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Details for Texas Instruments


2-Bit Dual Supply Transceiver with Configurable Voltage-Level Shifting and 3-State Outputs
Buy Directly from Texas Instruments (5753 in Stock)
$0.2700 per unit
Series Information for SN74LVC2T45DCTT - Texas Instruments


  • feature
    Available in the Texas Instruments NanoFreeu2122 Package
  • feature
    DIR Input Circuit Referenced to VCCA
  • feature
    ESD Protection Exceeds JESD 22
  • feature
    Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65-V to 5.5-V Power-Supply Range
  • feature
    Ioff Supports Partial-Power-Down Mode Operation
  • feature
    Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • feature
    Low Power Consumption, 10-u03bcA Max ICC
  • feature
    Max Data Rates u2013 420 Mbps (3.3-V to 5-V Translation) u2013 210 Mbps (Translate to 3.3 V) u2013 140 Mbps (Translate to 2.5 V) u2013 75 Mbps (Translate to 1.8 V)
  • feature
    VCC Isolation Feature u2013 If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State
  • feature
    u00b124-mA Output Drive at 3.3 V


This dual-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. The SN74LVC2T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input activate either the B-port outputs or the A-port outputs. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ. The SN74LVC2T45 is designed so that the DIR input circuit is supplied by VCCA. This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature ensures that if either VCC input is at GND, both ports are in the high-impedance state. NanoFree™ package technology is a major breakthrough in IC packaging concepts, using the die as the package.


Logic Family / Base Number:
Logic Device Type:
Transceiver Non Inverting
Logic Case Style:
No. of Pins:
Supply Voltage Min:
Supply Voltage Max:
Logic IC Family:
Logic IC Base Number:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 1 - Unlimited
No SVHC (27-Jun-2018)
Base Number:
Data Rate:
Line Bus Drive Receive Transceiver Type:
Bus Transceiver
Logic Function Number:
Logic IC Function:
Dual bit Dual Supply Bus Transceiver
No. of Transceivers:
Operating Temperature Range:
-40°C to +85°C
Supply Voltage Range:
1.65V to 5.5V
Termination Type:
Surface Mount Device

Alternate Descriptions

Avnet America

Bus XCVR Single 2-CH 3-ST 8-Pin SSOP T/R

Avnet Europe

Bus XCVR Single 2-CH 3-ST 8-Pin SSOP T/R

Texas Instruments

2-Bit Dual Supply Transceiver with Configurable Voltage-Level Shifting and 3-State Outputs

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