SN74LVC126APWR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Buffer/Driver
• Characteristics: Low Voltage, Quad Bus Buffer Gate
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic Level Translator
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• High-Level Input Voltage: 0.7 x VCC to VCC
• Low-Level Input Voltage: 0V to 0.3 x VCC
• High-Level Output Voltage: 0.9 x VCC to VCC
• Low-Level Output Voltage: 0V to 0.1 x VCC
• Maximum Operating Frequency: 80 MHz
• Number of Pins: 14

Detailed Pin Configuration

The SN74LVC126APWR has a total of 14 pins arranged as follows:

1. OE (Output Enable) - Active Low Output Enable
2. A1 - Input A1
3. Y1 - Output Y1
4. GND - Ground
5. Y2 - Output Y2
6. A2 - Input A2
7. VCC - Power Supply
8. B1 - Input B1
9. Y3 - Output Y3
10. B2 - Input B2
11. Y4 - Output Y4
12. OE (Output Enable) - Active Low Output Enable
13. GND - Ground
14. VCC - Power Supply

Functional Features

• Quad bus buffer gate with 3-state outputs
• Supports voltage level translation between different logic families
• Allows bidirectional voltage translation
• Provides buffering and driving capabilities for digital signals

Advantages and Disadvantages

Advantages: - Low voltage operation allows compatibility with a wide range of systems - 3-state outputs enable easy connection to multiple devices - High-speed operation supports fast data transfer rates

Disadvantages: - Limited number of input/output channels (4 in this case) - Not suitable for high-power applications

Working Principles

The SN74LVC126APWR is a quad bus buffer gate that operates as a logic level translator. It takes input signals from one logic family and provides output signals compatible with another logic family. The device uses a combination of transistors and resistors to achieve the desired voltage translation.

When the output enable (OE) pin is low, the device is enabled, and the input signals are passed through to the corresponding output pins. When the OE pin is high, the outputs are in a high-impedance state, effectively disconnecting them from the input signals.

Detailed Application Field Plans

The SN74LVC126APWR can be used in various applications, including:

1. Microcontroller interfacing: It can be used to interface microcontrollers operating at different voltage levels.
2. Level shifting: It can be used to shift logic levels between different parts of a system, ensuring proper signal compatibility.
3. Bus buffering: It can be used to buffer and drive signals on a bus, allowing multiple devices to communicate efficiently.

Detailed and Complete Alternative Models

Some alternative models to the SN74LVC126APWR include:

1. SN74LVC125APWR: Similar to SN74LVC126APWR but with tri-state outputs instead of 3-state outputs.
2. SN74LVC244APWR: Octal buffer/line driver with 3-state outputs.
3. SN74LVC07APWR: Hex buffer/driver with open-drain outputs.

These alternative models offer similar functionality but may have different pin configurations or package options.

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