TCA9539 Q1 Automotive Low Voltage 16 Bit I2C and SMBus Low Power I/O Expander with Interrupt Output
FEATURES
 AEC-Q100 Qualified for Automotive Applications
  Device Temperature Grade 1
  TA = -40℃ to +125℃
 1.65V to 5.5V Input Voltage Range
 Parallel I2C I/O Expander
 5V Tolerant Input and Output Ports
 Active Low Reset Input
 Active Low Interrupt Output
 Support 400kHz I2C Fast Mode
 Internal Power-on Reset
 No Glitch on Power-up
 Polarity Inversion Register
 Compatible with Most Processors
 Select Device Address by Two Pins (up to Four
  Devices)
 Latched Outputs Drive LEDs Directly
 Latch-up Performance (>100mA) to Meet JESD
  78 Class II Standard
• -40℃ to +125 Operating Temperature Range

 Available in a Green TSSOP-24 Package



PIN CONFIGUTION
CROSS
TCA9539-Q1 TCA9539-Q1.pdf

No.13826

FEATURES

• AEC-Q100 (Grade 1): Qualified for 

  automotive applications

• Functional Safety-Capable

  Documentation available to aid in 

  functional safety system design

• I2C to parallel port expander

• Open-drain active-low interrupt output

• Active-low reset input

• 5 V tolerant input and output ports

• Compatible with most microcontrollers

• 400 kHz Fast I2C bus

• Polarity inversion register

• Internal power-on reset

• No glitch on power up

• Address by two hardware address 

  pins for use of up to four devices

• Latched outputs for directly driving LEDs

• Latch-up performance exceeds 100 

  mA Per JESD 78, class II

• ESD protection exceeds JESD 22

  2000-V Human-body model (A114-A)

  1000-V Charged-device model (C101)

PIN CONFIGUTION
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