Code Storage Flash Memory
For data and code storage Winbond is offering a broad portfolio of Serial NOR and NAND Flash products as well as multi-chip packages (MCP) combining both memory types.
NOR Flash W25x, W35T & W74M Families
NOR Flash is available in densities from 512kb up to 2Gb and with different interface data widths from x1 to x8.
Standard SPI (W25x) is offered as well as a high performance Octal DDR interface (W35T) for high performance XiP applications with a bandwidth up to 400MB/s.
In general, the NOR Flash memories are available for 1.2V, 1.8V and 3V designs.
With W74M Series applications the need for higher security can be realised. This family integrates an authentication IC with OTP key storage, monolithic counters and an engine for the HMAC SHA-256 algorithm alongside the flash memory.
There are also a lot of automotive options available with products meeting requirements up to ISO26262 ASIL-D.
NAND Flash W25N, W35N, W29N & SpiStack® Families
The NAND flash portfolio covers densities from 512Mb up to 8Gb and offers the data bus widths x4 and x8.
It is worth to mention that Winbond’s QSPI NOR and QSPI NAND (W25N) are pin compatible. In addition, their basic instruction set is compatible too. This makes them ideal for application having the need for a memory size beyond the common NOR densities. In its 2nd generation the data throughput was increased to 83 MB/s.
If higher data rates are needed the W35N Octal NAND products offer data transfer speeds up to 240 MB/s in continuous read operation.
This SLC based products have excellent data integrity and data retention of more than ten years. They are specified to perform more than 100,000 program/erase cycles.
The W29N SLC NAND products come with a standard ONFI NAND command set to be used as a drop-in replacement for applications needing 1Gb up to 8Gb memory densities. Winbond offers 1-bit ECC and 4-bit ECC options.
For applications with special needs on the mechanical footprint Winbond has integrated a 1.8V NAND with a 1.8V LPDDR2 or LPDDR4x memory into a multi-chip package (MCP). For more details on W71N Series please contact our team.
The SpiStack® W25M family covers homogeneous memories with a stack of SPI or NAND flash dies and heterogeneous products which integrate NOR and NAND flash into one package.
By stacking multiple dies of one memory technology the increase of the data rate is possible.
Using both types of flash makes an application more flexible and use cases can be optimized.
On our overview page you can find dedicated links to the different Winbond code storage flash memory products.