SN74LVTH646PW

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
• Data Rate: Up to 400 Mbps
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVTH646PW has a total of 24 pins, which are distributed as follows:

• Pin 1: OE (Output Enable) 1
• Pin 2: A1 (Data Input/Output) 1
• Pin 3: A2 (Data Input/Output) 1
• Pin 4: A3 (Data Input/Output) 1
• Pin 5: A4 (Data Input/Output) 1
• Pin 6: A5 (Data Input/Output) 1
• Pin 7: A6 (Data Input/Output) 1
• Pin 8: A7 (Data Input/Output) 1
• Pin 9: GND (Ground)
• Pin 10: B7 (Data Input/Output) 2
• Pin 11: B6 (Data Input/Output) 2
• Pin 12: B5 (Data Input/Output) 2
• Pin 13: B4 (Data Input/Output) 2
• Pin 14: B3 (Data Input/Output) 2
• Pin 15: B2 (Data Input/Output) 2
• Pin 16: B1 (Data Input/Output) 2
• Pin 17: VCC (Power Supply)
• Pin 18: OE (Output Enable) 2
• Pin 19: DIR (Direction Control)
• Pin 20: GND (Ground)
• Pin 21: A8 (Data Input/Output) 1
• Pin 22: B8 (Data Input/Output) 2
• Pin 23: BDIR (Direction Control)
• Pin 24: VCC (Power Supply)

Functional Features

• Bi-directional voltage level translation between two different voltage domains.
• Automatic direction control based on the DIR and BDIR pins.
• Output enable/disable control for each channel using the OE1 and OE2 pins.
• High-speed data transmission up to 400 Mbps.
• Low power consumption and wide operating temperature range.

Advantages and Disadvantages

Advantages: - Supports bidirectional communication between different voltage levels. - High-speed data transfer capability. - Low power consumption. - Wide operating temperature range.

Disadvantages: - Limited number of channels (8 in total). - Requires careful consideration of voltage compatibility with connected devices.

Working Principles

The SN74LVTH646PW is designed to translate digital signals between two voltage domains. It utilizes a combination of level shifters and bus transceivers to ensure bidirectional communication. The DIR and BDIR pins control the direction of data flow, while the OE1 and OE2 pins enable or disable the outputs. The IC operates within a specified supply voltage range and converts logic voltage levels from one domain to another, allowing seamless integration of devices operating at different voltage levels.

Detailed Application Field Plans

The SN74LVTH646PW finds applications in various fields, including:

1. Communication Systems: Facilitates level shifting between different communication protocols and voltage domains.
2. Embedded Systems: Enables interfacing between microcontrollers and peripheral devices operating at different voltage levels.
3. Industrial Automation: Supports bidirectional data transfer between control systems and sensors/actuators with varying voltage requirements.
4. Automotive Electronics: Provides voltage level translation for communication buses and interfaces within automotive systems.
5. Consumer Electronics: Allows integration of components operating at different voltage levels, such as memory modules and display panels.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Octal Bus Transceiver with Voltage Level Shifting
2. SN74AVC4T245: Quad-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation
3. SN74LVC8T245: 8-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation
4. SN74LVC2T45: Dual-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation
5. SN74