Description: Operating Voltage: 4.5V-5.5V A memory mapping and multi-function LED controller driver Max display segment: 16 ×8(128 patterns), with a 13 ×3 matrix key scan circuit Suitable for multiple LED applications because of the software configuration features Compatible with most Microcontroller Units(MCU) for communicating via a Two-Line Bidirectional I2C-Bus Specification: Size: Approx. 38 ×20 ×2 mm/ 1.50 ×0.79 ×0.08 inch Application: industrial control indicators, digital clocks, thermometers, counters, VCR sets, meters, LED displays and other consumer applications Packaging Material: Anti-Static Bag Package Includes: 1 Piece of Module 2 Pieces of Pin