What is SPI NAND Flash?

SPI refers to a serial peripheral interface which is a protocol for incorporating various devices and flash memory provides data storing facilities. SPI NAND flash is a module that is following the SPI interface incorporated with NAND memory. It practically retains the data without even connecting to a power outlet. This type of memory utilizes the floating gate transistors that promote data retention without a power supply. SPI NAND solutions are gaining popularity because of the small form factor that makes them suitable for a wide range of devices. The increasing trend of small form factor devices is drawing FORESEE attention in manufacturing small-footprint electronics memory solutions. SPI NAND modules incorporating either NAND or NOR, use only a few traces of PCB space than parallel NAND solutions.

Now, the embedded developers are switching from SPI NOR flash to SPI NAND for providing better code and data storage. The trend of NAND solution is rising because of the number of benefits over NOR such as longevity, higher densities, stability, lower power consumption, and faster data transfer rates.

FORESEE SPI NAND Flash Basic Description

Acknowledging emerging market needs, FORESEE is offering higher densities of NAND memory fixtures for efficient code handling. The FORESEE product complies with the JEDEC standard to offer wide compatibility options. SPI NAND products are developed by incorporating intelligent technologies to make the fixture smarter and more worthy. It consumes power between 1.8V to 3.3V, offering excellent power efficiency. The fixture is compatible with market standard SPI design and is enabling the developers to quickly enhance the system capacities without re-designing the complete system. This FORESEE NAND product is designed in various storage capacities ranging from 512Mb to 4 Gb. This compact packaging keeps the product stable and intact. Compact packaging together with 1-Bit ECC circuitry enhances the longevity of SPI NAND flash. It is providing the fastest load frequency up to 108MHz. The firmware is compact enough to provide data retention for up to 10 years.

Product Specifications:

· FORESEE SPI NAND product line available in many capacity versions such as 512Mb, 1Gb, 2Gb, or 4Gb to meet the storage requirement of various systems.

· It comes in the WSON-8 package having a size of 8*6*0.8 mm.

· Supported Page Size: 2k+64 bytes

· Utilizes the operating power 1.8V/3.3V

· High endurance up to 100K read/erase cycles

· Long data retention period of 10 years

· 20K-Byte OTP area, providing more area for security

· Working temperature range: -40°C to 85°C

· Built-in ECC support

Compact Packaging Importance

It is adopting the WSON packaging using only 8 pins for smaller and compact sizes. This package size is 80% smaller than TSOP packaging. The miniature packaging makes the product precise for handheld devices thus enhancing the market competitiveness and standard. It is widely adopted for applications such as industrial and house IPC, cameras, TV systems, speakers, etc.

Advanced Software Encryption

The typical memory chips uses have a 16K byte OTP area but FORESEE NAND memory chip has a 20K-byte OTP area that is designed for accomplishing advanced software encryption. It offers a much larger secure room than others. This data in the OTP area can be deleted or replaced. Only the authorized user can modify the code.

Comparing Performance with other Memory Fixtures

Performance is the major factor for any storage media and FORESEE is developing each fixture that meets the highest performance criteria. Longsys is listing SPI NAND solutions ranging up to 4GB and parallel NAND fixtures also having densities up to 4GB.Parallel memory units are suitable solutions for systems having large footprints. Serial flash units are ruling over the micro-embedded solutions having higher megabytes, mini footprints, and smart algorithms. The built-in ECC circuitry in Serial NAND fixture offers an efficient error detection and handling phenomenon than any other memory fixture.

High Durability: The durability of NAND chips rely on the limited number of read/write cycles. The chip stops storing data after reaching the limited number of read/write cycles. The typical NAND media can endure 100, 000 P.E cycles. The quality of NAND chips is based on the brand, firmware algorithms, designs, and packaging.

Wide Compatibility: The emerging advanced systems such as IoT, mobile devices, smart home applications, etc are greatly using this device. The use of advanced ECC specification makes the product perfect for complex systems solving the problem of multi-sourcing. Stronger ECC specifications improve the service life of the product.

Latency: SPI NAND units are empowering the AI applications and the main parameter in the AI system is the latency. Latency is the time it takes for the SPI NAND Flash chip to receive and process a command. The latency can be affected by the chip's architecture, the command set, and the controller. These systems require a quick1 response for performing complex computations within milliseconds. The FORESEE has introduced the new generation of NAND SPI mediums having the higher clock speed. Till now, it has achieved the 108MHz read performance.

Outlook

The large density application including smart watches, TV, and printers, are requiring the SPI NAND flash. Low-capacity NAND flash is also useful in the automobile, medical, and security sectors. The market demand for NAND flash solutions is rising with the emerging AI sector. As a leading provider of flash memory solutions, Longsys is uniquely positioned to offer insights into the future of the storage sector. The company is focusing on the future and is planning to extend the business, developing the newest products to raise the market scope. To sustain our success in the global market, we will continue to focus on innovation, quality, and customer service.