74HC573D,653

The 74HC573D,653 is a high-speed CMOS octal transparent latch designed by Nexperia. It is part of the 74HC family of logic devices, which are known for their high-speed performance and low power consumption. Here’s a detailed description of its features and specifications:

General Description:

• Functionality: The 74HC573 is an octal latch that can store 8 bits of data. It has a transparent mode, meaning that when the enable (E) input is high, the output follows the input. When the enable input is low, the output holds the last state of the input.
• Data Inputs and Outputs: The device has 8 data inputs (D0 to D7) and 8 corresponding outputs (Q0 to Q7). Each output can drive a load, making it suitable for interfacing with other digital circuits.

Pin Configuration:

• The device typically comes in a 20-pin dual in-line package (DIP) or surface mount package (SOIC), with the following key pins:
  • D0-D7: Data inputs for the 8 bits.
  • Q0-Q7: Outputs corresponding to the data inputs.
  • E: Enable input that controls the latch operation.
  • GND: Ground connection.
  • VCC: Power supply connection.

Electrical Characteristics:

• Supply Voltage (VCC): The device operates typically at a supply voltage of 2V to 6V, making it compatible with a wide range of digital systems.
• Input Voltage Levels: The input high voltage (VIH) and input low voltage (VIL) levels are defined to ensure proper operation, typically around 0.7VCC for high and 0.3VCC for low.
• Output Drive Capability: The outputs can drive standard TTL loads, making it suitable for interfacing with other logic families.

Performance:

• Propagation Delay: The device features fast propagation delays, typically in the range of nanoseconds, allowing for high-speed data processing.
• Power Consumption: The 74HC573 is designed for low power consumption, making it ideal for battery-operated devices and energy-efficient applications.

Applications:

• The 74HC573D,653 is widely used in various applications, including:
  • Data storage and transfer in digital circuits.
  • Temporary data holding in microcontroller and microprocessor systems.
  • Interface between different logic families.
  • As part of larger digital systems requiring data latching capabilities.

Package Information:

• The device is available in various package types, including:
  • DIP-20: Dual in-line package suitable for through-hole mounting.
  • SOIC-20: Small outline integrated circuit for surface mounting.

Conclusion:

The 74HC573D,653 from Nexperia is a versatile and efficient octal latch that provides reliable data storage and transfer capabilities in digital circuits. Its high-speed performance, low power consumption, and compatibility with various logic levels make it a popular choice for engineers and designers in the field of electronics.