SN74HC573ANG4

The SN74HC573ANG4 is a high-speed CMOS octal transparent latch designed by Texas Instruments. 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 SN74HC573 is an octal latch that can store 8 bits of data. It operates in a transparent mode, meaning that when the latch enable (LE) input is high, the output reflects the input data. When LE is low, the output holds the last data value.
• 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.

Key Features:

• High-Speed Operation: The device can operate at high speeds, with a maximum propagation delay of around 15 ns at a supply voltage of 5V.
• Wide Supply Voltage Range: It operates with a supply voltage range of 2V to 6V, making it versatile for various applications.
• Low Power Consumption: The SN74HC573 is designed to consume low power, which is beneficial for battery-operated devices.
• TTL Compatibility: The outputs are compatible with TTL logic levels, allowing for easy integration with other TTL devices.
• Active-Low Enable: The latch enable (LE) input is active low, meaning that the latch will capture the input data when LE is low.

Pin Configuration:

• The SN74HC573 is available in a 20-pin dual in-line package (DIP) or surface mount configurations. The pins are arranged in two rows, with each pin designated for specific functions such as data inputs, outputs, and control signals.

Applications:

• Data Storage: It is commonly used in applications requiring temporary data storage, such as in registers and buffers.
• Data Transfer: The device can be used in data transfer applications where data needs to be latched before being sent to another part of a circuit.
• Control Systems: It is suitable for use in control systems where multiple signals need to be managed and stored.

Electrical Characteristics:

• Input Voltage Levels: The input high voltage (VIH) is typically around 2V (for a 5V supply), and the input low voltage (VIL) is around 0.8V.
• Output Voltage Levels: The output high voltage (VOH) is typically close to the supply voltage, while the output low voltage (VOL) is close to ground.
• Current Ratings: The device can source or sink a maximum of 25 mA per output pin.

Packaging:

• The SN74HC573ANG4 is specifically noted for its "G4" suffix, indicating that it is RoHS-compliant and lead-free, making it suitable for environmentally friendly applications.

In summary, the SN74HC573ANG4 from Texas Instruments is a versatile and efficient octal latch that is ideal for a variety of digital applications, providing high-speed data handling with low power consumption. Its compatibility with TTL logic and wide supply voltage range make it a popular choice among engineers and designers.