SN74LVC543APWRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Logic Level Shifter
• Characteristics:
  • Low-voltage CMOS technology
  • High-speed, low-power consumption
  • Bidirectional voltage level shifting
  • Wide operating voltage range
• Package: TSSOP (Thin Shrink Small Outline Package)
• Essence: Logic level shifting between different voltage domains
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Maximum Operating Frequency: 80 MHz
• Number of Channels: 8
• Input/Output Type: Tri-State
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVC543APWRE4 has a total of 20 pins, which are assigned as follows:

1. OE (Output Enable) 1
2. A1 (Data Input/Output) 1
3. B1 (Data Input/Output) 1
4. GND (Ground)
5. B2 (Data Input/Output) 2
6. A2 (Data Input/Output) 2
7. OE (Output Enable) 2
8. VCC (Supply Voltage)
9. D1 (Data Input/Output) 1
10. C1 (Data Input/Output) 1
11. D2 (Data Input/Output) 2
12. C2 (Data Input/Output) 2
13. OE (Output Enable) 3
14. E1 (Data Input/Output) 1
15. F1 (Data Input/Output) 1
16. GND (Ground)
17. F2 (Data Input/Output) 2
18. E2 (Data Input/Output) 2
19. OE (Output Enable) 4
20. VCC (Supply Voltage)

Functional Features

• Bidirectional voltage level shifting between two voltage domains
• Tri-State outputs for easy interfacing with other devices
• High-speed operation suitable for various applications
• Low power consumption for energy-efficient designs
• Wide operating voltage range allows compatibility with different systems

Advantages and Disadvantages

Advantages: - Enables communication between devices operating at different voltage levels - Supports bidirectional data transfer - High-speed operation allows for efficient data processing - Low power consumption helps in reducing overall system energy usage

Disadvantages: - Limited to a maximum operating frequency of 80 MHz - Requires careful consideration of input/output voltage levels to avoid signal distortion or damage

Working Principles

The SN74LVC543APWRE4 is designed to shift logic levels between different voltage domains. It utilizes low-voltage CMOS technology, allowing it to operate at a wide supply voltage range of 1.65V to 5.5V. The IC features bidirectional data transfer, enabling communication between devices operating at different voltage levels.

The device consists of eight channels, each with tri-state outputs. The tri-state outputs provide flexibility in connecting the IC to other devices, as they can be easily enabled or disabled. This feature allows multiple devices to share a common bus without interfering with each other's signals.

The SN74LVC543APWRE4 operates by receiving data inputs from one voltage domain and shifting them to the corresponding voltage level of the other domain. It ensures reliable data transmission by maintaining proper voltage levels and minimizing signal distortion.

Detailed Application Field Plans

The SN74LVC543APWRE4 is commonly used in various applications that require logic level shifting between different voltage domains. Some of the typical application fields include:

1. Microcontroller Interfacing: The IC facilitates communication between microcontrollers operating at different voltage levels, allowing them to exchange data seamlessly.

2. Sensor Interfaces: It enables connection between sensors and microcontrollers or other devices with different voltage requirements, ensuring accurate data acquisition and processing.

3. Communication Systems: The IC plays a vital role in voltage level translation within communication systems, such as UART (Universal Asynchronous Receiver-Transmitter) interfaces, I2C (Inter-Integrated Circuit) buses, or SPI (Serial Peripheral Interface) connections.

4. Industrial Automation: It finds applications in industrial automation systems where different components, such as PLCs (Programmable Logic Controllers) and sensors, operate at different voltage levels.

Detailed and Complete Alternative Models

1. TXB0108PWR: 8-Bit Bidirectional Voltage-Level Translator
2. PCA9306DCTR: Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator
3. SN74AV