TMUXS1306A

The TMUXS1306A and TMUXS1307A are general purpose complementary metal-oxide semiconductor (CMOS) multiplexers (MUX). The TMUXS1306A is an 16:1, 1-channel (single-ended) mux, while the TMUXS1307A is a 8:1, 2-channel (differential) mux. The devices support bidirectional analog and digital signals on the source (Sx) and drain (Dx) pins ranging from GND to VDD.

The TMUXS130xA devices have an internal injection current control feature, which eliminates the need for external diode and resistor networks typically used to protect the switch and keep the input signals within the supply voltage. The internal injection current control circuitry allows signals on disabled or enabled signal paths to exceed the supply voltage. Disabled channels with voltages above VDD are prevented from affecting the signal of the enabled signal path. Additionally, the TMUXS130xA devices do not have an internal diode path to the supply pin, which eliminates the risk of damaging components connected to the supply pin or providing unintended power to the supply rail.

The switches of TMUXS130xA are controlled with a serial peripheral interface (SPI). The SPI has many error detection features, such as CRC, invalid read/write, and clock count error detection. The SPI also supports auto cycle (AC) mode (control MUX with a single GPIO), daisy chain mode, and burst mode.