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Name: SN74LS245NSR
Brand: Texas Instruments
SKU: SN74LS245NSR
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 SN74LS245NSR

Part No.:: SN74LS245NSR

Manufacturer:: Texas Instruments

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

Datasheet:: SN74LS245NSR.pdf

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

In Stock:: 30094

Quantity:: Add To Cart

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SN74LS245NSR Specifications

Package/Case:
20-SOIC (0.209, 5.30mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
74LS
ProductStatus:
Active
LogicType:
Transceiver, Non-Inverting
NumberofElements:
1
NumberofBitsperElement:
8
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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SN74LS245NSR information

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SN74LS245NSR Typical application Circuitry

SN74LS245NSR

The SN74LS245NSR is a type of integrated circuit known as a bus transceiver, specifically designed for bidirectional communication. This chip is commonly used in various applications, particularly in digital systems where data transfer between different buses is required.

Key Features of the SN74LS245NSR:

1. Bidirectional Data Transfer: Allows two-way communication, making it versatile in different circuit designs.

2. Octal Bus Interface: Contains eight channels, facilitating parallel data transfer.

3. Low Power Consumption: Adheres to the low-power standards of the LS (Low Power Schottky) technology.

4. High-Speed Operation: Suitable for applications requiring fast data transfer.

Application Scenario and Detailed Circuit Connection:

Let's consider an application where the SN74LS245NSR is used for interfacing a microcontroller with a memory module.

1. Microcontroller Interface: Connect the data lines of the microcontroller to the A-side (pins 2-9) of the SN74LS245NSR.

2. Memory Module Interface: Connect the B-side (pins 18-11) to the data lines of the memory module.

3. Direction Control (DIR, Pin 1): Connect this pin to a control signal from the microcontroller. When this pin is high, data flows from A to B, and vice versa.

4. Output Enable (OE, Pin 19): Connect this to another control line. It is used to enable the outputs while low and to effectively isolate the buses when high, putting the outputs in a high-impedance state.

5. Energy Source: Attach Pin 20 (Vcc) to a +5V power source, and Pin 10 (GND) to ground.

6. Decoupling Capacitor: Place a 0.1µF capacitor between Vcc and GND near the chip for noise reduction.

Design Considerations:

- Signal Integrity: Ensure minimal line length and proper termination to reduce signal reflection and crosstalk.

- Power Supply Stability: Stable and clean power supply to prevent operational errors.

- Thermal Management: Adequate spacing and cooling if used in high-frequency applications to avoid overheating.

In summary, the SN74LS245NSR is a versatile chip used in digital systems for efficient and reliable data transfer. Its application in interfacing different modules, like a microcontroller with a memory unit, demonstrates its utility in complex digital environments. For best results, signal integrity, power supply stability, and thermal management must be taken into account while building circuits with this chip.

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6. What is the process for return or replacement of SN74LS245NSR?

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 SN74LS245NSR we delivered, we will accept the replacement or return of the SN74LS245NSR 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 SN74LS245NSR.

(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