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Name: SN74LS244NSR
Brand: Texas Instruments
SKU: SN74LS244NSR
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 SN74LS244NSR

Part No.:: SN74LS244NSR

Manufacturer:: Texas Instruments

Package:: 20-SOIC (0.209, 5.30mm Width)

Datasheet:: SN74LS244NSR.pdf

Description:: IC BUFFER NON-INVERT 5.25V 20SO

In Stock:: 6283

Quantity:: Add To Cart

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SN74LS244NSR Specifications

Package/Case:
20-SOIC (0.209, 5.30mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
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:
Surface Mount

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SN74LS244NSR information

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SN74LS244NSR Typical application Circuitry

SN74LS244NSR

The integrated circuit known as an octal buffer/line driver with 3-state outputs is the SN74LS244NSR. This chip is part of the 74LS (Low-power Schottky) logic family, which is known for its low power consumption and relatively high speed.

Applications of SN74LS244NSR:

The SN74LS244NSR is typically used in situations where signal buffering is necessary. This can include:

1. Data Bus Management: It can drive a data bus, allowing multiple devices to connect without risking data corruption.

2. Signal Isolation: Helps in isolating the input from the output, protecting sensitive components.

3. Driving Heavy Loads: Capable of driving loads that require higher current than what the preceding circuit can provide.

Principal attributes - Two-in-one package: is packaged in a typical integrated circuit.

- Three-State Results: permits three possible states for the outputs: high, low, or high-impedance.

- Low Power Consumption: As part of the LS series, it consumes less power compared to regular TTL devices.

Circuit Connection Example: Data Bus Interface:

Let's consider a specific application scenario where the SN74LS244NSR is used to interface a microcontroller with a data bus.

1. Connections:

- Vcc (Pin 20): Connect to +5V power supply.

- GND (Pin 10): Connect to ground.

- Input Pins (1A-4A, 2A-4A on Pins 2, 4, 6, 8, 18, 16, 14, 12 respectively): Connect these to the microcontroller's output pins.

- Output Pins (1Y-4Y, 2Y-4Y on Pins 3, 5, 7, 9, 19, 17, 15, 13 respectively): Connect these to the data bus lines.

2. Enable Pins (1G on Pin 1 and 2G on Pin 19): These are active low. Connect them to the control lines from the microcontroller to enable/disable the buffer.

3. Usage in Circuit:

- When the microcontroller needs to send data to the bus, it will make the enable pins low, turning on the buffer.

- The data from the microcontroller will pass through the SN74LS244NSR to the data bus.

4. Considerations:

- Impedance Matching: Ensure the output impedance of the buffer matches the data bus.

- Timing: Synchronize the enable signals with the data signals to prevent data corruption.

Design-Related Issues:

The following factors should be taken into account when designing a circuit with the SN74LS244NSR:

- Power Supply Stability: Ascertain a steady 5V supply.

- Heat Dissipation: Although it's a low-power device, proper heat dissipation is important in high-frequency applications.

- Signal Integrity: Minimize noise and crosstalk, especially in high-speed applications.

Using the SN74LS244NSR in your design involves understanding its capabilities, especially its 3-state outputs and the logic levels it operates at. This understanding is critical for ensuring reliable operation in your application, whether it's for data bus management, signal isolation, or driving heavy loads.

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6. What is the process for return or replacement of SN74LS244NSR?

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 SN74LS244NSR we delivered, we will accept the replacement or return of the SN74LS244NSR 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 SN74LS244NSR.

(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