Hot-selling and scarce SN74AVC4T245PWR Dual-Bit Bus Transceiver IC TSSOP16 spot stock

Product Descriptions

This  4-bit  noninverting  bus  transceiver  uses  two separate configurable power-supply rails. The A port is designed to track V CCA. V CCA  accepts any supply voltage from 1.2V to 3.6V. The B port is designed to track VCCB. VCCB accepts any supply voltage from1.2V  to   3.6V.  The   SN74AVC4T245   is   optimized to  operate  with  V CCA/VCCB   set  at   1.4V  to  3.6V. It  is  operational  with  V CCA/VCCB   as  low  as  1.2V. This  allows  for  universal  low-voltage  bidirectional translation between any of the 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V voltage nodes.

The    SN74AVC4T245    device    is    designed    for asynchronous   communication   between   two   data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input 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 is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ. 

The SN74AVC4T245 device is designed so that V CCA supplies the control pins (1DIR, 2DIR,  1 OE, and 2 OE).

This device  is fully specified for  partial-power-down applications   using   _I off.   The   _I off    circuitry   disables the  outputs,  preventing  damaging  current  backflow through the device when it is powered down.

The _V CC  isolation feature is designed so that if either V CC  input is at GND, then both ports are in the highimpedance state.

To put the device in the high-impedance state during power up or power down, tie OE to _V CC  through apullup  resistor;  the  current-sinking  capability  of  the driver determines the minimum value of the resistor.

Product Features

•    Control inputs VIH/VIL levels are referenced to VCCA voltage

•    Fully configurable dual-rail design allows each port to operate over the full 1.2V to 3.6V power-supply range

•    I/Os Are 4.6V tolerant

•    I off supports partial power-down-mode operation

•    Maximum data rates:

–   380Mbps (1 .8V to 3 .3V translation)

–   200Mbps (< 1.8V to 3 .3V translation)

–   200Mbps (translate to 2.5V or 1.8V)

–   150Mbps (translate to 1.5V)

–   100Mbps (translate to 1.2V)

•    Latch-up performance exceeds 100mA per JESD 78, Class II

•    ESD protection exceeds JESD 22:

–   8000V Human-Body Model (A114-A)

–   150V Machine Model (A115-A)

–   1000V Charged-Device Model (C101)

Product Applications

•    Personal electronics

•    Industrial

•    Enterprise

•   Telecom

Product Specifications

Product Photos

For more product information, please download the PDF

WhenCE is HIGH (deselected),the device assumes a standby mode at which the power dissipation can be reduced down to250 µW (typical) with CMOS input levels.