The ´BCT623 bus transceiver is designed for asynchronous
communication between data buses. The control function implementation
allows for maximum flexibility in timing. The ´BCT623 provides
true data at its outputs.
This device allows data transmission from the A bus to the B bus
or from the B bus to the A bus depending upon the logic levels at the
output-enable (OEAB and )
The output-enable inputs can be used to disable the device so that
the buses are effectively isolated. The dual-enable configuration
gives the transceivers the capability of storing data by
simultaneously enabling OEAB and . Each output reinforces its input in this
configuration. When both OEAB and are enabled and all other data sources to the two sets
of bus lines are at high impedance, both sets of bus lines (16 in
all) will remain at their last states.
The SN54BCT623 is characterized for operation over the full
military temperature range of -55°C to 125°C. The
SN74BCT623 is characterized for operation from 0°C to 70°C.