SN74AVC2T45DCUTG4
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Texas Instruments SN74AVC2T45DCUTG4

Manufacturer No:
SN74AVC2T45DCUTG4
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC TRNSLTR BIDIRECTIONAL US8
Delivery:
Payment:
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Product Introduction

Overview

The SN74AVC2T45DCUTG4, produced by Texas Instruments, is a 2-bit, dual-supply bus transceiver designed for asynchronous communication between two data buses. This device supports universal low-voltage bidirectional translation and level-shifting between various voltage nodes, including 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V. The transceiver features two separate configurable power-supply rails, VCCA and VCCB, which allow it to operate with different voltage levels on each port. The direction-control (DIR) input determines the direction of data transmission between the A and B ports, enabling flexible data transfer in various system configurations.

Key Specifications

Parameter Value Unit
Supply Voltage (VCCA, VCCB) 1.2V to 3.6V V
Input Voltage (A and B ports) -0.5 to 4.6V V
Output Voltage (A and B ports) -0.5 to VCCA + 0.5V (A port), -0.5 to VCCB + 0.5V (B port) V
Continuous Output Current ±50 mA mA
Propagation Delay (Low to High, High to Low) 2.2 ns to 3.4 ns (depending on VCCA and VCCB) ns
Operating Temperature Range -40°C to 85°C °C
Package Types DCT (SSOP, 8 pins), DCU (VSSOP, 8 pins), YZP (DSBGA, 8 pins), DDF (SOT-23, 8 pins)

Key Features

  • Dual-bit, dual-supply bus transceiver for asynchronous communication between two data buses.
  • Supports universal low-voltage bidirectional translation and level-shifting between 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes.
  • Configurable power-supply rails (VCCA and VCCB) for flexible voltage operation.
  • Direction-control (DIR) input to determine data transmission direction.
  • 3-state outputs to reduce power consumption and prevent bus contention.
  • VCC isolation feature: if either VCC input is at GND, both ports are in the high-impedance state.
  • Low propagation delay and high-speed data transfer.

Applications

  • Asynchronous communication between different voltage domains in mixed-voltage systems.
  • Data translation and level-shifting in various digital systems.
  • Use in embedded systems, microcontrollers, and other digital logic circuits requiring voltage translation.
  • Applications in telecommunications, industrial control systems, and consumer electronics.

Q & A

  1. What is the primary function of the SN74AVC2T45DCUTG4?

    The primary function is to act as a 2-bit, dual-supply bus transceiver for asynchronous communication between two data buses, supporting universal low-voltage bidirectional translation and level-shifting.

  2. What voltage ranges does the SN74AVC2T45DCUTG4 support?

    The device supports supply voltages from 1.2V to 3.6V for both VCCA and VCCB.

  3. How does the direction-control (DIR) input work?

    The DIR input determines the direction of data transmission between the A and B ports, activating either the B-port outputs or the A-port outputs.

  4. What are the package options available for the SN74AVC2T45DCUTG4?

    The device is available in DCT (SSOP, 8 pins), DCU (VSSOP, 8 pins), YZP (DSBGA, 8 pins), and DDF (SOT-23, 8 pins) packages.

  5. What is the operating temperature range of the SN74AVC2T45DCUTG4?

    The operating temperature range is from -40°C to 85°C.

  6. What is the significance of the VCC isolation feature?

    If either VCC input is at GND, both ports are in the high-impedance state, which helps in reducing power consumption and preventing bus contention.

  7. What are some typical applications of the SN74AVC2T45DCUTG4?

    It is used in asynchronous communication between different voltage domains, data translation, and level-shifting in various digital systems, including embedded systems, microcontrollers, and other digital logic circuits.

  8. How does the device handle unused data inputs?

    All unused data inputs must be held at VCCI or GND to prevent excess leakage current on the internal CMOS structure.

  9. What are the propagation delay characteristics of the SN74AVC2T45DCUTG4?

    The propagation delay ranges from 2.2 ns to 3.4 ns depending on the supply voltages VCCA and VCCB.

  10. Is the SN74AVC2T45DCUTG4 suitable for high-speed data transfer?

    Yes, it is designed for high-speed data transfer with low propagation delays.

Product Attributes

Translator Type:Voltage Level
Channel Type:Bidirectional
Number of Circuits:1
Channels per Circuit:2
Voltage - VCCA:1.2 V ~ 3.6 V
Voltage - VCCB:1.2 V ~ 3.6 V
Input Signal:- 
Output Signal:- 
Output Type:Tri-State, Non-Inverted
Data Rate:500Mbps
Operating Temperature:-40°C ~ 85°C (TA)
Features:- 
Mounting Type:Surface Mount
Package / Case:8-VFSOP (0.091", 2.30mm Width)
Supplier Device Package:8-VSSOP
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Similar Products

Part Number SN74AVC2T45DCUTG4 SN74AVC2T45DCURG4 SN74AVC2T45DCUTE4
Manufacturer Texas Instruments Texas Instruments Texas Instruments
Product Status Discontinued at Digi-Key Discontinued at Digi-Key Discontinued at Digi-Key
Translator Type Voltage Level Voltage Level Voltage Level
Channel Type Bidirectional Bidirectional Bidirectional
Number of Circuits 1 1 1
Channels per Circuit 2 2 2
Voltage - VCCA 1.2 V ~ 3.6 V 1.2 V ~ 3.6 V 1.2 V ~ 3.6 V
Voltage - VCCB 1.2 V ~ 3.6 V 1.2 V ~ 3.6 V 1.2 V ~ 3.6 V
Input Signal - - -
Output Signal - - -
Output Type Tri-State, Non-Inverted Tri-State, Non-Inverted Tri-State, Non-Inverted
Data Rate 500Mbps 500Mbps 500Mbps
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Features - - -
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 8-VFSOP (0.091", 2.30mm Width) 8-VFSOP (0.091", 2.30mm Width) 8-VFSOP (0.091", 2.30mm Width)
Supplier Device Package 8-VSSOP 8-VSSOP 8-VSSOP

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