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Name: SN74ACT244DWR
Brand: Texas Instruments
SKU: SN74ACT244DWR
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 SN74ACT244DWR

Part No.:: SN74ACT244DWR

Manufacturer:: Texas Instruments

Package:: 20-SOIC (0.295, 7.50mm Width)

Datasheet:: SN74ACT244DWR.pdf

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

In Stock:: 3787

Quantity:: Add To Cart

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SN74ACT244DWR Specifications

Package/Case:
20-SOIC (0.295, 7.50mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
74ACT
ProductStatus:
Active
LogicType:
Buffer, Non-Inverting
NumberofElements:
2
NumberofBitsperElement:
4
InputType:
-
OutputType:
3-State
Current-OutputHighLow:
24mA, 24mA
Voltage-Supply:
4.5V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C (TA)
MountingType:
Surface Mount

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SN74ACT244DWR information

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SN74ACT244DWR Typical application Circuitry

SN74ACT244DWR

The SN74ACT244DWR is an integrated circuit (IC) known for its functionality as an octal buffer/line driver. This chip is designed to provide buffering for memory address lines, data buses, or other bus-oriented systems. The key features of the SN74ACT244DWR include:

1. Dual-In-Line Package: This chip comes in a standard 20-pin package, which is widely used in the industry.

2. High-Speed Operation: It operates at a higher speed compared to many other buffer ICs.

3. Low Power Consumption: The chip is perfect for battery-operated devices because it has been tuned for low power consumption.

4. Compatibility: It is compatible with TTL (Transistor-Transistor Logic) levels, which means it can be easily integrated into existing digital systems.

Application Scenario: Data Bus Buffering

In a typical application where the SN74ACT244DWR is used for data bus buffering, the chip acts as an intermediary between a microcontroller and a data bus to ensure signal integrity. Here's a detailed connection method for this scenario:

- Power Supply Connections:

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

- GND (Pin 10): Connect to ground.

- Input Side:

- OE1 and OE2 (Pins 1 and 19): These are the Output Enable pins. Connect them to the control signal (usually from a microcontroller) that dictates when the buffer should be active.

- A1 to A8 (Pins 2 to 9): Connect these pins to the microcontroller's output ports or any other source that you want to buffer.

- Output Side:

- B1 to B8 (Pins 18 to 11): Connect these pins to the data bus of the target device (like RAM, another microcontroller, etc.).

- Programming Connections (If Applicable):

- If programming of the microcontroller is required through the same lines, ensure that the OE pins are appropriately controlled to avoid contention on the bus lines.

Design-Related Issues:

A circuit designer should take into account a number of factors when working with the SN74ACT244DWR:

- Power Decoupling: Include a 0.1 µF capacitor close to the VCC pin to filter out noise.

- Output Load: Ensure that the output load does not exceed the specified limits of the chip to prevent damage.

- Signal Integrity: Use proper PCB layout techniques to minimize cross-talk and signal degradation, especially in high-speed applications.

In summary, the SN74ACT244DWR serves as an effective solution for buffering and driving lines in digital systems, offering compatibility with TTL levels and efficient operation. Proper application and adherence to design considerations are crucial for optimal performance.

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6. What is the process for return or replacement of SN74ACT244DWR?

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 SN74ACT244DWR we delivered, we will accept the replacement or return of the SN74ACT244DWR 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 SN74ACT244DWR.

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

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations