SN74LVC823APWR

The SN74LVC823APWR is a dual 4-bit binary counter integrated circuit (IC) manufactured by Texas Instruments. It is part of the LVC (Low-Voltage CMOS) family, which is designed for low power consumption and high-speed operation. Here’s a detailed description of its features and specifications:

General Features:

• Type: Dual 4-bit binary counter
• Technology: CMOS (Complementary Metal-Oxide-Semiconductor)
• Supply Voltage: Operates typically from 1.65V to 5.5V, making it suitable for a wide range of applications, including battery-powered devices.
• Power Consumption: Low static and dynamic power consumption, which is ideal for portable applications.

Functional Description:

• Counting Mode: The SN74LVC823APWR can operate in various counting modes, including up counting, down counting, and up/down counting, depending on the configuration of the control inputs.
• Reset Functionality: It features an asynchronous reset function that allows the counter to be reset to zero regardless of the clock state.
• Clock Input: The counter increments or decrements its value on the rising edge of the clock signal, ensuring reliable operation in synchronous systems.
• Output: The counter has two sets of 4-bit outputs (Q0 to Q3 for each counter), which represent the current count value in binary form.

Pin Configuration:

• The SN74LVC823APWR is available in a TSSOP (Thin Shrink Small Outline Package) with a specific pin configuration that includes:
  • Power Supply Pins: VCC and GND for power supply connections.
  • Clock Inputs: Dedicated pins for clock signals.
  • Control Inputs: Pins for mode selection (up/down counting) and reset functionality.
  • Output Pins: Multiple output pins for the binary count value.

Electrical Characteristics:

• Input Voltage Levels: Compatible with TTL (Transistor-Transistor Logic) levels, allowing it to interface with a variety of digital logic families.
• Output Drive Capability: Capable of driving standard CMOS loads, making it versatile for different applications.
• Propagation Delay: Fast propagation delay, typically in the range of nanoseconds, ensuring high-speed operation.

Applications:

The SN74LVC823APWR is suitable for a variety of applications, including:

• Digital clocks and timers
• Frequency counters
• Event counters in industrial applications
• Frequency dividers in communication systems
• General-purpose counting applications in embedded systems

Package Information:

• Package Type: TSSOP (Thin Shrink Small Outline Package)
• Number of Pins: Typically 16 pins, providing a compact solution for space-constrained designs.

Conclusion:

The SN74LVC823APWR from Texas Instruments is a versatile and efficient dual 4-bit binary counter that combines low power consumption with high-speed performance. Its flexible counting modes and robust electrical characteristics make it an excellent choice for a wide range of digital counting applications.