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PCA9538DBR

8-bit 2.3- to 5.5-V I2C/SMBus I/O expander with interrupt, reset & config registers

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PCA9538DBR General Description

I/O Expander 8 I²C, SMBus 400 kHz 16-SSOP

Texas Instruments, Inc Inventory

Key Features

  • Low standby current consumption of 1 µA max
  • I2C to parallel port expander
  • Open-drain active-low interrupt output
  • Active-low reset input
  • Operating power-supply voltage range of 2.3 V to 5.5 V
  • 5-V Tolerant I/O ports
  • 400-kHz Fast I2C bus
  • Two hardware address pins allow up to four devices on the I2C/SMBus
  • Input and output configuration register
  • Polarity inversion register
  • Power-up with all channels configured as inputs
  • No glitch on power up
  • Noise filter on SCL/SDA inputs
  • Latched outputs with high-current drive maximum capability 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)
    • 200-V Machine model (A115-A)
    • 1000-V Charged-device model (C101)
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory

Specifications

Category Integrated Circuits (ICs)InterfaceI/O Expanders Series -
Programmable Not Verified Number of I/O 8
Interface I²C, SMBus Interrupt Output Yes
Features POR Output Type Push-Pull
Current - Output Source/Sink 10mA, 25mA Clock Frequency 400 kHz
Voltage - Supply 2.3V ~ 5.5V Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount Base Product Number PCA9538

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PCA9538DBR Datasheet PDF

Preliminary Specification PCA9538DBR PDF Download

PCA9538DBR PDF Preview

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