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Name: SN74LV244APWR
Brand: Texas Instruments
SKU: SN74LV244APWR
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 SN74LV244APWR

Part No.:: SN74LV244APWR

Manufacturer:: Texas Instruments

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

Datasheet:: SN74LV244APWR.pdf

Description:: IC BUF NON-INVERT 5.5V 20TSSOP

In Stock:: 3735

Quantity:: Add To Cart

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SN74LV244APWR Specifications

Package/Case:
20-TSSOP (0.173, 4.40mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
74LV
ProductStatus:
Active
LogicType:
Buffer, Non-Inverting
NumberofElements:
2
NumberofBitsperElement:
4
InputType:
-
OutputType:
3-State
Current-OutputHighLow:
16mA, 16mA
Voltage-Supply:
2V ~ 5.5V
OperatingTemperature:
-40°C ~ 125°C (TA)
MountingType:
Surface Mount

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SN74LV244APWR information

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SN74LV244APWR Typical application Circuitry

SN74LV244APWR

The SN74LV244APWR is an octal buffer and line driver with 3-state outputs, designed primarily for driving bus lines or buffer memory address registers. It can drive heavy loads while maintaining high-speed data transmission. This device is known for its wide operating voltage range and high drive strength.

Application Scenario: Buffering Signals in a Microcontroller-Based System

In this scenario, SN74LV244APWR is used to buffer signals from a microcontroller to various peripherals, ensuring signal integrity and preventing the microcontroller from sourcing or sinking excessive current.

Circuit Connection Strategy

1. Microcontroller Output Connection

- Connect the microcontroller's output signals to the input pins (A1 to A8; Pins 2, 4, 6, 8, 10, 12, 14, 16) of SN74LV244APWR.

- Confirm that the signals are within the operating range of SN74LV244APWR for proper operation.

2. Peripheral Device Interface

- Connect the peripheral device inputs to the output pins (B1 to B8; Pins 18, 16, 14, 12, 10, 8, 6, 4) of SN74LV244APWR.

- The 3-state output capability allows for controlled signal transmission to the peripheral devices.

3. Output Enable Control

- Connect the output enable pins (1OE and 2OE; Pins 1 and 19) of SN74LV244APWR to control pins of the microcontroller.

- Precise control of these pins switches the buffer outputs between active and high-impedance states, providing flexibility in system design.

4. Power Supply Configuration

- Connect VCC (Pin 20) to a suitable power supply (usually 3.3V or 5V, depending on the system design) and GND (Pin 10) to the system ground.

- Implementing decoupling capacitors close to the power pins is essential for a stable power supply and to minimize noise for SN74LV244APWR.

5. Grounding and Decoupling

- Establish a solid ground plane and place decoupling capacitors at the power pins to minimize noise and stabilize the operation.

- Proper grounding and decoupling are essential for the stable operation of SN74LV244APWR.

Design Parameters

When integrating SN74LV244APWR into a circuit, several important factors need attention:

1. Voltage Level Compatibility

- Ensure that the microcontroller's output levels are compatible with the input levels of SN74LV244APWR to ensure proper functioning.

2. Output Drive Capability

- Ensure that the output of SN74LV244APWR can adequately drive the connected peripheral devices, considering both the voltage level and current capability.

3. Signal Integrity

- Use proper routing and, if necessary, shielding to protect the signals from noise, particularly in environments with high electrical interference.

4. Power Supply Stability

- Ensure that the power supply to SN74LV244APWR is stable and clean, as fluctuations can impact the performance and signal integrity.

5. Thermal Management

- Evaluate the thermal load, especially if SN74LV244APWR is expected to drive heavy loads, and consider implementing cooling solutions if needed.

By addressing these considerations and understanding the operational capabilities of SN74LV244APWR, engineers can effectively use this octal buffer and line driver in microcontroller-based systems, ensuring robust signal buffering and integrity for interfacing with various peripheral devices.

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6. What is the process for return or replacement of SN74LV244APWR?

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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 SN74LV244APWR.

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

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(1)Inform us within 90 days

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