74HC573D,653

The 74HC573D,653 is a high-speed CMOS octal transparent latch with 3-state outputs, manufactured by Nexperia. This device is part of the 74HC family, which is known for its high-speed performance and low power consumption, making it suitable for a variety of digital applications.

Key Features:

1. Functionality: The 74HC573 is designed to store data in an 8-bit format. It features eight D-type latches that are transparent when the latch enable (LE) input is high. When LE is low, the latches hold the last data present at the inputs.

2. 3-State Outputs: The outputs of the device can be placed in a high-impedance state, allowing multiple devices to share the same output line without interference. This is controlled by the output enable (OE) pin.

3. Input and Output Configuration: The device has eight data inputs (D0 to D7) and eight corresponding outputs (Q0 to Q7). The outputs can be driven high or low based on the input data and control signals.

4. Control Pins:

   • Latch Enable (LE): When this pin is high, the data present at the inputs is passed to the outputs. When low, the outputs retain the last data.
   • Output Enable (OE): This pin controls the output state. When OE is low, the outputs are enabled; when high, the outputs are in a high-impedance state.

5. Supply Voltage: The device operates within a supply voltage range of 2V to 6V, making it compatible with various logic levels.

6. Speed: The 74HC573 is capable of operating at high speeds, with propagation delays typically around 15 ns at 5V, making it suitable for fast digital circuits.

7. Package Type: The device is available in various package types, including DIP (Dual In-line Package) and TSSOP (Thin Shrink Small Outline Package), which allows for flexibility in PCB design and layout.

8. Temperature Range: The operational temperature range is typically from -40°C to +125°C, making it suitable for industrial applications.

9. Applications: Common applications include data storage, temporary data holding in digital circuits, interfacing with microcontrollers, and as part of larger digital systems where data needs to be latched and controlled.

Electrical Characteristics:

• Input High Voltage (VIH): Minimum of 2V for a 5V supply.
• Input Low Voltage (VIL): Maximum of 0.8V for a 5V supply.
• Output High Voltage (VOH): Typically close to the supply voltage when the output is high.
• Output Low Voltage (VOL): Typically close to ground when the output is low.

Conclusion:

The 74HC573D,653 from Nexperia is a versatile and efficient component for digital circuit design, providing reliable data latching capabilities with high-speed performance and low power consumption. Its 3-state outputs and flexible control features make it an essential part of many electronic systems.