The MC74ACT161N is a high-performance, integrated circuit produced by ON Semiconductor, designed as a 4-bit binary counter. This device is part of the ACT (Advanced CMOS Technology) family, offering the high-speed operation of traditional CMOS devices while providing the reduced power consumption that modern applications demand.
Key Features
- Synchronous Counting: The MC74ACT161N provides synchronous counting, which ensures precise timing and control over the counting sequence. This feature is essential for applications where accuracy and predictability are critical.
- Asynchronous Clear: The counter can be cleared instantaneously by an asynchronous input, allowing for quick resetting of the count without the need for the clock to cycle through its sequence.
- Look-Ahead Carry Output: This functionality allows for high-speed counting and cascading of multiple counters without significant propagation delays, making it ideal for complex counting systems.
- Edge-Triggered: The device responds to the rising edge of the clock signal, providing a clear and predictable transition, which is vital for maintaining count integrity.
- Output Drive Capability: The outputs can drive up to 15 LSTTL loads, ensuring compatibility with a wide range of digital components and systems.
- Standard Pin Configuration: The MC74ACT161N is offered in a 16-pin DIP package, aligning with industry standards and ensuring ease of integration into existing designs.
Applications
The MC74ACT161N is versatile and can be used in a variety of applications, including:
- Industrial control systems
- Frequency division
- Event counting
- Digital timers and clocks
- Sequential control systems
Technical Specifications
Parameter
Value
Supply Voltage (V<sub>CC)
4.5V to 5.5V
Operating Temperature
-40°C to +85°C
Propagation Delay
Typically 9ns at 5V
The MC74ACT161N by ON Semiconductor is a reliable choice for designers who require a 4-bit binary counter that combines speed with power efficiency. Its robust feature set and industry-standard packaging make it a versatile component for a wide range of digital applications.