74ABT162245DGGRG4.B中文资料德州仪器数据手册PDF规格书

Members of the Texas Instruments

Widebus Family

A-Port Outputs Have Equivalent 25-Ω

Series Resistors, So No External Resistors

Are Required

Typical VOLP (Output Ground Bounce)

<1 V at VCC = 5 V, TA = 25°C

Distributed VCC and GND Pins Minimize

High-Speed Switching Noise

Ioff Supports Partial-Power-Down Mode

Operation

Flow-Through Architecture Optimizes PCB

Layout

Latch-Up Performance Exceeds 500 mA Per

JESD 17

ESD Protection Exceeds JESD 22

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

description/ordering information

The ’ABT162245 devices are 16-bit noninverting

3-state transceivers designed for synchronous

two-way communication between data buses.

The control-function implementation minimizes

external timing requirements.

These devices can be used as two 8-bit

transceivers or one 16-bit transceiver. They allow

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 effectively are isolated.

The A-port outputs, which are designed to source or sink up to 12 mA, include equivalent 25-Ω series resistors

to reduce overshoot and undershoot.

These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the

outputs, preventing damaging current backflow through the devices when they are powered down.