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Dual-Bit, 2-DIR pin Dual-Supply Bus Transceiver w/ Configurable Voltage Translation, 3-State Output
Buy Directly from Texas Instruments (75021 in Stock)
$0.2000 per unit
Series Information for SN74AVC2T245RSWR - Texas Instruments


  • feature
    Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
  • feature
    ESD Protection Exceeds JESD 22
  • feature
    Each Channel Has Independent Direction Control
  • feature
    Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.2 V to 3.6 V Power-Supply Range
  • feature
    I/Os Are 4.6 V Tolerant
  • feature
    Ioff Supports Partial-Power-Down Mode Operation
  • feature
    Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • feature
    Typical Data Rates u2013 500 Mbps (1.8 V to 3.3 V Level-Shifting) u2013 320 Mbps (<1.8 V to 3.3 V Level-Shifting) u2013 320 Mbps (Translate to 2.5 V or 1.8 V) u2013 280 Mbps (Translate to 1.5 V) u2013 240 Mbps (Translate to 1.2 V)
  • feature
    VCC Isolation Feature - If Either VCC Input is at GND, Both Ports are in High-Impedance State


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 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation between any of the 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V voltage nodes. The SN74AVC2T245 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode . 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 SN74AVC2T245 control pins (DIR1, DIR2, and OE) are 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. To ensure the high-impedance state during power up or power down, OE must be connected to VCC through a pull-up resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.


No. of Inputs:
Output Current:
Propagation Delay:
No. of Pins:
Logic Case Style:
Supply Voltage Min:
Supply Voltage Max:
Operating Temperature Min:
Operating Temperature Max:
Logic Type:
Transceiver Non Inverting
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
MSL 1 - Unlimited
No SVHC (27-Jun-2018)
Logic Function Number:
Operating Temperature Range:
-40°C to +85°C
Supply Voltage Range:
1.2V to 3.6V

Alternate Descriptions

Avnet America

Voltage Level Translator 10-Pin UQFN T/R

Avnet Europe

Voltage Level Translator 10-Pin UQFN T/R

Texas Instruments

Dual-Bit, 2-DIR pin Dual-Supply Bus Transceiver w/ Configurable Voltage Translation, 3-State Output

Texas Instruments product