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74ALVT162821DGGY
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Encyclopedia Entry: 74ALVT162821DGGY

Product Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Level Translator
  • Characteristics: High-speed, low-power, voltage-level shifting
  • Package: DGGY (TSSOP-56)
  • Essence: This IC is designed to translate logic levels between different voltage domains.
  • Packaging/Quantity: Available in reels of 2500 units.

Specifications

  • Logic Family: ALVT
  • Number of Channels: 16
  • Input Voltage Range (VIN): 1.2V - 3.6V
  • Output Voltage Range (VOUT): 1.2V - 3.6V
  • Propagation Delay (tPD): 2.5 ns (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74ALVT162821DGGY IC has a TSSOP-56 package with the following pin configuration:

+---------------------+ OE1 |1 56| VCCB A1 |2 55| B1 A2 |3 54| B2 A3 |4 53| B3 A4 |5 52| B4 A5 |6 51| B5 A6 |7 50| B6 A7 |8 49| B7 A8 |9 48| B8 GND |10 47| B9 OE2 |11 46| B10 A9 |12 45| B11 A10 |13 44| B12 A11 |14 43| B13 A12 |15 42| B14 A13 |16 41| B15 A14 |17 40| B16 A15 |18 39| GND A16 |19 38| OE3 VCCA|20 37| C1 C2 |21 36| C3 C4 |22 35| C5 C6 |23 34| C7 C8 |24 33| C9 GND |25 32| C10 OE4 |26 31| C11 D1 |27 30| C12 D2 |28 29| C13 +---------------------+

Functional Features

  • Provides bidirectional voltage-level translation between two logic voltage domains.
  • Supports level shifting from 1.2V to 3.6V and vice versa.
  • High-speed operation with low propagation delay.
  • Enables interfacing between devices operating at different voltage levels.

Advantages and Disadvantages

Advantages: - Allows seamless communication between devices with different logic voltage requirements. - Low power consumption. - Compact package size for space-constrained applications. - Wide operating temperature range.

Disadvantages: - Limited number of channels (16). - Not suitable for voltage translation beyond the specified range. - Requires careful consideration of input/output voltage compatibility.

Working Principles

The 74ALVT162821DGGY is a voltage-level translator IC that operates by utilizing a combination of MOSFETs and level-shifting circuitry. It receives input signals from one voltage domain and translates them to the corresponding logic levels in another voltage domain. The IC ensures bidirectional communication by providing separate control pins for each direction.

Detailed Application Field Plans

The 74ALVT162821DGGY is commonly used in various applications, including:

  1. Mixed Voltage Systems: Enables communication between microcontrollers, sensors, and other devices operating at different logic voltage levels.
  2. Battery-Powered Devices: Facilitates voltage translation in portable electronics, such as smartphones, tablets, and wearables.
  3. Industrial Automation: Allows interfacing between different voltage domains in control systems, PLCs, and industrial sensors.
  4. Automotive Electronics: Supports voltage-level translation in automotive control units, infotainment systems, and sensor interfaces.

Detailed and Complete Alternative Models

  1. SN74LVC8T245PW: 8-bit dual-supply bus transceiver with configurable voltage translation.
  2. TXB0108PWR: 8-bit bidirectional voltage-level translator with automatic direction sensing. 3

Orodhesha maswali na majibu 10 ya kawaida yanayohusiana na utumiaji wa 74ALVT162821DGGY katika suluhu za kiufundi

Sure! Here are 10 common questions and answers related to the application of 74ALVT162821DGGY in technical solutions:

  1. Q: What is the function of the 74ALVT162821DGGY? A: The 74ALVT162821DGGY is a 20-bit buffer/driver with 3-state outputs, designed to provide high-speed, low-power interface between different logic levels.

  2. Q: What is the operating voltage range for this device? A: The 74ALVT162821DGGY operates within a voltage range of 2.7V to 3.6V.

  3. Q: How many inputs and outputs does this device have? A: This device has 20 inputs and 20 outputs.

  4. Q: What is the maximum output current that can be sourced or sunk by this device? A: The maximum output current that can be sourced or sunk by this device is typically ±24mA.

  5. Q: Can this device be used for bidirectional data transfer? A: No, the 74ALVT162821DGGY is a unidirectional buffer/driver and does not support bidirectional data transfer.

  6. Q: What is the propagation delay of this device? A: The propagation delay of the 74ALVT162821DGGY is typically 3.8ns.

  7. Q: Is this device compatible with TTL (Transistor-Transistor Logic) inputs? A: Yes, the 74ALVT162821DGGY is compatible with TTL inputs and can be used as a level translator between TTL and CMOS logic.

  8. Q: Can I connect multiple 74ALVT162821DGGY devices together to increase the number of inputs/outputs? A: Yes, multiple devices can be connected together to increase the number of inputs/outputs. However, proper buffering and signal integrity considerations should be taken into account.

  9. Q: What is the power supply current consumption of this device? A: The power supply current consumption of the 74ALVT162821DGGY depends on the operating conditions but typically ranges from 10mA to 50mA.

  10. Q: Can this device tolerate overvoltage or undervoltage conditions? A: The 74ALVT162821DGGY has built-in protection features that allow it to tolerate limited overvoltage and undervoltage conditions, but it is recommended to operate within the specified voltage range for reliable operation.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for the 74ALVT162821DGGY.