Features and benefits

 2-to-1 bidirectional master selector

 Channel selection via I2C-bus

 I2C-bus interface logic; compatible with SMBus standards

 2 active LOW interrupt outputs to master controllers

 Active LOW reset input

 Software reset

 Four address pins allowing up to 112 different addresses

 Arbitration active when two masters try to take the downstream I2C-bus at the same

time

 The winning master controls the downstream bus until it is done, as long as it is within

the reserve time

 Bus time-out after 100 ms on an inactive downstream I2C-bus (optional)

 Readable device ID (manufacturer, device type, and revision)

 Bus initialization/recovery function

 Low Ron switches

 Allows voltage level translation between 1.8 V, 2.3 V, 2.5 V, 3.3 V and 3.6 V buses

 No glitch on power-up

 Supports hot insertion

 Software identical for both masters

 Operating power supply voltage range of 2.3 V to 3.6 V

 All I/O pins are 3.6 V tolerant

 Up to 1 MHz clock frequency

 ESD protection exceeds 6000 V HBM per JESD22-A114 and 1000 V CDM per

JESD22-C101

 Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA

 Packages offered: TSSOP16, HVQFN16

Applications

 High reliability systems with dual masters

 Gatekeeper multiplexer on long single bus

 Bus initialization/recovery for slave devices without hardware reset

 Allows masters without arbitration logic to share resources