Members of the Texas Instruments

WidebusE Family

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

Significantly Reduces Power Dissipation

Latch-Up Performance Exceeds 500 mA Per

JEDEC Standard JESD-17

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

High-Drive Outputs (–32-mA IOH,

64-mA IOL)

Package Options Include Plastic 300-mil

Shrink Small-Outline (DL) and Thin Shrink

Small-Outline (DGG) Packages, and 380-mil

Fine-Pitch Ceramic Flat (WD) Package

Using 25-mil Center-to-Center Spacings

description

The ’ABT16640 are inverting 16-bit transceivers

designed for asynchronous communication

between data buses.

These devices 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 (1DIR and 2DIR)

inputs. The output-enable (1OE and 2OE) inputs

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.

The SN54ABT16640 is characterized for operation over the full military temperature range of –55°C to 125°C.

The SN74ABT16640 is characterized for operation from –40°C to 85°C.