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16-channel I?C LED blinker joins Catalyst bus lineup

Posted: 03 Jul 2008 ?? ?Print Version ?Bookmark and Share

Keywords:LED? bus? I2C driver blinker?

Catalyst Semiconductor Inc. has added a 16-channel I?C/SMBus LED driver/blinker to its line of bus products. The CAT9552 drives up to 16 LEDs in either programmable flashing or on/off modes. The CAT9552 is ideal for applications including advertising point-of-sale signage with flashing LEDs, and any type of consumer or industrial equipment with on/off LED indicators.

The CAT9552 is designed with an internal oscillator and two programmable on/off or blink rate timers, adjustable from 0.02 to 5.8s. This oscillator and its two timers reduce overall parts count and substantially reduce the I?C bus traffic, which would normally occur if traditional bus expanders were used. An added benefit of the CAT9552 is that I/Os not used for controlling LEDs can be used as general-purpose I/Os (GPIOs).

Available in 24-lead SOIC, TSSOP and 24-pad TQFN (4mm x 4mm), the CAT9552 LED driver/blinker sells for $1.00 each for 10,000 piece quantities. Samples are available now.

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