74LVT543DB,118

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Translator
• Characteristics:
  • Voltage Level Translation: 3.3V to 5V and vice versa
  • Bidirectional Data Transfer
  • High-Speed Operation
  • Low Power Consumption
• Package: SSOP-24
• Essence: Translates logic levels between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 3.6V
• Input Voltage Range (Vref): GND to VCC
• Output Voltage Range (A/B Ports): GND to VCC
• Maximum Input Current: ±50mA
• Maximum Output Current: ±50mA
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. OE (Output Enable) - Active Low Output Enable
2. A1 - Data Input/Output Port A, LSB
3. A2 - Data Input/Output Port A
4. A3 - Data Input/Output Port A
5. A4 - Data Input/Output Port A
6. A5 - Data Input/Output Port A
7. GND - Ground
8. B5 - Data Input/Output Port B, MSB
9. B4 - Data Input/Output Port B
10. B3 - Data Input/Output Port B
11. B2 - Data Input/Output Port B
12. B1 - Data Input/Output Port B
13. VCC - Supply Voltage
14. DIR - Direction Control Input
15. OE (Output Enable) - Active Low Output Enable
16. B6 - Data Input/Output Port B
17. B7 - Data Input/Output Port B
18. B8 - Data Input/Output Port B
19. B9 - Data Input/Output Port B
20. B10 - Data Input/Output Port B
21. GND - Ground
22. A10 - Data Input/Output Port A
23. A9 - Data Input/Output Port A
24. A8 - Data Input/Output Port A

Functional Features

• Bidirectional voltage level translation between 3.3V and 5V logic signals
• Allows interfacing between microcontrollers, sensors, and other devices operating at different voltage levels
• Supports high-speed data transfer with minimal delay
• Low power consumption for energy-efficient applications
• Output enable control for disabling the outputs when not in use

Advantages

• Simplifies the design of mixed-voltage systems by providing a reliable level translation solution
• Enables seamless communication between devices operating at different voltage domains
• High-speed operation allows for efficient data transfer in time-critical applications
• Low power consumption helps prolong battery life in portable devices

Disadvantages

• Limited to voltage level translation between 3.3V and 5V, may not be suitable for other voltage ranges
• Requires careful consideration of input/output voltage compatibility to prevent damage to the IC or connected devices

Working Principles

The 74LVT543DB,118 is a bidirectional logic level translator that uses a combination of MOSFETs and CMOS technology to achieve voltage level translation between 3.3V and 5V logic signals. The direction of data flow is controlled by the DIR pin, while the OE pin enables or disables the outputs. When enabled, the IC translates the logic levels from one voltage domain to another, allowing seamless communication between devices operating at different voltage levels.

Detailed Application Field Plans

• Microcontroller interfacing with sensors or peripherals operating at different voltage levels
• Communication between devices in mixed-voltage systems, such as industrial automation and automotive applications
• Level translation in data communication protocols, such as I2C, SPI, or UART

Detailed and Complete Alternative Models

• 74LVC543A: Similar functionality but operates at a wider supply voltage range (1.65V to 5.5V)
• SN74LVC1T45: Single-bit bidirectional level translator with automatic direction sensing
• TXB0108: Eight-channel bidirectional voltage-level translator with automatic direction control

Note: The above alternative models are provided for reference and may have different specifications and pin configurations. It is recommended to consult the respective datasheets for detailed information.

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