The MAX7221CWG+T with Maxim Integrated LED Display Drivers 8-Digit LED Display Driver from Analog Devices is an 8-channel display driver that drives common cathode LED displays. It features an onboard power amplifier that supports up to 100mA sinking current per digit, allowing long common-cathode LED strings to be used. Internal segment and digit decoding simplifies interfacing to microcontroller I/O ports. The driver also has a built-in clock with selectable frequency, multiplexing LED displays for reducing display power requirements, and configurable blanking and display control. The device is also equipped with a number of diagnostic features such as frequency stability monitoring, overvoltage shutdown, and open/short LED detection. With its extensive features, the MAX7221CWG+T with Maxim Integrated LEDDisplay Drivers 8-Digit LED Display Driver from Analog Devices is ideal for applications where a combination of high power efficiency and long LED strings is required.