This device is a monolithic, low voltage, low current power 16-bit shift register designed for LED panel displays. The STP16CP05 contains a 16-bit serial-in, parallel-out shift register that feeds a 16-bit, D-type storage register. In the output stage, sixteen regulated current sources provide from 5 mA to 100 mA constant current to drive the LEDs.
Low voltage power supply
16 constant current output channels
Adjustable output current through external resistor
Serial data IN/parallel data OUT
Can be driven by a 3.3 V microcontroller
Max clock frequency 30 MHz
The LEDs" brightness can be controlled by using an external resistor to adjust the output current