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Name: SN74HC244DWR
Brand: Texas Instruments
SKU: SN74HC244DWR
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 SN74HC244DWR

Part No.:: SN74HC244DWR

Manufacturer:: Texas Instruments

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

Datasheet:: SN74HC244DWR.pdf

Description:: IC BUFFER NON-INVERT 6V 20SOIC

In Stock:: 250121

Quantity:: Add To Cart

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SN74HC244DWR Specifications

Package/Case:
20-SOIC (0.295, 7.50mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
74HC
ProductStatus:
Active
LogicType:
Buffer, Non-Inverting
NumberofElements:
2
NumberofBitsperElement:
4
InputType:
-
OutputType:
3-State
Current-OutputHighLow:
7.8mA, 7.8mA
Voltage-Supply:
2V ~ 6V
OperatingTemperature:
-40°C ~ 85°C (TA)
MountingType:
Surface Mount

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SN74HC244DWR information

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SN74HC244DWR Typical application Circuitry

SN74HC244DWR

The SN74HC244DWR is a type of integrated circuit known as an octal buffer/line driver with 3-state outputs. This chip is widely used in digital systems for buffering and driving signals. Below is a summary of its features, uses, important specifications, and an in-depth illustration of how it is applied in a particular application:

Functionality:

SN74HC244DWR serves primarily as a buffer and line driver. It's designed to enhance the drive capabilities of bus-oriented systems. With its 3-state outputs, it can drive bus lines or buffer memory address registers.

Application Scenarios:

1. Data Bus Isolation: When data needs to be shared or transferred between different subsystems within digital equipment, the SN74HC244DWR is used to isolate the bus to prevent data conflicts.

2. Memory Address Driving: It's often used to drive memory address lines, enhancing the signal quality and preventing degradation over long traces.

3. Input/Output (I/O) Port Expansion: For microcontroller-based systems requiring more I/O ports, this chip can be used to expand the capacity.

Parameter Features:

- High-Current Outputs: Can drive up to 15 LSTTL loads.

- Wide Operating Voltage Range: Operates from 2V to 6V.

- Low Power Consumption: Suitable for battery-operated devices.

Specific Application: Data Bus Isolation in a Microcontroller System

Circuit Connection Details:

- Input to Microcontroller: Pins 1A to 4A (Pins 2, 4, 6, 8 of the SN74HC244DWR) are connected to the microcontroller's data output lines.

- Output to Data Bus: Corresponding outputs 1Y to 4Y (Pins 3, 5, 7, 9) are connected to the data bus.

- Output Control: The output enable (OE) pins (1OE and 2OE, Pins 1 and 19) are connected to control lines from the microcontroller, allowing selective enabling of the buffer outputs.

- Ground and Power source: Pin 10 is connected to the ground, while Pin 20 is connected to the power source.

Considerations in Circuit Design:

1. Signal Integrity: Ensure minimal signal distortion by keeping traces short and well-routed.

2. Power Supply Stability: A stable VCC is crucial for consistent performance.

3. Heat Dissipation: Take into account the SN74HC244DWR's heat dissipation when transporting heavy weights.

4. Logical Levels Compatibility: Ensure that the microcontroller's output levels are compatible with the input levels of the SN74HC244DWR.

By focusing on these aspects, the SN74HC244DWR can be effectively integrated into a wide range of digital systems, enhancing signal integrity and driving capabilities.

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6. What is the process for return or replacement of SN74HC244DWR?

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 SN74HC244DWR we delivered, we will accept the replacement or return of the SN74HC244DWR 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 SN74HC244DWR.

(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