Low-Voltage Translating 16-Bit I²C-Bus/SMBus I/O Expander

PCA6416A

Product Details

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Block Diagram

PCA6416A Block Diagram

PCA6416A Block Diagram

Features

Key Features

  • I²C-bus to parallel port expander
  • Operating power supply voltage range of 1.65 V to 5.5 V
  • Allows bidirectional voltage-level translation and GPIO expansion between:
    • 1.8 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V or 5 V Port P
    • 2.5 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V or 5 V Port P
    • 3.3 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V or 5 V Port P
    • 5 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V or 5 V Port P
  • Low standby current consumption:
    • 1.5 μA typical at 5 V VDD
    • 1.0 μA typical at 3.3 V VDD
  • Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs:
    • Vhys = 0.18 V (typical) at 1.8 V
    • Vhys = 0.25 V (typical) at 2.5 V
    • Vhys = 0.33 V (typical) at 3.3 V
    • Vhys = 0.5 V (typical) at 5 V
  • 5 V tolerant I/O ports
  • Active LOW reset input (RESET)
  • Open-drain active LOW interrupt output (INT)
  • 400 kHz Fast-mode I²C-bus
  • Input/Output Configuration register
  • Polarity Inversion register
  • Internal power-on reset
  • Power-up with all channels configured as inputs
  • No glitch on power-up
  • Noise filter on SCL/SDA inputs
  • Latched outputs with 25 mA 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)
    • 1000 V Charged-Device Model (C101)
  • Packages offered: TSSOP24, HWQFN24, VFBGA24

Product Longevity Program

  • This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The PCA6416APW is included in the 15-year program."

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