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PCA9545

Features: FEATURES1-of-4 bi-directional translating switchesI2 C interface logic; compatible with SMBus standards4 active low interrupt inputsActive low interrupt outputActive low reset input2 address pins allowing up to 4 devices on the I 2C busChannel selection via I2 C bus, in any combinationPo...

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SeekIC No. : 004456302 Detail

PCA9545: Features: FEATURES1-of-4 bi-directional translating switchesI2 C interface logic; compatible with SMBus standards4 active low interrupt inputsActive low interrupt outputActive low reset input2 addre...

PCA9545 Data Sheet

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Part Number:
PCA9545
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
I2 C interface logic; compatible with SMBus standards
4 active low interrupt inputs
Active low interrupt output
Active low reset input
2 address pins allowing up to 4 devices on the I 2C bus
Channel selection via I2 C bus, in any combination
Power up with all switch channels deselected
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 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
Latch-up testing is done to JESDEC Standard JESD78 which
exceeds 100 mA
Package Offer: SO20, TSSOP20


Pinout

Connection Diagram

 

Connection Diagram




Specifications

symbol partameter conditions RATING unit
MIN MAX
VDD DC supply voltage   -0.5  +7.0  V
VI DC input voltage    -0.5  +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  +150  °C
Tamb Operating ambient temperature    -40  +85  °C



Description

     The PCA9545 is a quad bi-directional translating switch controlledvia the I2C bus. The SCL/SDA upstream pair fans out to four downstream pairs, or channels. Any individual SCx/SDx channel or combinat ion of channels of PCA9545 can be selected, determined by the contents of the programmable control register. Four interrupt inputs,INT0  to INT3, one for each of the downstream pairs, are provided. One interrupt output, INT, , acts as an AND of the four interrupt
inputs.




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