SN74ABT8652DW

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics: High-speed, bidirectional voltage translation between different logic levels
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Voltage level shifting for seamless communication between devices operating at different logic levels
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.2V to 3.6V
• Logic Voltage Levels: 1.2V, 1.8V, 2.5V, 3.3V
• Maximum Data Rate: 100 Mbps
• Number of Channels: 8
• Input/Output Compatibility: TTL, CMOS, LVCMOS
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74ABT8652DW has a total of 48 pins, which are divided into various functional groups:

1. VCCA, VCCB: Power supply pins for the A and B side of the translator.
2. GND: Ground reference pin.
3. OEAB, OEBA: Output enable pins for controlling the direction of data flow.
4. A1-A8, B1-B8: Bidirectional data input/output pins.
5. DIR: Direction control pin for selecting the translation direction.
6. VREF: Reference voltage pin for determining the logic thresholds.

Functional Features

• Bidirectional Voltage Translation: Allows seamless communication between devices operating at different logic levels.
• Automatic Direction Control: The DIR pin determines the translation direction, eliminating the need for external control signals.
• Wide Supply Voltage Range: Supports operation with supply voltages ranging from 1.2V to 3.6V.
• High-Speed Operation: Capable of translating data at speeds up to 100 Mbps.
• Multiple Logic Voltage Levels: Compatible with various logic families such as TTL, CMOS, and LVCMOS.

Advantages and Disadvantages

Advantages: - Enables communication between devices with different logic voltage levels. - Automatic direction control simplifies system design. - Supports high-speed data transmission. - Wide supply voltage range allows compatibility with various systems.

Disadvantages: - Limited to 8 channels of bidirectional translation. - May introduce slight signal degradation due to voltage level shifting.

Working Principles

The SN74ABT8652DW utilizes a combination of level-shifting circuitry and automatic direction control to achieve bidirectional voltage translation. The DIR pin determines the direction of translation, while the internal circuitry ensures proper voltage level shifting between the A and B sides. The reference voltage (VREF) sets the logic thresholds for reliable data transfer.

Detailed Application Field Plans

1. IoT Devices: Facilitates communication between low-power microcontrollers operating at different logic levels.
2. Industrial Automation: Enables seamless integration of sensors and actuators with different voltage requirements.
3. Consumer Electronics: Allows interconnection between devices with varying logic voltage levels, such as smartphones and peripherals.
4. Automotive Systems: Supports communication between different subsystems operating at different voltage levels, enhancing overall system reliability.

Detailed and Complete Alternative Models

1. TXB0108: Similar bidirectional voltage translator with 8 channels and automatic direction control.
2. PCA9306: I2C-bus voltage level translator with two bidirectional channels.
3. SN74LVC4245A: Octal bus transceiver and voltage level shifter with 8 channels.

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