Texas Instruments TCA5405
The 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 1.65V 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.| Part No. | TCA5405 |
|---|---|
| Datasheet | TCA5405 Download |
| Manufacturer |  Texas Instruments |
| Description | Low Voltage 5-Bit Self-Timed Single-Wire Output Expander |
| Buy | Stock & Price |
FEATURES
1● Operating Power-Supply Voltage Range of 1.65 V to 3.6 V
● 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
● ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 1000-V Charged-Device Model (C101)
APPLICATIONS
● Cell Phones● PDAs
● Portable Media Players
● MP3 Players
● Portable Instrumentation PIN # 1 2 3 4 5 6 7 8 RUG PACKAGE (TOP VIEW) 8 17 26 3 45 NAME VCC DIN GND Q0 Q1 Q2 Q3 Q4 COMMENTS Supply Voltage Data Input Ground GPO GPO GPO GPO GPO
DESCRIPTION
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 1.5mm x 1.5mm RUG uQFN package.
