SN74AVC2T45 Dual-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs | TI.com

SN74AVC2T45 (ACTIVE) Dual-Bit Dual-Supply Bus Transceiver with Configurable Voltage Translation and 3-State Outputs

 

Description

This 2-bit non-inverting bus transceiver uses two separate configurable power-supply rails. The A ports are designed to track VCCA and accepts any supply voltage from 1.2 V to 3.6 V. The B ports are designed to track VCCB and accepts any supply voltage from 1.2 V to 3.6 V. This allows for universal low-voltage bidirectional translation and level-shifting between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.

The SN74AVC2T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR pin) 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 leakage current on the internal CMOS structure.

Features

  • Available in the Texas Instruments NanoFree™ Package
  • VCC Isolation Feature: If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State
  • Dual Supply Rail Design
  • I/Os Are 4.6-V Over Voltage Tolerant
  • Ioff Supports Partial-Power-Down Mode Operation
  • Max Data Rates
    • 500 Mbps (1.8 V to 3.3 V)
    • 320 Mbps (<1.8 V to 3.3 V )
    • 320 Mbps (Level-Shifting to 2.5 V or 1.8 V)
    • 280 Mbps (Level-Shifting to 1.5 V)
    • 240 Mbps (Level-Shifting to 1.2 V)
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22

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Parametrics

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Part number Order Technology Family Application Bits (#) High input voltage (Min) (Vih) High input voltage (Max) (Vih) Output voltage (Min) (V) Output voltage (Max) (V) IOH (Max) (mA) IOL (Max) (mA) Package Group Rating
SN74AVC2T45 Order now AVC     I2S     2     0.78     3.6     1.2     3.6     -12     12     DSBGA | 8
SM8 | 8
VSSOP | 8    
Catalog    
SN74AVC2T244 Order now AVC       2     0.81     3.6     0.9     3.6     -24     24     X2SON | 8
X2SON | 8    
Catalog    
SN74AVC2T245 Order now AVC     JTAG     2     0.78     3.6     1.2     3.6     -12     12     UQFN | 10     Catalog    
SN74AVC2T45-Q1 Order now AVC     GPIO
I2S    
2     0.78     3.6     1.2     3.6     -12     12     VSSOP | 8     Automotive    
SN74AVCH2T45 Order now AVC     GPIO
I2S    
2     0.8     3.6     1.2     3.6     -12     12     DSBGA | 8
SM8 | 8
VSSOP | 8    
Catalog    
SN74AXC1T45 Order now AXC     GPIO     1     0.455     3.6     0.65     3.6     -12     12     SC70 | 6
SOT-23 | 6
SOT-5X3 | 6
X2SON | 6
X2SON | 6    
Catalog    
SN74AXC2T45 Order now AXC     UART     2