74HCT595D,118

The 74HCT595D,118 is an 8-bit shift register with an output latch, designed for use in digital circuits. It is part of the 74HCT series, which is a high-speed CMOS (Complementary Metal-Oxide-Semiconductor) logic family that is compatible with TTL (Transistor-Transistor Logic) levels. This device is manufactured by Nexperia, a well-known semiconductor company.

Key Features:

1. 8-Bit Shift Register: The 74HCT595D can store and shift 8 bits of data, making it suitable for applications that require serial-to-parallel data conversion.

2. Output Latch: The device includes an output latch that holds the data after it has been shifted in, allowing for stable output until new data is loaded.

3. Serial Input and Output: It features a serial data input (DS) for shifting in data and a serial data output (Q7’) for cascading multiple shift registers.

4. Parallel Output: The device provides 8 parallel outputs (Q0 to Q7), which can be used to drive LEDs, control other digital devices, or interface with microcontrollers.

5. Clock Input: The shift register is controlled by a clock input (SHCP), which determines when data is shifted into the register. The data is shifted on the rising edge of the clock signal.

6. Latch Enable: The latch enable input (STCP) allows the user to control when the data in the shift register is transferred to the output latch.

7. Active Low Reset: The reset input (MR) is active low, allowing the user to reset the shift register and clear all outputs to a low state.

8. Power Supply: The device operates over a wide voltage range, typically from 2V to 6V, making it versatile for various applications.

9. Temperature Range: The 74HCT595D is designed to operate within a standard temperature range, suitable for most commercial applications.

10. Package Type: The device is available in a DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package, making it easy to integrate into different circuit designs.

Applications:

• Data Storage: Used in applications where temporary data storage is required.
• LED Control: Commonly used in LED displays and lighting control systems.
• Microcontroller Interface: Acts as an interface between microcontrollers and other digital devices, allowing for expanded output capabilities.
• Shift Register Cascading: Multiple 74HCT595D devices can be cascaded to increase the number of outputs.

Electrical Characteristics:

• Input Voltage Levels: Compatible with TTL logic levels, ensuring seamless integration with other TTL devices.
• Propagation Delay: Fast switching times, typically in the nanosecond range, allowing for high-speed data processing.

Conclusion:

The 74HCT595D,118 from Nexperia is a versatile and efficient 8-bit shift register that is widely used in digital electronics for data manipulation and control. Its combination of features, including serial input/output, parallel output, and easy interfacing capabilities, makes it an essential component in many electronic designs.