SN74HC4040APWR

The SN74HC4040APWR is a high-speed CMOS binary ripple counter produced by Texas Instruments. It is part of the 74HC family of logic devices, which are known for their high-speed performance and low power consumption. Here’s a detailed description of the SN74HC4040APWR:

General Features:

• Type: 12-stage binary ripple counter
• Technology: High-speed CMOS (Complementary Metal-Oxide-Semiconductor)
• Supply Voltage: Operates typically between 2V to 6V, making it versatile for various applications.
• Power Consumption: Low static power consumption, which is a hallmark of CMOS technology.

Pin Configuration:

The SN74HC4040APWR is available in a 14-pin TSSOP (Thin Shrink Small Outline Package) form factor. The pin configuration includes:

• VCC (Pin 14): Power supply pin.
• GND (Pin 7): Ground pin.
• Clock Input (Pin 2): The clock signal is applied here to increment the counter.
• Reset (Pin 3): Active-high reset input to clear the counter.
• Q Outputs (Pins 1, 11, 10, 9, 8, 6, 5, 4): These pins provide the binary output of the counter, representing the current count in binary form.

Functionality:

• Counting: The SN74HC4040APWR counts in binary from 0 to 4095 (2^12 - 1) and then rolls over to 0. Each clock pulse increments the count by one.
• Ripple Counter: It operates as a ripple counter, meaning that the output of one stage serves as the clock input for the next stage, which can introduce propagation delays.
• Reset Functionality: The counter can be reset to zero asynchronously using the reset pin, allowing for easy control of the counting sequence.

Electrical Characteristics:

• Input Voltage Levels: The device is compatible with standard TTL logic levels, making it suitable for interfacing with other digital logic devices.
• Output Drive Capability: The outputs can drive standard TTL loads, providing flexibility in circuit design.
• Propagation Delay: The typical propagation delay for the clock input to the output is low, ensuring fast counting operations.

Applications:

The SN74HC4040APWR is widely used in various applications, including:

• Frequency division
• Digital clocks
• Event counters
• Timer circuits
• Frequency synthesizers

Packaging:

The device is packaged in a TSSOP-14 (Thin Shrink Small Outline Package), which is compact and suitable for space-constrained applications. The TSSOP package allows for efficient thermal dissipation and is compatible with automated assembly processes.

Conclusion:

The SN74HC4040APWR from Texas Instruments is a reliable and efficient binary counter that combines high-speed performance with low power consumption. Its versatility and ease of use make it a popular choice for digital counting applications in both consumer and industrial electronics.