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Name: SN74LV4T125RGYR
Brand: Texas Instruments
SKU: SN74LV4T125RGYR
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 SN74LV4T125RGYR

Part No.:: SN74LV4T125RGYR

Manufacturer:: Texas Instruments

Package:: 14-VFQFN Exposed Pad

Datasheet:: SN74LV4T125RGYR.pdf

Description:: IC BUF NON-INVERT 5.5V 14VQFN

In Stock:: 2163

Quantity:: Add To Cart

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SN74LV4T125RGYR Specifications

Package/Case:
14-VFQFN Exposed Pad
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
74LV
ProductStatus:
Active
LogicType:
Buffer, Non-Inverting
NumberofElements:
4
NumberofBitsperElement:
1
InputType:
-
OutputType:
3-State
Current-OutputHighLow:
16mA, 16mA
Voltage-Supply:
1.6V ~ 5.5V
OperatingTemperature:
-40°C ~ 125°C (TA)
MountingType:
Surface Mount

SN74LV4T125RGYR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including SN74LV4T125RGYR price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for SN74LV4T125RGYR to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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SN74LV4T125RGYR information

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SN74LV4T125RGYR Typical application Circuitry

SN74LV4T125RGYR

The SN74LV4T125RGYR is a quadruple bus buffer gate with 3-state outputs. It's designed for voltage translation in multi-voltage systems, particularly for driving high-capacitance loads or low-impedance backplanes. Each buffer has its own output-enable (OE) input, which allows each output to be placed in a high-impedance state.

Application Scenario: Interfacing a Microcontroller with an FPGA at Different Voltage Levels

In this scenario, SN74LV4T125RGYR is used to interface a microcontroller operating at 3.3V with an FPGA operating at 1.8V, ensuring proper voltage level translation and signal integrity.

Circuit Connection Strategy

1. Microcontroller Interface

- Connect the microcontroller's data outputs to the inputs (A1 to A4; Pins 2, 5, 10, 13) of SN74LV4T125RGYR.

- Verify that the microcontroller's voltage levels are compatible with the VCCA level of SN74LV4T125RGYR.

2. FPGA Interface

- Connect the FPGA's data inputs to the corresponding outputs (Y1 to Y4; Pins 3, 6, 9, 12) of SN74LV4T125RGYR.

- Ensure that the FPGA's voltage levels are compatible with the VCCB level of SN74LV4T125RGYR.

3. Output Enable Control

- Connect the output enable pins (OE1 to OE4; Pins 1, 4, 11, 14) of SN74LV4T125RGYR to control outputs from the microcontroller.

- The buffer outputs are enabled/disabled by the OE inputs, which, when deactivated, cause the outputs to become high-impedance.

4. Power Supply Configuration

- Attach Pin 15 (VCCA) to the 3.3V microcontroller power supply and Pin 7 (VCCB) to the 1.8V FPGA power supply.

- Attach pins 8 and 16 of GND to the system ground.

- For the SN74LV4T125RGYR, use decoupling capacitors near the power pins to guarantee a steady power supply and reduce noise.

5. Grounding and Decoupling

- Implement a solid ground plane and place decoupling capacitors at the power pins to minimize noise and stabilize operation.

- Effective grounding and decoupling are essential for the stable functioning of SN74LV4T125RGYR.

Design Parameters

When integrating SN74LV4T125RGYR into a circuit, several important factors need attention:

1. Voltage Level Compatibility

- Confirm that the voltage levels of the microcontroller and FPGA are compatible with the input/output levels of SN74LV4T125RGYR on respective sides.

2. Signal Integrity and Noise Immunity

- Design the circuit to be immune to noise, using proper routing, shielding, and filtering as necessary, especially in mixed-voltage or noisy environments.

3. Power Supply Quality

- Ensure that the power supplies to SN74LV4T125RGYR (VCCA and VCCB) are stable and clean, as fluctuations can impact performance and reliability.

4. Thermal Management

- Assess the thermal load, especially if SN74LV4T125RGYR is expected to drive heavy loads or operate at high frequencies, and consider appropriate cooling solutions if necessary.

5. Output Enable Timing

- Coordinate the timing of the OE signals accurately with the data flow to prevent data corruption or contention on the bus lines.

By addressing these considerations and utilizing the operational features of SN74LV4T125RGYR, engineers can effectively use this quadruple bus buffer in applications requiring interfacing between microcontrollers and FPGAs operating at different voltage levels, ensuring robust data transfer and system integrity.

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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.

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