PI4MSD5V9543ALEX Switch ICs – Various 2 Channel I2C Bus Switch

Short Description:

Manufacturers: Diodes Incorporated
Product Category: Logic – Signal Switches, Multiplexers, Decoders
Data Sheet: PI4MSD5V9543ALEX
Description: IC BUS SWITCH 2CH 14TSSOP
RoHS status: RoHS Compliant


Product Detail

Features

Product Tags

♠ Product Description

Product Attribute Attribute Value
Manufacturer: Diodes Incorporated
Product Category: Switch ICs - Various
Product: Bus Switches
Number of Switches: 2 Switch
Configuration: 2 x SPDT
On Resistance - Max: 70 Ohms
Minimum Operating Temperature: - 40 C
Maximum Operating Temperature: + 85 C
Mounting Style: SMD/SMT
Package / Case: TSSOP-14
Packaging: Reel
Packaging: Cut Tape
Brand: Diodes Incorporated
Off Time - Max: 300 ns
On Time - Max: 300 ns
Pd - Power Dissipation: 100 mW
Product Type: Switch ICs - Various
Factory Pack Quantity: 2500
Subcategory: Switch ICs
Supply Current - Max: 100 uA
Supply Voltage - Max: 5.5 V
Supply Voltage - Min: 1.65 V
Unit Weight: 0.006102 oz

 

♠ 2 Channel I2C bus switch with interrupt logic and Reset

The PI4MSD5V9543A is a bidirectional translating switch, controlled by the I2C bus. The SCL/SDA channels. Any individual SCx/SDx channels or combination of channels can be selected, determined by contents of the programmable control register. Two upstream pair fans out to two downstream pairs, or the interrupt inputs, INT0 and INT1, one for each of the downstream pairs, are provided. One interrupt output, INT, which acts as an AND of the two interrupt inputs, is provided.

An active LOW reset input allows the PI4MSD5V9543A to recover from a situation where one of the downstream buses is stuck in a LOW state. Pulling the RESET pin LOW resets the I2C bus state machine and causes all the channels to be deselected, as does the internal power-on reset function.

The pass gates of the switches are constructed such that the VCC pin can be used to limit the maximum high voltage which will be passed by the PI4MSD5V9543A. This allows the use of different bus voltages on each SCx/SDx pair, so that 1.2V,1.8 V, 2.5 V, or 3.3 V parts can communicate with 5 V parts 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 5 V tolerant.


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  • •  1-of-2 bidirectional translating multiplexer

    •  I2C-bus interface logic

    •  Operating power supply voltage:1.65 V to 5.5 V

    •  Allows voltage level translation between 1.2V, 1.8V,2.5 V, 3.3 V and 5 V buses

    •  Low standby current

    •  Low Ron switches

    •  Channel selection via I2C bus

    •  Power-up with all multiplexer channels deselected

    •  Capacitance isolation when channel disabled

    •  No glitch on power-up

    •  Supports hot insertion

    •  5 V tolerant inputs

    •  0 Hz to 400 kHz clock frequency

    •  ESD protection exceeds 8000 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: SOIC-14W,TSSOP-14L

     

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