Donkey Kong 3
• Food Fight
• Frogger
• Galaga
• Galaxian
• Gorf
• Gunfight
• Joust
• Lethal Enforcers
• Major Havok
• Mario Brothers
• Moon Patrol
• Ms. Pac-Man
• Pac-Man
• Pong
• Popeye
• Qix
• Red Barron
• Robotron
• Space Invaders
• Stargate
• Star Trek
• Star Wars
• Tempest
• Vanguard
• Zoo Keeper
• many others…

74LS00 / 74LS00N Pinout

The following represents the pinout of the 74LS00N in a DIP-14 package, commonly used in arcade and pinball machines.

• PIN 1: A1 – Gate 1 INPUT
• PIN 2: B1 – Gate 1 INPUT
• PIN 3: Y1 – Gate 1 OUTPUT
• PIN 4: A2 – Gate 2 INPUT
• PIN 5: B2 – Gate 2 INPUT
• PIN 6: Y2 – Gate 2 OUTPUT
• PIN 7: Y2 – Ground
• PIN 8: Y3 – Gate 3 OUTPUT
• PIN 9: A3 – Gate 3 INPUT
• PIN 10: B3 – Gate 3 INPUT
• PIN 11: Y4 – Gate 4 OUTPUT
• PIN 12: A4 – Gate 4 INPUT
• PIN 13: B4 – Gate 4 INPUT
• PIN 14: Vcc

74LS00 Datasheet

You can find the datasheet for the 74LS00 here: 74ls00 datasheet

The post 74LS00 appeared first on The Geek Pub.

• Alien Voice Box I & II
• Apple Mockingboard*
• Black Hole pinball
• Caveman arcade
• Devil’s Dare pinball
• Haunted House pinball
• Heathkit HERO 01 (ET-18)
• Heathkit HERO Jr. (RT-1)
• Gorf arcade
• Krull arcade
• Q*Bert arcade
• Reactor arcade
• Rocky arcade
• Striker arcade
• Votrax Type ‘N Talk
• Wizard of Wor arcade game

* The SC-01 emulator does not work with the Mockingboard clones from Reactive Micro.

The post SC-01 Speech Chip Replacement/Emulator (Votrax) appeared first on The Geek Pub.