1.The LED input voltage 4.5V ~ 6.5V, built-in LDO.

2.The on-chip voltage regulator tube, power supply end series resistance to IC VDD feet, without external regulator.

3.The gray level adjusting circuit (256 brightness adjustable).

4.Dual built-in RC oscillator, and according to the data signal line for clock synchronization, after receiving the data of the unit can automatically the follow-up data were shaping forwarding.

5.The built-in power on reset circuit.

6.The PWM control terminal can achieve the 256 level adjustment, scanning frequency of not less than 400Hz/s.

7.The cascade interface serial interface, via a signal line to complete the receiving and decoding of data.

8.When the refresh rate of 30 frames per second, the number of cascade low speed mode is not less than 512 points, the high-speed mode is not less than 1024 points.

9.The data transmission speed of up to 800Kbps.