16-bit latched transceiver for 5V bus systems
The IDT74FCT16543TPA is a 16-bit non-inverting transceiver with 3-state outputs, built in the FAST FCT logic family. It integrates two 8-bit elements, each with its own latch-enable and output-enable controls, for bidirectional data flow between two 8-bit buses.
Output drive and temperature range
The transceiver can source 32mA and sink 64mA per output, providing enough drive for heavily loaded parallel buses without external buffers.
Package and footprint considerations
Housed in a 56-TFSOP package (0.240", 6.10mm width) with surface-mount termination, the part requires a fine-pitch PCB footprint and careful solder-paste stencil design.
Lifecycle and compliance
Note that the part is marked as RoHS non-compliant, which may restrict its use in jurisdictions requiring RoHS conformance — check your local exemption or plan for a compliant alternative if needed.