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1.8V 256Mbit Serial Flash with Dual/Quad SPI W25Q256JWEIQ


The W25Q256JW (256M-bit) serial flash memory provides storage solution space, pins and power for systems with limited capacity. The 25Q series offers flexibility and performance devices far beyond ordinary serial flash. They are ideal for mapping code to RAM, executing code directly from dual/quad SPI (XIP) and storing voice, text and data. The device operates from a single 1.7V to 1.95V supply and consumes as little as 1µA when powered down. All devices are available in space-saving packages.

The W25Q256JW array is organized into 131,072 programmable pages of 256 bytes each. Up to 256 bytes can be programmed at one time. Pages can be erased in groups of 16 (4KB sector erase), groups of 128 (32KB block erase), 256 groups (64KB block erase), or the entire chip (chip erase). The W25Q256JW has 8,192 erasable sectors and 512 erasable blocks respectively. Small sectors of 4KB allow for greater flexibility in applications requiring data and parameter storage.

W25Q256JW supports standard serial peripheral interface (SPI), dual/quad I/O SPI: serial clock, chip select, serial data I/O0 (DI), I/O1 (DO), I/O2 and I/O O3. The SPI clock frequency is W25Q256JW supporting up to 133MHz, allowing an equivalent clock rate of 266MHz (133MHz x 2) for dual I/O and 532MHz (133MHz x 4) for quad I/O when using fast read I/O. These transfer rates can outperform standard asynchronous 8-bit and 16-bit parallel flash.

In addition, the device supports JEDEC standard manufacturer and device IDs and SFDP registers, a 64-bit unique serial number and three 256-byte security registers.


1.8V 256Mbit Serial Flash with Dual/Quad SPI W25Q256JWEIQ


New SpiFlash Memory Family

W25Q256JW: 256M bits/32M bytes

– Standard SPI: CLK, /CS, DI, DO

– Dual SPI: CLK, /CS, IO0, IO1

– Quad SPI: CLK, /CS, IO0, IO1, IO2, IO3

– 3 or 4 byte addressing mode

– Software and hardware reset

Highest Performance Serial Flash

– 133MHz standard/dual/quad SPI clock

– 266/532MHz equivalent dual/quad SPI

– 66MB/S continuous data transfer rate

– Minimum. 100K program-erase cycles per sector

– Over 20 years of data retention

Low power consumption, wide temperature range

– Single 1.7V to 1.95V supply

–<1µA power down (typ)

– -40°C to +85°C operating range

Flexible architecture with 4KB sectors

– Unified Sector/Block Erase (4K/32K/64K bytes)

– Program 1 to 256 bytes per programmable page

- Erase/Program Suspend and Resume

Advanced Security Features

– Software and hardware write protection

– Power lock

– Special OTP protection

– Top/bottom, complementary array protection

– Single block/sector array protection

– 64-bit unique ID for each device

– discoverable parameter (SFDP) register

– 3X256 byte security register with OTP lock

– Volatile and nonvolatile status register bits

space saving packaging

– 8-pad WSON 6x5-mm / 8x6-mm

– 16-pin SOIC 300 mil (additional /RESET pin)

– 24 ball TFBGA 8x6 mm

– 32 ball WLCSP

Winbond W25Q256JWEIQ, 1.8V 256M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI, Winbond agent, and more wonderful Winbond flash articles to share<Winbond W25Q128FVSIG SOIC8 3V 128M-BIT SERIAL FLASH MEMORY>

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