PCA9846PWJ - NXP

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

PCA9846PWJ
Manufacturer

NXP
ChipWorker Part#

CW53295688
Category

Logic Controller, Logic IC
Package

TSSOP-16
Description

PCA9846 - 4Channel ultra-low voltage, Fm+ I²C-bus switch with reset TSSOP 16Pin
Documentation

Datasheet

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PCA9846PWJ Specifications

Attribute	Attribute Value

Part Number	PCA9846PWJ
Manufacturer	NXP
ChipWorker Part#	CW53295688
Category	Logic Controller, Logic IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	TSSOP-16
Number of Circuits	2 Circuit
Number of Positions	16 Position
Power Dissipation	400 mW
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	400 mW
Supply Voltage (Max)	3.6 V
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Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Unknown
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

Overview
The PCA9846 is an ultra-low voltage, quad bidirectional translating switch controlled via the I²C-bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any or all SCx/SDx channels can be selected, 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 device can also separate a heavily loaded I²C-bus into separate bus segments, eliminating the need for a bus buffer.
An active LOW reset input allows the PCA9846 to recover from a situation where one of the downstream I²C-buses is stuck in a LOW state. Pulling the RESET pin LOW resets the I²C-bus state machine and deselects all the channels, as does the internal Power-On Reset (POR) function.
The pass gates of the switches are constructed such that the VDD1 pin is used to limit the maximum high voltage which is passed by the PCA9846. This allows the use of different bus voltages on each channel, so that 0.8 V, 1.8 V, 2.5 V or 3.3 V parts can communicate without any additional protection. External pull-up resistors pull the bus up to the desired voltage level for each channel. All I/O pins are 3.6 V tolerant.
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## Features
* Ultra-low voltage operation, down to 0.8 V to interface with next-generation CPUs
* 1-of-4 bidirectional translating switch
* Fm+ I²C-bus interface logic; compatible with SMBus standards
* 2 address pins allowing up to 16 devices on the I²C-bus
* Channel selection via I²C-bus
* Power-up with all switch 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 per JESD22-C101
* Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
* Two packages offered: TSSOP16 and HVQFN16
## Features
* Two packages offered: TSSOP16 and HVQFN16

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