Texas Instruments
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SN74LVC861APW
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SN74LVC861APW

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Level Translator
  • Characteristics: Low Voltage, CMOS Technology
  • Package: TSSOP-24
  • Essence: Bi-directional Voltage Translation
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • High-Level Input Voltage: 2.3V to VCC + 0.5V
  • Low-Level Input Voltage: -0.5V to 0.8V
  • High-Level Output Voltage: VCC - 0.4V
  • Low-Level Output Voltage: 0.4V
  • Maximum Operating Frequency: 100MHz
  • Propagation Delay: 2.9ns (Max) at 3.3V
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVC861APW has a TSSOP-24 package with the following pin configuration:

  1. A1
  2. B1
  3. GND
  4. A2
  5. B2
  6. OE
  7. VCC
  8. B3
  9. A3
  10. B4
  11. A4
  12. B5
  13. A5
  14. B6
  15. A6
  16. B7
  17. A7
  18. B8
  19. A8
  20. VREF
  21. GND
  22. B9
  23. A9
  24. B10

Functional Features

  • Bi-directional voltage translation between two different voltage domains.
  • Supports level shifting between 1.65V and 5.5V.
  • Provides bidirectional data flow with automatic direction sensing.
  • Low power consumption due to CMOS technology.
  • High-speed operation with a maximum frequency of 100MHz.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Bi-directional translation simplifies interfacing between different voltage levels. - Automatic direction sensing eliminates the need for additional control signals. - Low power consumption makes it suitable for battery-powered applications. - High-speed operation enables efficient data transfer.

Disadvantages: - Limited number of translation channels (10 in this case). - Propagation delay may affect timing-sensitive applications. - Not suitable for voltage translation beyond the specified range.

Working Principles

The SN74LVC861APW is designed using CMOS technology, which allows for low power consumption and high-speed operation. It utilizes a bidirectional voltage translation technique to enable communication between two voltage domains. The device automatically senses the direction of data flow and adjusts the voltage levels accordingly. This eliminates the need for additional control signals, simplifying system design. The IC operates within a specified supply voltage range and provides reliable level shifting between 1.65V and 5.5V.

Detailed Application Field Plans

The SN74LVC861APW finds applications in various fields where voltage translation is required. Some potential application areas include:

  1. Microcontroller Interfaces: Facilitating communication between microcontrollers operating at different voltage levels.
  2. Sensor Networks: Enabling connectivity between sensors and microcontrollers with varying voltage requirements.
  3. Industrial Automation: Supporting voltage translation in control systems and interface circuits.
  4. Consumer Electronics: Bridging the gap between different voltage domains in devices like smartphones, tablets, and gaming consoles.
  5. Automotive Electronics: Providing level shifting capabilities in automotive control units and infotainment systems.

Detailed and Complete Alternative Models

  1. TXB0108: An 8-bit bi-directional voltage translator with a wide supply voltage range and automatic direction sensing.
  2. PCA9306: A dual bidirectional I2C-bus and SMBus voltage-level translator with configurable voltage levels.
  3. SN74LVC4245A: A 16-bit dual-supply bus transceiver with configurable voltage translation and direction control.

These alternative models offer similar functionality to the SN74LVC861APW and can be considered based on specific application requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74LVC861APW v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74LVC861APW:

  1. Q: What is the SN74LVC861APW? A: The SN74LVC861APW is a high-speed, low-voltage, 10-bit bus switch with configurable voltage translation capabilities.

  2. Q: What is the voltage range supported by SN74LVC861APW? A: The SN74LVC861APW supports voltage translation between 1.2V and 3.6V.

  3. Q: Can I use the SN74LVC861APW for bidirectional level shifting? A: Yes, the SN74LVC861APW can be used for bidirectional level shifting as it has separate input/output ports for each bit.

  4. Q: What is the maximum data rate supported by SN74LVC861APW? A: The SN74LVC861APW supports data rates up to 100 Mbps.

  5. Q: How many bits can be translated simultaneously using SN74LVC861APW? A: The SN74LVC861APW can translate up to 10 bits simultaneously.

  6. Q: Can I use the SN74LVC861APW in both push-pull and open-drain configurations? A: Yes, the SN74LVC861APW supports both push-pull and open-drain output configurations.

  7. Q: Does the SN74LVC861APW have built-in ESD protection? A: Yes, the SN74LVC861APW has built-in ESD protection, making it suitable for robust applications.

  8. Q: Can I use the SN74LVC861APW in hot-swapping applications? A: Yes, the SN74LVC861APW supports hot-swapping as it has a low input/output capacitance.

  9. Q: What is the power supply voltage range for SN74LVC861APW? A: The SN74LVC861APW operates with a power supply voltage range of 1.65V to 3.6V.

  10. Q: Is the SN74LVC861APW RoHS compliant? A: Yes, the SN74LVC861APW is RoHS compliant, ensuring it meets environmental regulations.

Please note that these answers are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with technical experts for accurate information.