As Winbond Authorized Distributor-Indasina Technology hereby introduced the old version of W25Q64FWSSIG can replace the new version of W25Q64JWSSIQ. At present, the old version of W25Q64FWSSIG is still available to purchase on the market. There is no difference between the new version of W25Q64JWSSIG and the old version of W25Q64FWSSIG.

W25Q16FW (16M bit) serial flash provides a storage solution for limited systems with space, pins, and power. The 25Q series provides devices with far more flexibility and performance than ordinary serial flash memory. They are ideal for mapping code to RAM, executing code directly from Dual/Quad SPI (XIP) and storing voice, text, and data. The device uses 1.65V to 1.95V single power supply, and has the current consumption as low as 4mA active power, power saving 1 μA. All devices come with a space-saving feature pack.

The W25Q16FW array is divided into 8192 programmable pages of 256 bytes each. Up to 256 bytes can be programmed at once. This can be done in groups of 16 (4KB sector erasure), 128 (32KB block erasure), 256 (64KB block erasure) or the entire chip (chip erasure). W25Q16FW has 512 erasable sectors and 32 erasable blocks, respectively. The smaller 4KB sector provides flexibility for applications that require data and parameter storage with greater space.

W25Q16FW supports standard Serial Peripheral Interface (SPI), Dual/Quad I/O SPI and 2-clock instruction cycle Quad Peripheral Interface (QPI) : Serial clock, chip selection, serial data I/O0 (DI), I/O1 (DO), I/O2 (/ WP) and I/O3 (/ HOLD). Supports SPI clock frequencies up to 104MHz equivalent clock rates of 208MHz (104MHz x 2) for dual I/O and 416MHz (104MHz x 4) for four-way I/O using fast reading of dual/quad I/O and QPI instructions. These transfer rates can exceed standard asynchronous 8-bit and 16-bit parallel flash memory. The sequential read mode enables efficient memory access with only 8 instruction overhead to read the 24-bit address, thus enabling true XIP (execute in place) operations.

Hold pins with top or bottom array controls, write protection pins, and programmable write protection provide further control flexibility. In addition, the device also supports JEDEC standard manufacturer and device IDs, 64-bit unique serial numbers, and three 256-byte security registers.

FEATURES

New Family of SpiFlash Memories
– W25Q16FW: 16M-bit / 2M-byte
– Standard SPI: CLK, /CS, DI, DO, /WP, /Hold
– Dual SPI: CLK, /CS, IO0, IO1, /WP, /Hold
– Quad SPI: CLK, /CS, IO0, IO1, IO2, IO3
 – QPI: CLK, /CS, IO0, IO1, IO2, IO3 – Software & Hardware Reset

Highest Performance Serial Flash
– 104MHz Single, Dual/Quad SPI clocks
– 208/416MHz equivalent Dual/Quad SPI
– 50MB/S continuous data transfer rate
– Min. 100K Program-Erase cycles per sector
– More than 20-year data retention

Efficient “Continuous Read” and QPI Mode
– Continuous Read with 8/16/32/64-Byte Wrap
– As few as 8 clocks to address memory
– Quad Peripheral Interface (QPI) reduces
instruction overhead
– Allows true XIP (execute in place) operation
– Outperforms X16 Parallel Flash

Low Power, Wide Temperature Range
– Single 1.65 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
– Software and Hardware Write-Protect
– 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-Byte Security Registers with OTP locks
– Volatile & Non-volatile Status Register Bits

Space Efficient Packaging
– 8-pin SOIC 150-mil/208-mil
– 8-pin VSOP 150-mil
– 8-pad WSON 6x5-mm
– 8-pad USON 2x3 / 4x3-mm
– 8-ball WLCSP
– Contact Winbond for KGD and other options