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W25Q40BLDAIP Datasheet(PDF) 5 Page - Winbond |
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W25Q40BLDAIP Datasheet(HTML) 5 Page - Winbond |
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5 / 74 page  W25Q40BL Publication Release Date: May 04, 2012 - 5 - Revision D 1. GENERAL DESCRIPTION The W25Q40BL (4M-bit) Serial Flash memory provides a storage solution for systems with limited space, pins and power. The 25Q series offers flexibility and performance well beyond ordinary Serial Flash 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 2.3V to 3.6V power supply with current consumption as low as 4mA active and 1µA for power-down. All devices are offered in space-saving packages. The W25Q40BL array is organized into 2,048 programmable pages of 256-bytes each. Up to 256 bytes can be programmed at a time. Pages can be erased in groups of 16 (4KB sector erase), groups of 128 (32KB block erase), groups of 256 (64KB block erase) or the entire chip (chip erase). The W25Q40BL has 128 erasable sectors and 8 erasable blocks respectively. The small 4KB sectors allow for greater flexibility in applications that require data and parameter storage. (See figure 2.) The W25Q40BL supports the standard Serial Peripheral Interface (SPI), and a high performance Dual/Quad output as well as Dual/Quad I/O SPI: Serial Clock, Chip Select, Serial Data I/O0 (DI), I/O1 (DO), I/O2 (/WP), and I/O3 (/HOLD). SPI clock frequencies of up to 80MHz are supported allowing equivalent clock rates of 160MHz (80MHz x 2) for Dual I/O and 320MHz (80MHz x 4) for Quad I/O when using the Fast Read Dual/Quad I/O instructions. These transfer rates can outperform standard Asynchronous 8 and 16-bit Parallel Flash memories. The Continuous Read Mode allows for efficient memory access with as few as 8-clocks of instruction-overhead to read a 24-bit address, allowing true XIP (execute in place) operation. A Hold pin, Write Protect pin and programmable write protection, with top, bottom or complement array control, provide further control flexibility. Additionally, the device supports JEDEC standard manufacturer and device identification with a 64-bit Unique Serial Number. 2. FEATURES • Family of SpiFlash Memories – W25Q40BL: 4M-bit/512K-byte (524,288) – 256-byte per programmable page – Standard SPI: CLK, /CS, DI, DO, /WP, /Hold – Dual SPI: CLK, /CS, IO0, IO1, /WP, /Hold – Quad SPI: CLK, /CS, IO0, IO1, IO2, IO3 • Highest Performance Serial Flash – 80MHz Dual/Quad SPI clocks – 160/320MHz equivalent Dual/Quad SPI – 40MB/S continuous data transfer rate – Up to 5X that of ordinary Serial Flash – More than 100,000 erase/program cycles – More than 20-year data retention • Efficient “Continuous Read Mode” – Low Instruction overhead – Continuous Read with 8/16/32/64-Byte Wrap – As few as 8 clocks to address memory – Allows true XIP (execute in place) operation – Outperforms X16 Parallel Flash • Low Power, Wide Temperature Range – Single 2.3 to 3.6V supply – 4mA active current, <1µA Power-down current – -40°C to +85°C operating range • Flexible Architecture with 4KB sectors – Uniform Sector Erase (4K-bytes) – Uniform Block Erase (32K and 64K-bytes) – Program one to 256 bytes – Erase/Program Suspend & Resume • Advanced Security Features – Software and Hardware Write-Protect – Top/Bottom, 4KB complement array protection – Lock-Down and OTP array protection – 64-Bit Unique Serial Number 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 / VSOP / PDIP – 8-pad WSON 6x5-mm, USON 2x3-mm – Contact Winbond for KGD and other options |
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