Winbond adds automotive-grade NOR and extended temperature NAND flash memories

Automotive-grade NOR flash devices and serial NAND flash memory devices in extended-temperature versions are available from Winbond Electronics.

The power-saving benefits of Winbond’s 1.2V W25Q-ND series of SpiFlash memory products are being brought to a wider range of applications as the company introduces larger memory capacities.

Winbond is adding the W25Q64ND, offering capacity of 64Mbits, and the 128Mbit W25Q128ND, to the W25Q80ND 1.2V SpiFlash part which is available in an 8Mbit density. The W25Q64ND will be available for sampling early in 2019. The 128Mbit W25Q128ND is also in development, with customer samples expected by the end of 2019.

The 1.2V SpiFlash products offer typical normal mode and standby mode power savings of 33 per cent compared to equivalent NOR flash devices running from a 1.8V supply. Market demand has been led by manufacturers of wireless and battery-powered devices, in which the low power operation of the 1.2V SpiFlash memories complements other technologies such as the Bluetooth low energy short-range wireless networking protocol.

The company has also introduced automotive grade NOR slash products, and an extended-temperature range of high-performance serial NAND flash products.

Winbond has also implemented a 32nm process for manufacturing robust single-level cell (SLC) NAND flash products at its fabrication plant in Taichung City, Taiwan. The first 32nm part, the W29N02KV, is now sampling to customers. The W29N02KV is a 2Gbit ONFi NAND flash device. The 32nm W25N02KV, a Serial NAND flash part also 2Gbit in density and will be sampling to customers in the first half of 2019.

Automotive grade devices, the W25Q512JV (512Mbit density) and the W25Q01JV (1Gbit) will be available in the first half of 2019 in temperature grades 3 (up to 85 degrees C), 2 (up to 105 degrees C) and 1 (up to 125 degrees C). The high-density parts are suitable for use in safety-critical applications that have a large code base, such as infra red cameras in advanced driver assistance systems (ADAS), and V2X communications systems.

Finally, high-performance serial NAND flash parts have been announced in extended temperature versions, up to AG2+ (115 degrees C). The serial NAND flash products combine high-speed operation, such as a read speed of up to 80Mbytes per second, and robust operation in challenging automotive conditions. The automotive-grade serial NAND flash is available in densities up to 2Gbits.

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