This single-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74AVC1T45 is optimized to operate with VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. 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 SN74AVC1T45 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 SN74AVC1T45 is designed so that the DIR input is powered 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, then 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.
● Available in the Texas Instruments NanoFree Package
● Fully Configurable Dual-Rail Design Allows Each Port to
●Operate Over the Full 1.2-V to 3.6-V Power-Supply Range
● VCC Isolation Feature - If Either VCC
●Input Is At GND, Both Ports Are In The High-Impedance State
● DIR Input Circuit Referenced to VCCA
● ±12-mA Output Drive at 3.3 V
● I/Os Are 4.6-V Tolerant
● Ioff Supports Partial-Power-Down Mode Operation
● Typical Max Data Rates
● 500 Mbps (1.8-V to 3.3-V Translation)
● 320 Mbps (<1.8-V to 3.3-V Translation)
● 320 Mbps (Translate to 2.5 V or 1.8 V)
● 280 Mbps (Translate to 1.5 V)
● 240 Mbps (Translate to 1.2 V)
● Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
● ESD Protection Exceeds JESD 22
● ±2000-V Human Body Model (A114-A)
● 200-V Machine Model (A115-A)
● ±1000-V Charged-Device Model (C101)
