SN74LVT245BGQNR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: Low Voltage, Bi-directional, 8-bit, Non-inverting
• Package: 48-pin TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic Level Translation and Signal Transmission
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 3.6V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 100MHz
• Number of Channels: 8
• Input/Output Type: Tri-State
• Propagation Delay Time: 4.2ns (Max)
• High-Level Output Current: -32mA (Min), 64mA (Max)
• Low-Level Output Current: 64mA (Min), -32mA (Max)

Detailed Pin Configuration

The SN74LVT245BGQNR has a total of 48 pins, which are divided into various functional groups:

• Pins 1 to 8: A1 to A8 (Input/Output for Port A)
• Pins 9 to 16: B1 to B8 (Input/Output for Port B)
• Pins 17 to 24: GND (Ground)
• Pins 25 to 32: B8 to B1 (Input/Output for Port B, in reverse order)
• Pins 33 to 40: A8 to A1 (Input/Output for Port A, in reverse order)
• Pins 41 to 48: VCC (Supply Voltage)

Functional Features

• Bi-directional level shifting between two voltage domains.
• Non-inverting logic translation for bidirectional data flow.
• Tri-state outputs allow multiple devices to share a common bus.
• Supports voltage level translation between 1.8V, 2.5V, and 3.3V systems.
• Provides protection against bus contention and excessive power dissipation.

Advantages

• Wide supply voltage range allows compatibility with various systems.
• High-speed operation enables efficient data transfer.
• Bi-directional capability simplifies system design.
• Tri-state outputs enhance bus sharing and reduce conflicts.
• Low power consumption for energy-efficient applications.

Disadvantages

• Limited to 8-bit data transmission.
• Not suitable for high-voltage applications.
• May require additional components for noise filtering or signal conditioning.

Working Principles

The SN74LVT245BGQNR is designed to translate logic levels between two different voltage domains. It uses a combination of CMOS (Complementary Metal-Oxide-Semiconductor) and TTL (Transistor-Transistor Logic) technologies to achieve bidirectional data transfer. The device operates by monitoring the input voltage levels and adjusting the output voltage levels accordingly, ensuring proper signal transmission between the connected systems.

Detailed Application Field Plans

The SN74LVT245BGQNR is commonly used in various applications that require level shifting and bus transceiver functionality. Some of the typical application fields include:

1. Microcontroller Interfacing: The IC facilitates communication between microcontrollers operating at different voltage levels, enabling seamless integration of diverse systems.

2. Data Communication Systems: It is utilized in serial and parallel data communication interfaces, such as UART (Universal Asynchronous Receiver-Transmitter), SPI (Serial Peripheral Interface), and I2C (Inter-Integrated Circuit) buses.

3. Industrial Automation: The device finds application in industrial control systems, where it helps interface between different voltage domains, allowing efficient data exchange between sensors, actuators, and controllers.

4. Consumer Electronics: It is used in various consumer electronic devices, including smartphones, tablets, and gaming consoles, to enable communication between different subsystems operating at different voltage levels.

Detailed and Complete Alternative Models

1. TXB0108PWR: 8-bit Bi-directional Voltage-Level Translator with Automatic Direction Sensing.
2. PCA9306DCTR: Dual Bidirectional I2C-Bus and SMBus Voltage-Level Translator.
3. SN74LVC4245APW: Octal Bus Transceiver with 3-State Outputs.
4. CD4050BE: Hex Non-Inverting Buffer/Converter.

These alternative models offer similar functionality and can be considered as substitutes for the SN74LVT245BGQNR based on specific application requirements.

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