Members of the Texas Instruments

WidebusE Family

Inputs are TTL-Voltage Compatible

Flow-Through Architecture Optimizes

PCB Layout

Distributed VCC and GND Pin Configuration

Minimizes High-Speed Switching Noise

EPICE (Enhanced-Performance Implanted

CMOS) 1-mm Process

Package Options Include Plastic 300-mil

Shrink Small-Outline (DL) Packages Using

25-mil Center-to-Center Pin Spacings and

380-mil Fine-Pitch Ceramic Flat (WD)

Packages Using 25-mil Center-to-Center

Pin Spacings

description

The ’ACT16623 are 16-bit transceivers designed

for asynchronous two-way communication between

data buses. The control-function implementation

allows for maximum flexibility in timing.

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 output-enable (OEBA and OEAB)

inputs. The output-enable inputs can be used to

disable the device so that the buses are effectively

isolated.

The dual-enable configuration gives the bus transceiver the capability to store data by simultaneously enabling

OEBA and OEAB. Each output reinforces its input in this transceiver configuration. When both control inputs

are enabled and all other data sources to the two sets of bus lines are at high impedance, the bus lines remain

at their last states.

The 74ACT16623 is packaged in TI’s shrink small-outline package, which provides twice the functionality of

standard small-outline packages in the same printed-circuit-board area.

The 54ACT16623 is characterized for operation over the full military temperature range of –55°C to 125°C. The

74ACT16623 is characterized for operation from –40°C to 85°C.