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Name: SN74LS244N
Brand: Texas Instruments
SKU: SN74LS244N
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 SN74LS244N

Part No.:: SN74LS244N

Manufacturer:: Texas Instruments

Package:: 20-DIP (0.300, 7.62mm)

Datasheet:: SN74LS244N.pdf

Description:: IC BUF NON-INVERT 5.25V 20DIP

In Stock:: 27703

Quantity:: Add To Cart

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SN74LS244N Specifications

Package/Case:
20-DIP (0.300, 7.62mm)
Packaging:
Bulk,Tube
Series:
74LS
ProductStatus:
Active
LogicType:
Buffer, Non-Inverting
NumberofElements:
2
NumberofBitsperElement:
4
InputType:
-
OutputType:
3-State
Current-OutputHighLow:
15mA, 24mA
Voltage-Supply:
4.75V ~ 5.25V
OperatingTemperature:
0°C ~ 70°C (TA)
MountingType:
Through Hole

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SN74LS244N information

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SN74LS244N Typical application Circuitry

SN74LS244N

An integrated circuit called the SN74LS244N is well-known for its ability to act as an octal buffer/line driver with 3-state outputs. It's part of the 74LS (Low-Power Schottky) series, which are popular in digital logic circuits. This chip is particularly useful in applications where buffer or line driving capabilities are needed to drive long or heavily loaded lines with high fan-out requirements.

Key Features of the SN74LS244N:

- Eight Buffers/Line Drivers: Each can be individually controlled.

- 3-State Outputs: This feature allows for connection to a bus without interfering with other components.

- Broad Operating Voltage Range: It is compatible with conventional TTL logic levels, typically operating between 4.75V and 5.25V.

- Low Power Consumption: A characteristic of the LS series, which is suitable for battery-operated devices.

Application Scenario and Circuit Connection Details:

Consider an application where the SN74LS244N is used to interface a microcontroller with a high-capacity memory device. The microcontroller's output pins might not be capable of handling the load presented by the memory device, so the SN74LS244N acts as a buffer, strengthening the signals.

1. Power Supply Connections: Attach pin 10 (GND) to ground and pin 20 (Vcc) to a +5V power source.

2. Input Connections from the Microcontroller: Suppose you're using pins 2A to 7A (pins 2, 4, 6, 10, 12, 14, 16) of the SN74LS244N. Connect these pins to the corresponding output pins of the microcontroller.

3. Output Connections to Memory Device: Connect pins 2Y to 7Y (pins 3, 5, 7, 9, 11, 13, 15) of the SN74LS244N to the input pins of the memory device.

4. Enabling the Buffers: Pins 1G and 2G (pins 1 and 19) are the enable pins for the buffers. To activate the buffers, these should be connected to a low logic level (ground). If they need to be controlled dynamically, they can be connected to control outputs of the microcontroller.

Design Considerations:

- Signal Integrity: Ensure minimal signal degradation, especially in long or complex circuit paths.

- Power Supply Stability: For optimal operation, a power supply must be steady and noise-free.

- Heat Dissipation: Although the LS series is known for low power consumption, proper heat management is still important in a densely packed circuit.

- Logic Level Compatibility: Ensure that the logic levels of the microcontroller and memory device are compatible with the SN74LS244N.

In summary, the SN74LS244N serves as a robust solution in applications where signal buffering and driving are required, especially in digital systems interfacing with multiple components or long signal paths. Its features like 3-state outputs and low power consumption make it a versatile component in various digital logic applications.

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6. What is the process for return or replacement of SN74LS244N?

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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 SN74LS244N.

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

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(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations