16-bit bus transceiver for mixed-voltage backplanes
The Texas Instruments SN74LVCH16245ADGGR is a 16-bit non-inverting bus transceiver from the 74LVCH family, organized as two 8-bit elements with independent direction and output-enable controls. It handles bidirectional data flow between buses operating at different voltage levels, from 1.65 V up to 3.6 V, making it a natural fit for systems where a 3.3 V controller talks to a 1.8 V peripheral or where a legacy 2.5 V bus meets a 3.3 V FPGA bank. Each output can source or sink 24 mA, enough to drive a heavily loaded backplane trace or a bank of address lines without external buffers. The 3-state outputs let multiple drivers share the same bus without contention. The 48-TSSOP package (6.10 mm body width) is a common footprint for 16-bit bus switches and transceivers, and the surface-mount format suits automated assembly lines.
Supply range and temperature grade
Rated from 1.65 V to 3.6 V, this part covers the three most common logic supply rails — 1.8 V, 2.5 V, and 3.3 V — without needing a separate level translator. The wide operating temperature range of -40°C to 125°C qualifies it for industrial motor drives, outdoor telecom cabinets, and under-hood automotive modules where the ambient can spike. The 3.3 V compatibility question comes up often: yes, the SN74LVCH16245ADGGR is fully specified at 3.3 V and meets the VIH/VIL thresholds for 3.3 V CMOS and LVTTL logic families.
Lifecycle and sourcing
TI lists the SN74LVCH16245ADGGR as Active with ROHS3 compliance.