The NXP 74F269 is a high-performance, 8-bit binary counter integrated circuit, part of the 74F series known for its fast switching speeds and high functionality. This particular model is designed for use in counting applications where high-speed operation is critical. It features an 8-bit binary counter with a divide-by-256 output and carry lookahead for easy cascading.
Key Features
- High-Speed Performance: The 74F269 is built for speed, with typical shift/frequency operations that accommodate demanding applications.
- Integrated Counter: The device includes an 8-bit counter with a storage register, providing a high degree of functionality in a compact package.
- Easy Cascading: With carry lookahead, multiple 74F269 devices can be cascaded for extended counting ranges without significant delays.
- Master Reset: A master reset function allows for the immediate clearing of the counter, facilitating quick resets and initialization.
- Multiple Counting Modes: It supports both synchronous and asynchronous operations, offering versatility in application.
- Output Capability: The counter features a divide-by-256 output, which can be utilized for frequency division or as a real-time counter.
Applications
The NXP 74F269 finds its place in a variety of applications that require high-speed counting, such as:
- Industrial control systems
- High-speed timers and counters
- Frequency dividers
- Real-time clocks
- Processors and computing systems
Technical Specifications
The device operates within a specified voltage range and has the following technical attributes:
- Supply Voltage (V<sub>CC): 4.5V to 5.5V
- Input and Output Voltage (V<sub>I, V<sub>O): 0V to V<sub>CC
- Operating Temperature Range: 0°C to 70°C
- Package Options: Available in standard packaging options including DIP and SOIC
The NXP 74F269 is a reliable and efficient solution for designers looking to implement high-speed counting functionality in their digital systems. Its robust feature set and ease of use make it a versatile choice for a wide range of applications.
