TCA6416A I²C and SMBus I/O Expander

Texas Instruments TCA6416A I²C and SMBus I/O Expander

Texas Instruments' low-voltage 16-Bit I²C and SMBus I/O expander

Texas Instruments' 16-bit I/O expander for the two-line bidirectional bus (I²C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I²C interface [serial clock (SCL) and serial data (SDA)]. The major benefit of this device is its wide VCC range. It can operate from 1.65 V to 5.5 V on the P-port side and on the SDA/SCL side. This allows the TCA6416AA to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power.   TCA6416A Datasheet

  Features   Applications
  • Operating power-supply voltage range of 1.65 V to 5.5 V
  • I²C to parallel port expander
  • Low standby current consumption of 3 µA
  • Schmitt-trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
  • Cell phones
  • PDAs
  • Portable media players
  • MP3 players
  • Portable instrumentation

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Texas Instruments
Part Number
Part Number
Packaging Package/Case Voltage -
TCA6416ARTWR 296-24826-2-ND Tape & Reel 24-WQFN
Exposed Pad
1.65 V ~ 5.5 V I²C TCA6416A Datasheet
296-24826-1-ND Cut Tape
296-24826-6-ND Digi-Reel
TCA6416AZQSR 296-24559-2-ND Tape & Reel 24-BGA
296-24559-1-ND Cut Tape
296-24559-6-ND Digi-Reel
TCA6416APWR 296-24536-2-ND Tape & Reel 24-TSSOP
4.40 mm Width)
296-24536-1-ND Cut Tape
296-24536-6-ND Digi-Reel