The MB74LS393PF is a dual 4-bit binary counter manufactured by Fujitsu. It is part of the 74LS series of TTL (Transistor-Transistor Logic) integrated circuits, known for their low-power Schottky characteristics, offering a balance of speed and power consumption. This counter is useful for implementing various counting functions in digital systems.

Applications

• Frequency division
• Digital timers
• Event counters
• Address generation
• Control circuits

Features

• Dual 4-bit binary counters
• Separate clock and reset inputs for each counter
• Cascadable for higher-bit counting
• Asynchronous reset
• Low power consumption
• TTL compatible inputs and outputs

Benefits

• Versatile building block for digital counting applications
• Easy to implement binary counting functions
• Reduces component count in digital designs
• Expandable for larger counting ranges
• Compatible with other TTL logic devices

Additional Details

The MB74LS393PF contains two independent 4-bit binary counters within a single package. Each counter has its own clock and reset inputs. The counters increment on the positive-going edge of the clock pulse. The reset input is asynchronous, meaning that it can reset the counter regardless of the clock input. The counters can be cascaded to create counters with larger bit widths. The device operates from a 5V power supply and has TTL-compatible input and output levels.

The 'LS' designation indicates that the device uses Low-power Schottky technology, which provides a good compromise between speed and power consumption. The MB74LS393PF is commonly used in a variety of digital circuits, including frequency dividers, event counters, and timers. Refer to the manufacturer's datasheet for detailed electrical characteristics, timing diagrams, and application information. When using this device, ensure that proper decoupling capacitors are used to minimize noise and ensure stable operation. Adhere to the recommended operating conditions specified in the datasheet to prevent damage or malfunction.