2-1 I2C-Bus Controller Selector with Interrupt Logic and Reset | NXP Semiconductors

2-1 I2C-Bus Controller Selector with Interrupt Logic and Reset

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Product Details

Block Diagram

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PCA9541A

PCA9541A Block Diagram

PCA9541ABS, PCA9541AD, PCA9541APW

Features

Key Features

  • 2-to-1 bidirectional controller selector
  • I²C-bus interface logic; compatible with SMBus standards
  • PCA9541A/01 powers up with Channel 0 selected
  • PCA9541A/03 powers up with no channel selected and either controller can take control of the bus
  • Active LOW interrupt input
  • 2 active LOW interrupt outputs
  • Active LOW reset input
  • 4 address pins allowing up to 16 devices on the I²C-bus
  • Channel selection via I²C-bus
  • Bus initialization/recovery function
  • Bus traffic sensor
  • Low Ron switches
  • 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
  • Software identical for both controllers
  • Low standby current
  • Operating power supply voltage range of 2.3 V to 5.5 V
  • 6.0 V tolerant inputs
  • 0 Hz to 400 kHz clock frequency
  • ESD protection exceeds 2000 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: SO16, TSSOP16, HVQFN16
  • High reliability systems with dual controllers
  • Gatekeeper multiplexer on long single bus
  • Bus initialization/recovery for target devices without hardware reset
  • Allows controllers without arbitration logic to share resources

Buy/Parametrics

2 results

Include 1 NRND

Order

CAD Model

Budgetary Price excluding tax

Status

Package Type

Channel Selection

Interrupt

Reset input pin

Inputs

Outputs

Supply Voltage [Min to Max] (V)

Frequency (Max) (MHz)

# of Addresses

Operating Temperature (Min-Max) (℃)

1K @ US$0.99

Active

HVQFN16

FET channel selection

Y

Y

2

1

2.3 to 5.5

0.4

16

-40 to 85

1K @ US$0.98 - 1K @ US$0.99

Active

TSSOP16

FET channel selection

Y

Y

2

1

2.3 to 5.5

0.4

16

-40 to 85

Documentation

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9 documents

Compact List

Data Sheet (1)
Fact Sheet (1)
Package Information (2)
Packing Information (2)
Supporting Information (2)
User Guide (1)

Design Resources

Design Files

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1-5of 7 design files

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