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PCA9546

Features: FEATURES1-of-4 bi-directional translating switchesI 2C interface logic; compatible with SMBus standardsActive LOW Reset Input3 address pins allowing up to 8 devices on the I2C-busChannel selection via I2 C-bus, in any combinationPower¤Cup with all switch channels deselecteLow Rds switche...

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SeekIC No. : 004456303 Detail

PCA9546: Features: FEATURES1-of-4 bi-directional translating switchesI 2C interface logic; compatible with SMBus standardsActive LOW Reset Input3 address pins allowing up to 8 devices on the I2C-busChannel s...

PCA9546 Data Sheet

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Part Number:
PCA9546
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

FEATURES
1-of-4 bi-directional translating switches
I 2C interface logic; compatible with SMBus standards
Active LOW Reset Input
3 address pins allowing up to 8 devices on the I2C-bus
Channel selection via I2 C-bus, in any combination
Power¤Cup with all switch channels deselecte
Low Rds switches ON
Allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses
No glitch on power-up
Supports hot insertion
Low stand-by current
Operating power supply voltage range of 2.3 V to 5.5 V
5 V tolerant Inputs
0 kHz to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114,
150 V MM per JESD22-A115 and 1000 V per JESD22-C101
Latchup testing is done to JESDEC Standard JESD78 which exceeds 100 mA
Packages offered: SO16, TSSOP16


Pinout

Connection Diagram


Specifications

symbol partameter conditions RATING unit
VDD DC supply voltage   -0.5to +7.0   V
VI DC input voltage    -0.5 to+7.0  V
Ii DC input current   ±20  MA
IO DC output current   ±25  MA
I DC DC Supply current   ±100  MA
ISS DC Supply current   ±100  MA
Ptot total power dissipation   400  MW
Tstg Storage temperature range   -60 to+150  °C
Tamb Operating ambient temperature   -40 to +8  °C



Description

    The PCA9546 is a quad bi-directional translating switch controlled by the I2C-bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels.
 
   Any individual SCx/SDx channel of PCA9546 or combination of channels can be selected, determined by the contents of the programmable Control Register. An active-LOW reset input allows the PCA9546 to recover from a situation where one of the downstream I2C-buses is stuck in a LOW pin LOW resets the I 2C state machine and state. Pulling the RESET causes all the channels to be deselected as does the internal power on reset function.




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