8-Bit Serial Input Constant-Current Latched LED Driver

The A6277 is specifically designed for LED Display applications. Each BiCMOS device includes an 8-bit CMOS Shift register accompanying data Latches and eight NPN constant-current sink drivers. Two package styles and two operating temperature ranges are available.
The CMOS Shift register and Latches allow direct interfacing with microprocessor-based systems. With a 5 V Logic supply, typical serial data-input rates are up to 20 MHz. The LED drive current is determined by the user selection of a single resistor. A CMOS serial data output permits cascade connections in applications requiring additional drive lines. For inter-digit blanking, all output drivers CAN be disabled with an ENABLE input high. In addition, a HIGH/LOW function enables full selected current with the application of a Logic low, or 50% selected current with the application of a Logic high.
By Allegro MicroSystems, Inc.
A6277 's PackagesA6277 's pdf datasheet

A6277 Pinout, Pinouts
A6277 pinout,Pin out
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