TCA5405 Output Expander

Texas Instruments' low voltage 5-bit self-timed, single-wire output expander

Image of Texas Instruments' TCA5405 Output ExpanderTexas Instruments' TCA5405 is a 5-bit output expander controlled using a single wire input. This device is ideal for portable applications as it has a wide VCC range of 1.65 V to 3.6 V. The TCA5405 uses a self-timed serial data protocol with a single data input driven by a master device synchronized to an internal clock of that device. During a Setup phase, the bit period is sampled, then the TCA5405 generates its own internal clock synchronized to that of the Master device to sample the input over a five-bit-period Data Transfer phase and writes the bit states on the parallel outputs after the last bit is sampled. The TCA5405 is available in an 8-pin 1.5 mm × 1.5 mm RUG uQFN package.

Features Applications
  • Operating power-supply voltage range of 1.65V to 3.6V
  • Five independent push-pull outputs
  • Single input (DIN) controls state of all outputs
  • High-current drive outputs maximum capability for directly driving LEDs
  • Latch-up performance exceeds 100 mA per JESD 78, class II
  • Cell phones
  • PDAs
  • Portable media players
  • MP3 players
  • Portable instrumentation

TCA5405 Output Expander

ImageManufacturer Part NumberDescriptionApplicationsInterfaceAvailable Quantity
TCA5405RUGR datasheet linkIC EXPNDER 5BIT SGL WIRE 8-X2QFNTCA5405RUGRIC EXPNDER 5BIT SGL WIRE 8-X2QFNCell Phones, PDA, PlayersSerial2072 - Immediate
TCA5405RUGR product page link
Published: 2013-07-02