If you can tolerate somewhat lower performance there is none such, you could always adopt a serial solution, and enjoy less risk of bus issues; there are a number of chips expressly intended to serve as LED drivers that can be controlled by a serial bus such as SPI or I2C. Dallas Semiconductor makes some of these, I know no Dallas chip, just Allegro, Rohm and Siti although I am sure there are others. Note that your DS89C430 does not have SPI or I2C though which is not the way you drive serial LED drivers. Thus, you would either need to bit-bang the serial interface (costing you even more performance) or rather no performance cost at all, use a parallel to serial bridge of the proper type, or move to a derivative that has hardware support for the type of serial bus in question.no need whatsoever

My companys business is LED signs and we sell ~$50 Million annually. All our high perfomance signs are serially configured

Erik