SN74ABT843DBRG4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • High-speed operation
  • Wide voltage range
  • Bidirectional translation capability
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level translation between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2 V to 6 V
• Input Voltage Range (VREF): 0 V to VCC
• Output Voltage Range (A/B Ports): 0 V to VCC
• Maximum Input Current: ±50 mA
• Maximum Output Current: ±100 mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74ABT843DBRG4 has a total of 20 pins. The pin configuration is as follows:

1. OE1 (Output Enable Input 1)
2. A1 (Data Input/Output Port A1)
3. B1 (Data Input/Output Port B1)
4. GND (Ground)
5. B2 (Data Input/Output Port B2)
6. A2 (Data Input/Output Port A2)
7. OE2 (Output Enable Input 2)
8. VCC (Supply Voltage)
9. B3 (Data Input/Output Port B3)
10. A3 (Data Input/Output Port A3)
11. B4 (Data Input/Output Port B4)
12. A4 (Data Input/Output Port A4)
13. B5 (Data Input/Output Port B5)
14. A5 (Data Input/Output Port A5)
15. B6 (Data Input/Output Port B6)
16. A6 (Data Input/Output Port A6)
17. B7 (Data Input/Output Port B7)
18. A7 (Data Input/Output Port A7)
19. VREF (Voltage Reference Input)
20. VCC (Supply Voltage)

Functional Features

• Bidirectional voltage level translation between two different voltage domains
• Automatic direction sensing and control
• High-speed operation with minimal propagation delay
• Supports wide voltage range for compatibility with various systems
• Output enable control for easy interfacing with other devices

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different voltage levels - Fast and efficient voltage level translation - Wide supply voltage range allows for versatile applications - Compact TSSOP package for space-constrained designs

Disadvantages: - May introduce slight signal degradation due to voltage level translation - Requires careful consideration of input/output voltage compatibility

Working Principles

The SN74ABT843DBRG4 is a logic level translator designed to facilitate communication between devices operating at different voltage levels. It uses a bidirectional voltage translation technique to ensure seamless data transfer.

The device automatically senses the direction of data flow and adjusts the voltage levels accordingly. It supports a wide voltage range, allowing it to interface with systems operating at different supply voltages. The output enable control pin enables easy interfacing with other devices by enabling or disabling the translation function.

Detailed Application Field Plans

The SN74ABT843DBRG4 can be used in various applications that require voltage level translation. Some potential application fields include:

1. Microcontroller Interfaces: Facilitating communication between microcontrollers operating at different voltage levels.
2. Sensor Networks: Enabling data exchange between sensors and microcontrollers with varying voltage requirements.
3. Industrial Automation: Bridging the gap between different voltage domains in industrial automation systems.
4. Communication Systems: Supporting voltage level translation in communication interfaces, such as UART, SPI, and I2C.
5. Automotive Electronics: Enabling compatibility between different voltage domains in automotive electronic systems.

Detailed and Complete Alternative Models

1. SN74LVC4245A: Bidirectional voltage level translator with 8-bit data width.
2. TXB0108: Octal bidirectional voltage-level translator with automatic direction sensing.
3. PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator.
4. CD4050B: Hex non-inverting buffer and converter for voltage level translation.
5. TXS0108E: 8-channel bidirectional voltage-level translator with automatic direction sensing.

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

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