Member of the Texas Instruments

Widebus? Family

Optimized for 1.8-V Operation and is 3.6-V

I/O Tolerant to Support Mixed-Mode Signal

Operation

Ioff Supports Partial-Power-Down Mode

Operation

Sub 1-V Operable

Max tpd of 2 ns at 1.8 V

Low Power Consumption, 20-μA Max ICC

±8-mA Output Drive at 1.8 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)

description/ordering information

This 16-bit (dual-octal) noninverting bus

transceiver is operational at 0.8-V to 2.7-V VCC,

but is designed specifically for 1.65-V to 1.95-V

VCC operation.

The SN74AUC16245 is designed for

asynchronous communication between data

buses. The control-function implementation

minimizes external timing requirements.

This device can be used as two 8-bit transceivers or one 16-bit transceiver. It allows data transmission from the

A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR)

input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup

resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

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.