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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