SN74LV573APW

The SN74LV573APW is a high-speed, low-voltage octal latch from Texas Instruments, designed for use in digital circuits. It is part of the 74LV family, which is known for its low-voltage operation and high-speed performance. Here’s a detailed description of its features and specifications:

General Description:

• Type: Octal D-type transparent latch
• Functionality: The SN74LV573APW captures data on the rising edge of the clock signal and holds it until the next clock edge, making it suitable for temporary data storage in digital systems.

Key Features:

• Voltage Range: Operates with a supply voltage (Vcc) ranging from 2.0V to 5.5V, making it compatible with various low-voltage applications.
• Input/Output Compatibility: The device is designed to interface with both TTL and CMOS logic levels, providing flexibility in mixed-logic environments.
• Propagation Delay: Offers fast propagation delays, typically around 5 ns at 3.3V, which is beneficial for high-speed applications.
• Latch Enable: The latch can be enabled or disabled via the latch enable (LE) pin, allowing for control over when data is captured.
• Active-Low Output: The outputs are active-low, meaning they will output a low signal when the corresponding input is high, which is useful in certain logic designs.

Pin Configuration:

• The SN74LV573APW is available in a 20-pin TSSOP (Thin Shrink Small Outline Package) form factor, which is compact and suitable for space-constrained applications.
• The pins include data inputs (D0-D7), clock input (CLK), latch enable (LE), and output pins (Q0-Q7), along with ground (GND) and power supply (Vcc) pins.

Electrical Characteristics:

• Input High Voltage (VIH): Minimum of 2.0V for reliable high-level recognition.
• Input Low Voltage (VIL): Maximum of 0.8V for reliable low-level recognition.
• Output High Voltage (VOH): Typically close to Vcc, ensuring strong high-level output.
• Output Low Voltage (VOL): Typically around 0.2V, ensuring low-level output is well-defined.

Applications:

• The SN74LV573APW is commonly used in applications such as:
  • Data buffering and storage
  • Temporary data holding in digital circuits
  • State machines and control logic
  • Interface circuits in communication systems

Thermal and Mechanical Characteristics:

• Operating Temperature Range: Typically from -40°C to +125°C, making it suitable for a wide range of environmental conditions.
• Package Type: TSSOP-20, which provides a low-profile solution for modern electronic designs.

Conclusion:

The SN74LV573APW is a versatile and efficient octal latch that provides reliable performance in low-voltage digital applications. Its combination of speed, low power consumption, and compatibility with various logic families makes it an excellent choice for engineers designing complex digital systems.