Members of the Texas Instruments

WidebusE Family

A-Port Outputs Have Equivalent 25-W

Series Resistors, So No External Resistors

Are Required

State-of-the-Art EPIC-IIBE BiCMOS Design

Significantly Reduces Power Dissipation

Typical VOLP (Output Ground Bounce)

< 1 V at VCC = 5 V, TA = 25°C

Distributed VCC and GND Pin Configuration

Minimizes High-Speed Switching Noise

Flow-Through Architecture Optimizes PCB

Layout

Bus Hold on Data Inputs Eliminates the

Need for External Pullup/Pulldown

Resistors

Latch-Up Performance Exceeds 500 mA Per

JESD 17

ESD Protection Exceeds 2000 V Per

MIL-STD-833, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

Package Options Include Plastic Thin

Shrink Small-Outline (DGG), Thin Very

Small-Outline (DGV), and Shrink

Small-Outline (DL) Packages and 380-mil

Fine-Pitch Ceramic Flat (WD) Package

Using 25-mil Center-to-Center Spacings

description

The ’ABTH162245 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 are effectively

isolated.

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

to reduce overshoot and undershoot.

Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

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.

The SN54ABTH162245 is characterized for operation over the full military temperature range of –55°C to

125°C. The SN74ABTH162245 is characterized for operation from –40°C to 85°C.