Device identity and board-level function
The QS3VH16233PAG is a 2 x 16:8 multiplexer/demultiplexer from Renesas Electronics' 3VH series, packaged in a 56-TSSOP (0.240", 6.10 mm width) for surface-mount assembly. It routes two independent 16-bit buses to an 8-bit bus — essentially a dual 16:8 mux that can also run the signal path in reverse as a demultiplexer. The industrial temperature grade (-40°C to 85°C) covers most factory-floor and outdoor telecom enclosures without derating.
Supply and temperature envelope
The 56-TSSOP package's thermal impedance is adequate for the sub-100 mA draw typical of a CMOS mux at these speeds.