GENERAL DESCRIPTIONS：

The W25R256JW (256M-bit) Serial Flash memory provides a storage solution for systems with limitedspace, pins and power. The W25R series offers flexibility and performance well beyond ordinary SerialFlash devices. They are ideal for code shadowing to RAM, executing code directly from Dual/Quad SPI(XIP) and storing voice, text and data. The device operates on a single 1.7V to 1.95V power supply withcurrent consumption as low as 1µA for power-down. All devices are offered in space-saving packages.The W25R256JW support the 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/O3. SPI clock frequencies of up to 104MHz aresupported allowing equivalent clock rates of 208MHz (104Hz x 2) for Dual I/O and 416MHz (104MHz x 4)for Quad I/O when using the Fast Read Dual/Quad I/O instructions. These transfer rates can outperformstandard Asynchronous 8 and 16-bit Parallel Flash memories.The device supports JEDEC standard manufacturer and device ID and SFDP Register, a 64-bit UniqueSerial Number and three 256-bytes Security Registers.The W25R series is also equipped with an enhanced authentication security feature by Replay ProtectionMonotonic Counter (RPMC). It provides a high level secured communication between the flash device andthe controller to reduce the system vulnerabilities to hardware attacks.

FEATURES：

 New Family of SpiFlash Memories

– W25R256JW: 256M-bit / 32M-byte

– 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 Reset

 Highest Performance Serial Flash

– 104MHz Standard/Dual/Quad SPI clocks

– 208/416MHz equivalent Dual/Quad SPI

– 50MB/S continuous data transfer rate

– More than 100,000 erase/program cycles

– More than 20-year data retention

 Low Power, Wide Temperature Range

– Single 1.7 to 1.95V supply

– 4mA active current, <1µA Power-down (typ.)

– -40°C to +85°C operating range

 Flexible Architecture with 4KB sectors

– Uniform Sector/Block Erase (4K/32K/64K-Byte)

– Program 1 to 256 byte per programmable page

– Erase/Program Suspend & Resume

 Advanced Security Features

– Power Supply Lock-Down and OTP protection

– Top/Bottom, Complement array protection

– Individual Block/Sector array protection

– 64-Bit Unique ID for each device

– Discoverable Parameters (SFDP) Register

– 3X256-Bytes Security Registers with OTP locks

– Replay Protection Monotonic Counter (RPMC)

– Volatile & Non-volatile Status Register Bits

 Space Efficient Packaging

– 8-pad WSON 6x5-mm / 8x6-mm

– 16-pin SOIC 300-mil(additional /RESET pin)(1)

– Contact Winbond for other options