The S74LV164A is an 8-bit serial-in, parallel-out shift register manufactured by Fairchild Semiconductor (now ON Semiconductor). This device is part of the LV (Low Voltage) family, designed for low-voltage, high-speed operation. It's commonly used in applications requiring serial-to-parallel data conversion, display driving, and sequence generation.
Applications
- Serial-to-Parallel Conversion: Converts serial data streams into parallel data for driving displays or other parallel-input devices.
- Display Driving: Used to drive LED displays, LCDs, or other display technologies with serial data.
- Sequence Generation: Creates specific data sequences for control or testing purposes.
- Data Acquisition Systems: Accumulates serial data from sensors or other sources for parallel processing.
- Communication Systems: Used in serial communication interfaces for data formatting.
Features
- 8-Bit Serial-In, Parallel-Out: Accepts serial data input and provides parallel outputs for all 8 bits.
- Asynchronous Master Reset: A master reset input allows clearing the register to a known state regardless of the clock.
- Low Voltage Operation: Operates over a voltage range of 2.0V to 5.5V, suitable for low-power applications.
- High-Speed Operation: LV technology provides fast clock rates and short propagation delays.
- TTL-Compatible Inputs: Compatible with TTL logic levels for easy interfacing with other digital circuits.
- Cascadable: Multiple devices can be cascaded to create longer shift registers.
Benefits
- Efficient Data Conversion: Converts serial data to parallel format efficiently and reliably.
- Simplified Display Driving: Simplifies the driving of displays with serial data input requirements.
- Low Power Consumption: Low voltage operation minimizes power consumption and heat generation.
- Versatile Applications: Suitable for a wide range of applications due to its serial-to-parallel conversion capabilities.
- Easy Integration: TTL-compatible inputs facilitate easy integration with other digital circuits.
Additional Details
The S74LV164A is commonly available in SOIC (Small Outline Integrated Circuit) and DIP (Dual In-line Package). It is also available in TSSOP (Thin Shrink Small Outline Package) for space-constrained applications. The operating temperature range typically spans from -40°C to +85°C. The maximum clock frequency can reach up to 100 MHz at 5V. The asynchronous reset pin allows for easy initialization of the register. When cascading devices, the output of one register is connected to the serial input of the next.