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Name: 74HC574DB,118
Brand: NXP USA Inc.
SKU: 74HC574DB,118
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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NXP USA Inc. 74HC574DB,118

Part No.:: 74HC574DB,118

Manufacturer:: NXP USA Inc.

Package:: 20-SSOP

Datasheet:: 74HC574DB,118.pdf

Description:: IC D-TYPE POS TRG SNGL 20SSOP

In Stock:: 3372

Quantity:: Add To Cart

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74HC574DB,118 Specifications

Packaging:
Bulk
Series:
74HC
ProductStatus:
Active
Function:
Standard
Type:
D-Type
OutputType:
Tri-State, Non-Inverted
NumberofElements:
1
NumberofBitsperElement:
8
ClockFrequency:
133 MHz
MaxPropagationDelay@VMaxCL:
26ns @ 6V, 50pF
TriggerType:
Positive Edge
Current-OutputHighLow:
7.8mA, 7.8mA
Voltage-Supply:
2V ~ 6V
Current-Quiescent(Iq):
8 µA
InputCapacitance:
3.5 pF
OperatingTemperature:
-40°C ~ 125°C (TA)
MountingType:
Surface Mount

74HC574DB,118 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including 74HC574DB,118 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for 74HC574DB,118 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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74HC574DB,118 information

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74HC574DB,118 Typical application Circuitry

74HC574DB,118

The 74HC574DB,118 is a high-speed CMOS octal D-type flip-flop with positive-edge-triggering and 3-state outputs, part of the 74HC logic family. This device captures the values at its data inputs (D0 to D7) on the rising edge of the clock input (CP) and retains this information, with the ability to present or isolate the data from the output bus through its 3-state output control.

Application Scenarios

The 74HC574DB,118 is instrumental in digital systems where data synchronization, storage, and efficient bus interfacing are paramount. It finds extensive use in memory storage units, digital communication interfaces, and microprocessor-based systems to facilitate orderly data management and transfer.

Microprocessor Interface Circuit

Designing a microprocessor interface circuit with the 74HC574DB,118 involves detailed planning regarding the chip's pin connections and functionalities. Here's a systematic guide:

Data Inputs Handling

Connecting the Data Inputs: The data inputs D0 to D7 (Pins 2, 5, 6, 9, 12, 15, 16, 19 of the 74HC574DB,118) should be linked to the microprocessor's data lines. This connection is crucial for transferring data from the microprocessor to the flip-flop.

Clock Signal Synchronization

Clock Integration: Pin 11 (CP), the clock input, must be connected to the microprocessor's clock output or another synchronized clock source. This ensures that data capturing is precisely timed with the system operations.

Managing Outputs for Bus Interface

Controlling Output States: The Q outputs (Pins 18, 13, 14, 11, 8, 7, 4, 1 of the 74HC574DB,118) are intended for connection to a system bus or subsequent processing units. The Output Enable (OE) pin, Pin 9, toggles the output between active and high-impedance states, facilitating bus interfacing without risk of contention.

Power Supply and Stability

Powering the Device: It's vital to connect Pin 20 (Vcc) to a +5V power source and Pin 10 (GND) to ground. Ensuring a stable and noise-free power supply is crucial for the reliable operation of the 74HC574DB,118.

Circuit Design Considerations

Incorporating the 74HC574DB,118 into a circuit, especially for a microprocessor interface, entails several critical considerations:

- Timing and Synchronization: The data must be stable before the rising edge of the clock pulse to ensure accurate capturing by the 74HC574DB,118. This requires careful planning of clock and data line routing to minimize delays and signal skew.

- Power Integrity: Fluctuations and noise in the power supply can adversely affect the performance. Decoupling capacitors should be placed near the 74HC574DB,118's power pins to mitigate such issues.

- Avoiding Bus Contention: Proper logic and timing must be implemented to ensure that the 74HC574DB,118 does not drive the bus when another device is transmitting. This is particularly important in systems with multiple bus masters.

- Signal Integrity: High-speed operation demands attention to PCB layout, including trace impedance control, minimizing cross-talk, and ensuring good grounding practices to maintain signal integrity.

Utilizing the 74HC574DB,118 for microprocessor interfacing exemplifies its capability to enhance data management and transfer in digital systems. Its 3-state outputs, combined with edge-triggered data capture, make it a valuable component in designing efficient, reliable digital circuits. A comprehensive understanding of the 74HC574DB,118's operational characteristics and careful design planning are essential for deploying effective digital solutions.

74HC574DB,118 FAQ

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6. What is the process for return or replacement of 74HC574DB,118?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the 74HC574DB,118 we delivered, we will accept the replacement or return of the 74HC574DB,118 only when all of the below conditions are fulfilled:

(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 74HC574DB,118.

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

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