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Name: SN74LVC244APWT
Brand: Texas Instruments
SKU: SN74LVC244APWT
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 SN74LVC244APWT

Part No.:: SN74LVC244APWT

Manufacturer:: Texas Instruments

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

Datasheet:: SN74LVC244APWT.pdf

Description:: IC BUF NON-INVERT 3.6V 20TSSOP

In Stock:: 2377

Quantity:: Add To Cart

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SN74LVC244APWT Specifications

Package/Case:
20-TSSOP (0.173, 4.40mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
74LVC
ProductStatus:
Active
LogicType:
Buffer, Non-Inverting
NumberofElements:
2
NumberofBitsperElement:
4
InputType:
-
OutputType:
3-State
Current-OutputHighLow:
24mA, 24mA
Voltage-Supply:
1.65V ~ 3.6V
OperatingTemperature:
-40°C ~ 125°C (TA)
MountingType:
Surface Mount

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SN74LVC244APWT information

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SN74LVC244APWT Typical application Circuitry

SN74LVC244APWT

The SN74LVC244APWT is an octal buffer/line driver with 3-state outputs, belonging to the 74LVC family, known for its low-voltage operation and high drive strength. It's frequently utilized in scenarios that necessitate robust signal driving capability, such as in bus interfacing or data communication systems. Its features and applications are diverse, yet let's delve into its specifics, an application scenario, and considerations in circuit design.

Functionality Overview:

The core function of the SN74LVC244APWT is to serve as an octal buffer and line driver, offering 3-state outputs. This characteristic makes it adept at controlling data flow in bus-oriented systems by enabling or isolating the driver from the bus.

Application Context:

A typical application of the SN74LVC244APWT is in interfacing microprocessors or microcontrollers with memory or peripheral devices, especially where signal strength needs reinforcement or protection from noisy environments.

Key Specifications:

The SN74LVC244APWT operates with a voltage range typically around 2.7V to 3.6V, aligning with contemporary low-voltage logic levels. It also features high drive strength, making it suitable for driving capacitive loads or long transmission lines.

Circuit Connection for Memory Interface:

1. Voltage Connection:

- Begin by connecting the Vcc (pin 20) to a 3.3V power supply and GND (pin 10) to the system ground, ensuring that the SN74LVC244APWT receives the correct operating voltage.

2. Microprocessor/Microcontroller Interface:

- Link the microprocessor's data output pins to the inputs of the SN74LVC244APWT (pins 2, 4, 6, 8, 12, 14, 16, 18), facilitating data transmission from the processor to the buffer.

3. Memory Connection:

- Connect the outputs of the SN74LVC244APWT (pins 3, 5, 7, 9, 11, 13, 15, 17) to the memory device's input pins, enabling data flow from the buffer to the memory.

4. Output Enable Management:

- Control the output state by properly managing the OE pins (1 and 19). For active data transmission, these pins should be tied to ground, activating the outputs. Conversely, for isolating the buffer from the bus, set these pins high.

5. Impedance Matching (if applicable):

- If interfacing with long transmission lines or a bus system, ensure that the impedance of the SN74LVC244APWT's outputs matches the line or bus impedance to prevent signal reflection or loss.

Circuit Design Considerations:

Incorporating the SN74LVC244APWT into a circuit mandates attention to specific aspects:

1. Voltage Compatibility: Confirm that the power supply aligns with the SN74LVC244APWT's voltage requirements and that all connected devices are compatible.

2. Load Capacitance: Given the device's high drive strength, ensure that the load does not exceed the recommended capacitive load to maintain signal integrity.

3. Heat Dissipation: Assess the power dissipation under normal operation and provide adequate cooling if the device is driving heavy loads or operating at high frequencies.

4. Line Termination (for long lines): When driving long lines, consider appropriate line termination techniques to prevent signal degradation.

In essence, the SN74LVC244APWT is a versatile component, well-suited for scenarios requiring robust signal driving and protection. A thorough understanding of its functionality, application contexts, and design prerequisites is essential for effective and reliable circuit design.

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6. What is the process for return or replacement of SN74LVC244APWT?

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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 SN74LVC244APWT.

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

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