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SN74ABT245BPWG4
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SN74ABT245BPWG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Bus Transceiver
  • Characteristics: High-speed, low-power, bidirectional voltage-level translator
  • Package: TSSOP (Thin Shrink Small Outline Package)
  • Essence: Translates signals between different voltage levels in digital systems
  • Packaging/Quantity: Available in reels of 2500 pieces

Specifications

  • Supply Voltage Range: 2 V to 5.5 V
  • Input Voltage Range: 0 V to VCC
  • Output Voltage Range: 0 V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Number of Channels: 8
  • Maximum Data Rate: 100 Mbps

Detailed Pin Configuration

The SN74ABT245BPWG4 has a total of 20 pins. The pin configuration is as follows:

  1. OE (Output Enable) 1
  2. A1 (Data Input/Output) 1
  3. B1 (Data Input/Output) 1
  4. A2 (Data Input/Output) 2
  5. B2 (Data Input/Output) 2
  6. A3 (Data Input/Output) 3
  7. B3 (Data Input/Output) 3
  8. A4 (Data Input/Output) 4
  9. B4 (Data Input/Output) 4
  10. GND (Ground)
  11. B5 (Data Input/Output) 5
  12. A5 (Data Input/Output) 5
  13. B6 (Data Input/Output) 6
  14. A6 (Data Input/Output) 6
  15. B7 (Data Input/Output) 7
  16. A7 (Data Input/Output) 7
  17. B8 (Data Input/Output) 8
  18. A8 (Data Input/Output) 8
  19. VCC (Supply Voltage)
  20. OE (Output Enable) 2

Functional Features

  • Bidirectional voltage-level translation between two different voltage domains
  • Supports both 3.3V and 5V systems
  • High-speed data transmission with minimal propagation delay
  • Low power consumption for energy-efficient operation
  • Output enable control for easy interfacing with other devices

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Fast data transmission speed enhances system performance - Low power consumption reduces energy usage - Bidirectional capability simplifies signal translation in both directions

Disadvantages: - Limited number of channels may restrict the number of signals that can be translated simultaneously - Requires careful consideration of input and output voltage levels to prevent damage to the IC

Working Principles

The SN74ABT245BPWG4 is a bidirectional level shifter and bus transceiver. It operates by translating digital signals between two voltage domains, typically 3.3V and 5V systems. The IC uses a combination of voltage level shifters and buffers to ensure proper signal translation while minimizing propagation delay.

The device features an output enable pin that controls the direction of data flow. When the output enable pin is high, the IC acts as a buffer, allowing data to pass from the A-side to the B-side or vice versa. When the output enable pin is low, the IC isolates the A-side and B-side, preventing any data transfer.

Detailed Application Field Plans

The SN74ABT245BPWG4 is widely used in various digital systems where voltage level translation is required. Some common application fields include:

  1. Microcontroller Interfacing: The IC enables communication between microcontrollers operating at different voltage levels, allowing seamless integration of various components in a system.

  2. Communication Protocols: It is used in systems utilizing different communication protocols, such as UART, SPI, or I2C, to ensure proper signal translation and compatibility between devices.

  3. Mixed Voltage Systems: The IC facilitates the interaction between subsystems operating at different voltage levels, enabling efficient data transfer and control.

  4. Industrial Automation: It finds applications in industrial automation systems where different modules or sensors operate at varying voltage levels, ensuring reliable data exchange.

Detailed and Complete Alternative Models

  1. SN74LVC245APW: Low-Voltage CMOS Octal Bus Transceiver
  2. SN74HCT245N: High-Speed CMOS Octal Bus Transceiver
  3. SN74LVCH245ADBR: Low-Voltage CMOS Octal Bus Transceiver with 3-State Outputs
  4. SN74CBT3257CPWR: Quad FET Bus Switch

These alternative models offer similar functionality and can be considered as alternatives to the SN74ABT245BPWG4 based on specific requirements and system

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74ABT245BPWG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74ABT245BPWG4 in technical solutions:

  1. Q: What is SN74ABT245BPWG4? A: SN74ABT245BPWG4 is a bidirectional octal bus transceiver with 3-state outputs, commonly used for level shifting and signal buffering in digital systems.

  2. Q: What is the operating voltage range of SN74ABT245BPWG4? A: The operating voltage range of SN74ABT245BPWG4 is typically between 4.5V and 5.5V.

  3. Q: How many bidirectional channels does SN74ABT245BPWG4 have? A: SN74ABT245BPWG4 has 8 bidirectional channels, allowing data transmission in both directions.

  4. Q: What is the maximum data transfer rate supported by SN74ABT245BPWG4? A: SN74ABT245BPWG4 supports a maximum data transfer rate of 100 MHz.

  5. Q: Can SN74ABT245BPWG4 be used for voltage level shifting? A: Yes, SN74ABT245BPWG4 can be used for voltage level shifting as it supports bidirectional data transmission between different voltage domains.

  6. Q: Does SN74ABT245BPWG4 have built-in protection features? A: Yes, SN74ABT245BPWG4 has built-in ESD (Electrostatic Discharge) protection on all inputs and outputs.

  7. Q: What is the output drive strength of SN74ABT245BPWG4? A: SN74ABT245BPWG4 has a typical output drive strength of ±12 mA.

  8. Q: Can SN74ABT245BPWG4 be used in high-speed applications? A: Yes, SN74ABT245BPWG4 is designed for high-speed operation and can be used in various high-speed digital systems.

  9. Q: Does SN74ABT245BPWG4 support 3-state outputs? A: Yes, SN74ABT245BPWG4 supports 3-state outputs, allowing multiple devices to share a common bus without interfering with each other.

  10. Q: What package does SN74ABT245BPWG4 come in? A: SN74ABT245BPWG4 is available in a TSSOP (Thin Shrink Small Outline Package) with 20 pins.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.