NXP PCA984x Ultra-Low Voltage Switches and Multiplexers with Reset have low operation down to 0.8V to interface with next-generation CPUs. The Switches and Multiplexers have 1-of-4 or 1-of-8 bidirectional translating. These devices have an active LOW reset input. Select any or all SCx/SDx channels, determined by the programmable control register. This feature allows multiple devices with the same I2C-bus address to reside on the same bus. The switch or multiplexer device eliminates the need for a bus buffer by separating a heavily loaded I2C-bus into separate bus segments.
Feature
- Ultra-low voltage operation, down to 0.8 V to interface with next-generation CPUs
- 1-of-8 bidirectional translating multiplexer
- Fm+ I²C-bus interface logic; compatible with SMBus standards
- Active LOW reset input
- 2 address pins allowing up to 16 devices on the I²C-bus
- Channel selection via I²C-bus
- Power-up with all multiplexer channels deselected
- Low Ron 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 perJESD22-C101
- Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
- Two packages offered: TSSOP24 and HVQFN24
