9.2.1.2 Detailed Design Procedure

The TMUX1511 can be operated without any external components except for the supply decoupling capacitors. The device has internal weak pull-down resistors (6 MΩ) to GND so that it powers-on with the switches disabled. All inputs signals passing through the switch must fall within the recommend operating conditions of the TMUX1511 including signal range and continuous current. For this design example, with a supply of 3.3 V, the signals can range from 0 V to 3.3 V when the device is powered. This example can also utilize the feature and the inputs can range from 0 V to 3.3 V when V_DD = 0 V. The max continuous current can be 25 mA. Due to the voltage range and high speed capability, the TMUX1511example is suitable for use in JTAG and SPI applications beyond the 100 MHz maximum in a typical application.