Product Descriptions

This  4-bit  noninverting  bus  transceiver  uses  two  separate  configurable  power-supply  rails.  The  A  port  isdesigned to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to trackVCCB. VCCB accepts any supply voltage from 1.2 V to 3.6 V. 

The SN74AVC4T245 is optimized to operate withVCCA/VCCB set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. This allows for universallow-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 SN74AVC4T245 is designed for asynchronous communication between data buses. The device transmitsdata  from  the  A  bus  to  the  B  bus  or  from  the  B  bus  to  the  A  bus,  depending  on  the  logic  level  at  thedirection-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses areeffectively isolated.

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

Product Features

Control Inputs VIH/VIL Levels areReferenced to VCCA Voltage

Fully Configurable Dual-Rail Design AllowsEach Port to Operate Over the Full 1.2-V to3.6-V Power-Supply Range

I/Os Are 4.6-V Tolerant

Ioff Supports Partial-Power-Down ModeOperation

Latch-Up Performance Exceeds 100 mA PerJESD 78, Class II

ESD Protection Exceeds JESD 22

−  8000-V Human-Body Model (A114-A)

−  150-V Machine Model (A115-A)

−  1000-V Charged-Device Model (C101)

  Specifications

Actual product photos

Product Data Book：

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