1 Features

• AEC-Q100 Qualified for Automotive Applications

– Device Temperature Grade 1: –40°C to 125°C

Ambient Operating Temperature

– Device HBM Classification Level H1C

– Device CDM Classification Level C3

• Rail to rail operation

• Bidirectional signal path

• 1.8V Logic compatible

• Fail-safe logic

• Low on-resistance: 3Ω

• Wide supply range: 1.08V to 5.5V

• -40°C to +125°C Operating temperature

• Low supply current: 4nA

• Transition time: 14ns

• Break-before-make switching

• ESD protection HBM: 2000V

2 Applications

• Analog and Digital Switching

• I2C and SPI bus Multiplexing

• Advanced driver assistance systems (ADAS)

• Body electronics and lighting

• Infotainment and cluster

• Zone architecture

• Body control modules

• Battery management systems

• Telematics

• Automotive head unit

3 Description

The TMUX1219-Q1 is a general purpose

complementary metal-oxide semiconductor (CMOS)

single-pole double-throw (SPDT) switch. The

TMUX1219-Q1 switches between two source inputs

based on the state of the SEL pin. Wide operating

supply of 1.08V to 5.5V allows for use in a wide

array of automotive applications. The device supports

bidirectional analog and digital signals on the source

Sx) and drain (D) pins ranging from GND to VDD.

A low supply current of 4nA enables use in portable

applications.

All logic inputs have 1.8V logic compatible thresholds,

ensuring both TTL and CMOS logic compatibility

when operating in the valid supply voltage range. Fail-

Safe Logic circuitry allows voltages on the control pins

to be applied before the supply pin, protecting the

device from potential damage.