The DM74LS93N is a 4-Bit Binary Counter manufactured by National Semiconductor (now Texas Instruments). This TTL (Transistor-Transistor Logic) device consists of four master-slave flip-flops internally interconnected to provide a divide-by-two and a divide-by-eight counter. It is designed for a wide range of counting and frequency division applications.

Applications

• Frequency dividers
• Binary counters
• Digital clocks
• Timers
• Control circuits

Features

• 4-Bit Binary Counter: Provides counting up to 16 states.
• Divide-by-Two and Divide-by-Eight Sections: Offers flexible counting and frequency division options.
• TTL Logic: Compatible with other TTL devices.
• High Noise Immunity: Provides reliable operation in noisy environments.
• DIP Package: Easy to use with breadboards and prototyping boards.

Benefits

• Versatile Counting: Can be used in a variety of counting and frequency division applications.
• Easy to Use: Simple to interface with other TTL devices.
• Reliable Operation: High noise immunity ensures stable performance.
• Cost-Effective: A relatively inexpensive solution for counting and frequency division.
• Simple Implementation: Simplifies the design of digital circuits.

Additional Details

The DM74LS93N is commonly used in digital systems requiring counting or frequency division. The counter is reset to zero by applying a high level to both Reset inputs (R0(1) and R0(2)). A high level on the Clock input (A) toggles the first flip-flop (divide-by-two section). The output of the first flip-flop can be used as the clock input for the second flip-flops (divide-by-eight section). This allows the device to be used as a single divide-by-sixteen counter. The supply voltage is typically 5V. The package is a 14-pin DIP (Dual In-line Package). It's important to note that this part is often designated as END-OF-LIFE and sourcing may be limited.