Active production and BOM-fit for a 4-channel bus switch
The SN74CB3Q3125PWR: Each of the four independent circuits provides a 1:1 pass-gate connection, effectively shorting the bus when the enable pin is asserted.
14-TSSOP package and layout considerations
Housed in a 14-TSSOP (4.40 mm width) with a 0.65 mm pitch, the SN74CB3Q3125PWR is a straightforward two-layer board part. The narrow body keeps the signal path short, which helps maintain signal integrity at the switch's bandwidth ceiling. The 14-TSSOP footprint is common across the 74CB family, so a single PCB layout can accommodate multiple TI bus switch variants if a second-source or alternate function is needed later. Pin 1 is clearly marked by the chamfer on the package body.
Industrial temperature range and deployment envelope
The junction temperature stays within the silicon limits as long as the ambient stays under 85°C.