8_digit_LED_driver

Published:2009/7/24 10:26:00 Author:Jessie | From:SeekIC

In this circuit, two MAX7217s drive 16 digits from a single 5-V supply, while being addressed through one 3-wire serial link. Only one external component (per chip) is needed. One resistor sets the maximum current (ISET) for all 8 segments, while a fast (up to 10 MHz) cascadable serial interface loads data directly from most microprocessors. Maxim, 1992, Applications and Product Highlights, p. 2-9.



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