SN74LVTH2245PW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Level Shifter and Bus Transceiver
• Characteristics: High-speed, low-voltage, and low-power consumption
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Bi-directional voltage level translator
• Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Logic Voltage Levels: 1.65V to 3.6V
• Input/Output Compatibility: TTL, CMOS
• Number of Channels: 8
• Output Drive Strength: ±12mA
• Propagation Delay: 4.3ns (Max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVTH2245PW has a total of 20 pins, which are assigned as follows:

• Pins 1 to 4: Channel 1 Data Inputs/Outputs (A1, B1, OE1, DIR)
• Pins 5 to 8: Channel 2 Data Inputs/Outputs (A2, B2, OE2, DIR)
• Pins 9 to 12: Channel 3 Data Inputs/Outputs (A3, B3, OE3, DIR)
• Pins 13 to 16: Channel 4 Data Inputs/Outputs (A4, B4, OE4, DIR)
• Pins 17 to 20: Power Supply and Ground (VCC, GND)

Functional Features

• Bi-directional voltage level translation between two different voltage domains
• Automatic direction control based on the DIR input pin
• Enable/disable control for each channel using the OE pins
• High-speed operation with minimal propagation delay
• Low power consumption, suitable for battery-powered devices
• Wide operating temperature range for various environments

Advantages and Disadvantages

Advantages: - Provides seamless translation between different voltage levels - Supports bidirectional communication between two systems - High-speed operation allows for efficient data transfer - Low power consumption extends battery life in portable devices

Disadvantages: - Limited to a specific number of channels (8 in this case) - Requires careful consideration of voltage compatibility with connected devices - May not be suitable for applications requiring higher drive strength

Working Principles

The SN74LVTH2245PW is designed to translate voltage levels between two different systems. It operates by receiving data inputs from one system and translating them to the appropriate voltage level for the other system. The direction of translation is controlled by the DIR pin, which determines the flow of data. The OE pins enable or disable each channel, allowing selective communication between the systems.

Detailed Application Field Plans

The SN74LVTH2245PW finds applications in various fields, including:

1. Microcontroller Interfacing: It enables communication between microcontrollers operating at different voltage levels.
2. Memory Interfaces: It facilitates data transfer between memory modules with varying voltage requirements.
3. Industrial Automation: It serves as a level shifter for connecting sensors and actuators to control systems.
4. Communication Systems: It enables signal translation between different communication protocols and voltage domains.
5. Consumer Electronics: It allows for compatibility between devices with different logic voltage levels.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Similar functionality with lower power consumption and wider supply voltage range.
2. SN74AVC4T245: Four-channel bidirectional level shifter with enhanced ESD protection.
3. TXB0108: Eight-channel bi-directional voltage-level translator with automatic direction sensing.

These alternative models offer similar features and can be considered based on specific application requirements.

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