SN74HC393NG4

The SN74HC393NG4 is a dual 4-bit binary ripple counter integrated circuit (IC) manufactured by Texas Instruments. It belongs to the 74HC (High-speed CMOS) family, which is known for its high-speed operation and low power consumption. Here’s a detailed description of its features and specifications:

General Features:

• Dual Counter: The SN74HC393 contains two independent 4-bit binary counters, allowing for versatile counting applications.
• Ripple Counter Design: The counters operate in a ripple mode, meaning that the output of one counter stage serves as the clock input for the next stage, enabling counting in binary format.
• High-Speed Operation: The device can operate at high frequencies, making it suitable for fast digital circuits.
• Low Power Consumption: The CMOS technology used in the SN74HC393 ensures low static and dynamic power consumption, which is beneficial for battery-operated devices.

Pin Configuration:

• The SN74HC393 is typically available in a 16-pin DIP (Dual In-line Package) or other package types such as TSSOP (Thin Shrink Small Outline Package).
• The pins include:
  • Clock Inputs (A and B): Each counter has its own clock input, which triggers the counting operation.
  • Reset Inputs (A and B): Active-low reset pins allow for resetting the counters to zero.
  • Output Pins (Q0 to Q3): Each counter has four output pins representing the binary count.
  • Carry-Out Pins: These pins indicate when the counter has reached its maximum count and can be used to cascade multiple counters.

Electrical Characteristics:

• Supply Voltage (Vcc): The device typically operates within a supply voltage range of 2V to 6V.
• Input Voltage Levels: The input high voltage (VIH) and input low voltage (VIL) levels are defined to ensure proper logic level recognition.
• Output Drive Capability: The outputs can drive standard TTL loads, making it compatible with a wide range of digital circuits.

Applications:

• Frequency Division: The SN74HC393 can be used to divide frequencies in digital circuits.
• Event Counting: It is suitable for applications that require counting events, such as in digital clocks or timers.
• State Machines: The counters can be used in finite state machines for various control applications.

Package Information:

• The "NG4" suffix indicates that the part is available in a specific package type and is RoHS compliant, meaning it is free from hazardous substances.

Summary:

The SN74HC393NG4 is a versatile and efficient dual 4-bit binary counter that is ideal for a variety of digital counting applications. Its high-speed performance, low power consumption, and compatibility with other digital logic families make it a popular choice among engineers and designers in the field of electronics.