Product Overview: 74HC590 8-bit Binary Counter with Output Register
The 74HC590 is a high-speed Si-gate CMOS device and is pin compatible with Low-power Schottky TTL (LSTTL). Designed and manufactured by Texas Instruments, this integrated circuit is an 8-bit binary counter with a storage register and 3-state outputs. The device is typically used in microprocessor systems or wherever binary counting is required, and it features a master reset to clear the counter, a clock input for counting, and an enable input for the output register.
Key Features:
- Counting and Storage: The 74HC590 includes an 8-bit binary counter with a storage register that allows for the parallel output of the count.
- 3-State Outputs: The outputs of the storage register are 3-state, which means they can be in one of three states: high, low, or high impedance. This is useful for connecting multiple outputs to a bus system without causing contention.
- Master Reset: A master reset function is available that immediately clears the counter to its zero state, allowing for quick and synchronous resets within a system.
- Edge-Triggered Counting: The counter advances on the rising edge of the clock signal, providing precise control over the counting sequence.
- Output Enable: An output enable input allows the user to place the I/O pins in high impedance state, which is especially useful during testing or when multiple devices are connected to the same output lines.
- Wide Operating Voltage: The device supports a wide operating voltage range, making it suitable for various applications.
- High Noise Immunity: The 74HC590 has a high noise immunity characteristic of CMOS devices, ensuring stable operation in noisy environments.
Applications:
The 74HC590 is versatile and can be used in various applications such as:
- Microprocessor systems
- Timers and counters
- Frequency dividers
- Time-delay circuits
- Interface applications
Overall, the 74HC590 from Texas Instruments is a reliable and functional component that offers precision counting capabilities and is an excellent choice for designers looking to incorporate an 8-bit counter with additional features like a storage register and 3-state outputs into their digital systems.
