PCA9849PW 4-Channel Multiplexer

Product Highlights > PCA9849PW 4-Channel Multiplexer

            PCA9849PW 4-Channel Multiplexer
                    NXP offers its PCA9849PW 4-channel ultra-low-voltage, Fm+ I²C bus multiplexer with reset 
    

Image of NXP's PCA9849PW 4-Channel Multiplexer NXP's PCA9849 is an ultra-low-voltage, quad bidirectional translating multiplexer controlled via the I^²C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. A single SCx/SDx channel can be selected, determined by the programmable control register. This feature allows multiple devices with the same I^²C bus address to reside on the same bus. The multiplexer device can also separate a heavily loaded I²C bus into separate bus segments, eliminating the need for a bus buffer.

Features and Benefits
Ultra-low-voltage operation, down to 0.8 V to interface with next-generation CPUs One-of-four bidirectional translating multiplexer Fast-mode Plus (Fm+) I²C bus interface logic; compatible with SMBus standards Active LOW reset input Two address pins allowing up to 16 devices on the I²C bus Channel selection via I²C bus Power-up with all switch channels deselected Low R_ON switches Allows voltage level translation between 0.8 V, 1.8 V, 2.5 V, and 3.3 V buses Reset via I²C bus software command		I²C Device ID function No glitch on power-up Supports hot insertion since all channels are de-selected at power-on Low standby current 3.6 V tolerant inputs 0 Hz 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 Package offered: TSSOP16
Applications
Computing: I²C bus isolation in larger server platforms Industrial: enabling multiple slaves with the same I²C address		Commercial: obscuring I²C slaves for direct detection Automotive: protecting sensitive I²C master devices from overstress damage