0
ACTIVE
Number of I/Os |
5 |
Features |
1-MHz maximum frequency, Single-wire protocol |
Supply voltage (min) (V) |
1.65 |
Supply voltage (max) (V) |
3.6 |
Addresses |
1 |
Rating |
Catalog |
Frequency (max) (MHz) |
1 |
Operating temperature range (°C) |
-40 to 85 |
X2QFN (RUG)-8-2.25 mm² 1.5 x 1.5
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. 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 × 1.5mm RUG uQFN package.
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