Overview
The SN74HC161DR is a 4-bit synchronous binary counter produced by Texas Instruments. It is part of the 74HC series, which is widely used in digital logic applications. This component is designed for high-speed operation and is suitable for use in various digital systems, including counters, frequency dividers, and timing circuits. Its target user groups include electronics engineers and designers working on digital systems and embedded applications. The SN74HC161DR stands out for its synchronous operation, which ensures that all flip-flops within the counter change state simultaneously, providing reliable and predictable performance.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Logic Type | Binary Counter | - | Synchronous |
| Number of Bits | 4 | - | - |
| Count Direction | Up | - | - |
| Reset Type | Asynchronous | - | - |
| Maximum Clock Frequency | 25 | MHz | - |
| Trigger Type | Positive Edge | - | - |
| Supply Voltage | 4.75 - 5.25 | V | - |
| Operating Temperature | 0 - 70 | °C | - |
| Package Type | SOIC-16 | - | - |
| Pin Count | 16 | - | - |
Key Features
- Synchronous operation ensures all flip-flops change state simultaneously.
- Asynchronous reset allows for immediate counter clearing.
- High-speed operation with a maximum clock frequency of 25 MHz.
- Wide operating voltage range of 4.75V to 5.25V.
- Compact SOIC-16 package for space-efficient designs.
Applications
The SN74HC161DR is commonly used in digital systems for counting, frequency division, and timing applications. It is particularly useful in embedded systems, industrial automation, and consumer electronics. In industrial automation, it can be used in control systems for counting events or generating precise timing signals. In consumer electronics, it is often employed in devices such as digital clocks, frequency counters, and programmable logic controllers. Its synchronous operation and high-speed performance make it a reliable choice for applications requiring accurate and predictable counting.
Q & A
What is the maximum clock frequency of the SN74HC161DR?
The maximum clock frequency is 25 MHz.
What is the operating voltage range of the SN74HC161DR?
The operating voltage range is 4.75V to 5.25V.
Is the SN74HC161DR a synchronous or asynchronous counter?
It is a synchronous counter.
What is the reset type of the SN74HC161DR?
It features an asynchronous reset.
What is the package type of the SN74HC161DR?
The package type is SOIC-16.
What is the number of bits in the SN74HC161DR?
It is a 4-bit counter.
What is the count direction of the SN74HC161DR?
It counts in the up direction.
What is the trigger type of the SN74HC161DR?
It is triggered by a positive edge.
What is the operating temperature range of the SN74HC161DR?
The operating temperature range is 0°C to 70°C.
What are some typical applications of the SN74HC161DR?
Typical applications include digital counters, frequency dividers, and timing circuits in embedded systems and industrial automation.
