Since 2016, smart video doorbells have seen significant growth in both volume and profitability, with the main markets still being overseas. Domestic sales have also started to rise steadily.

Recently, we have received some inquiries from customers in the video doorbell industry. They mentioned the need for a local, large-capacity storage chip. Previously, we knew that NOR Flash was sufficient for this type of product. So, why is there now a need for large-capacity and flexible storage chips?

We have summarized the reasons into the following key points:

1. Wi-Fi Connectivity Issues: Since smart video doorbells connect to the backend through Wi-Fi, when the Wi-Fi connection is unstable or the signal is interfered with, they need to cache a short video locally. In this case, NOR Flash is not sufficient for storage.

2. Fast Startup Speed: Smart video doorbells require extremely fast startup. The time between pressing the button and capturing the first frame of video or image should be as short as possible. The system prioritizes activating the camera and capturing video signals, followed by encoding. This requires a large-capacity local chip to store the video.

3. Outdoor Use: Smart video doorbells are usually installed outdoors, which means they need to be waterproof, stable to use, and not easily stolen.

Previously, customers used some T-cards but encountered the following issues:

1. Poor Waterproofing: Ultimately, customers did not accept it.

2. Poor Contact Reliability: The devices were prone to connectivity issues.

3. Vulnerability to Theft: The devices were easily stolen.

The CS SD NAND with 128MB and 512MB capacities is pin-to-pin compatible, offering customers more choices. Therefore, we believe that as smart video doorbells become more popular, the application of SD NAND in these products will continue to increase.