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Name: SN74HC573APWT
Brand: Texas Instruments
SKU: SN74HC573APWT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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Texas Instruments SN74HC573APWT

Part No.:: SN74HC573APWT

Manufacturer:: Texas Instruments

Package:: 20-TSSOP (0.173, 4.40mm Width)

Datasheet:: SN74HC573APWT.pdf

Description:: IC OCT TRANS LATCH D 3ST 20TSSOP

In Stock:: 3713

Quantity:: Add To Cart

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SN74HC573APWT Specifications

Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
74HC
ProductStatus:
Active
LogicType:
D-Type Transparent Latch
Circuit:
8:8
OutputType:
Tri-State
Voltage-Supply:
2V ~ 6V
IndependentCircuits:
1
DelayTime-Propagation:
23ns
Current-OutputHighLow:
7.8mA, 7.8mA
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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SN74HC573APWT information

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SN74HC573APWT Typical application Circuitry

SN74HC573APWT

The SN74HC573APWT is an octal transparent D-type latch with 3-state outputs, encapsulated in a TSSOP package. This integrated circuit is adept at capturing and storing data, making it highly suitable for interface applications where temporary data storage and bidirectional bus control are required.

Inherent Capabilities

The SN74HC573APWT is designed to hold eight bits of data. The data is latched based on the state of the latch enable (LE) input and is available at the outputs when the output enable (OE) input is low, providing controlled data flow in complex digital systems.

Predominant Use Cases

The SN74HC573APWT is paramount in digital systems where data integrity and controlled access are crucial. It's extensively used in microprocessor interfaces, data buffers, and any system requiring a temporary hold and isolation of data lines, ensuring smooth and controlled data transactions.

Distinctive Specifications

- Voltage Range (Vcc): Typically between 2V and 6V.

- High-Level Input Voltage (VIH): Generally above 2V for a logical '1'.

- Low-Level Input Voltage (VIL): Typically below 0.8V for a logical '0'.

- Drive Current (IO): Capable of driving up to 6 mA.

- Switching Dynamics: Transition durations depend on Vcc and connected load properties.

Circuit Integration: Memory Buffering System

In this application, the SN74HC573APWT is employed to buffer data between a microprocessor and memory, ensuring data integrity during high-speed operations.

1. Stabilized Power Supply

- Vcc (Pin 20): This pin should be connected to a reliable +5V power source.

- Ground (Pin 10): Link this pin to the system ground for a common reference point.

2. Latch Enable Management

- Latch Enable (LE, Pin 11): Interface this pin with a control line that signifies when data is ready to be latched, with latching occurring at the high-to-low transition.

3. Output Enable Control

- Output Enable (OE, Pin 1): This pin should be connected to a control line that dictates when the data can be read from the outputs. The outputs are enabled when this pin is low.

4. Data Flow Configuration

- Data Inputs (D0-D7, Pins 2-7, 15-18): Connect these to the data lines from the microprocessor.

- Data Outputs (Q0-Q7, Pins 19, 20, 22-25, 27, 28): Route these pins to the memory input lines, providing buffered data.

5. Idle Pin Handling

- Ensure that any unused pins are connected to a known logic level to prevent floating states that can lead to unpredictability.

Circuitry Considerations

When designing circuits involving the SN74HC573APWT, careful attention to certain factors is paramount:

1. Consistent Power Delivery: A stable power source is essential to prevent unintended latching or output enabling.

2. Accurate Control Signaling: The timing of LE and OE is critical in ensuring the correct capture and release of data.

3. Noise Mitigation: Incorporating a decoupling capacitor near the Vcc pin is advisable to minimize noise, ensuring stable operation of the SN74HC573APWT.

4. Defined Input States: Clearly establish the state of each input, including unused ones, to avoid excessive power usage and ensure predictable operation.

To encapsulate, the SN74HC573APWT is a cornerstone in digital systems, particularly where the controlled handling of data is a necessity. Its role in a memory buffering system exemplifies its capability to maintain data integrity and provide smooth communication between a microprocessor and memory units. Attention to power stability, signal clarity, and input management is crucial in harnessing the full potential of the SN74HC573APWT, making it a robust and versatile component in the domain of digital circuit design. Whether for data storage, buffering, or controlled data transfer, the SN74HC573APWT stands as a pivotal element in modern digital infrastructure.

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(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of SN74HC573APWT.

(3)The PartNo is unused and only in the original unpacked packaging.

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