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W25Q64BV
1. GENERAL DESCRIPTION
The W25Q64BV (64M-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 devices operate on a single 2.7V 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 W25Q64BV array is organized into 32,768 programmable pages of 256-bytes each. Up to 256 bytes
can be programmed at a time. Pages can be erased in groups of 16 (sector erase), groups of 128 (32KB
block erase), groups of 256 (64KB block erase) or the entire chip (chip erase). The W25Q64BV has 2,048
erasable sectors and 128 erasable blocks respectively. The small 4KB sectors allow for greater flexibility
in applications that require data and parameter storage. (See figure 2.)
The W25Q64BV 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 for Dual Output and 320MHz for Quad Output when using the Fast
Read Dual/Quad Output 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 or bottom 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
– Lock-Down and OTP protection
? Family of SpiFlash Memories
– W25Q64BV: 64M-bit / 8M-byte (8,388,608)
– 256-bytes per programmable page
? Standard, Dual or Quad SPI
– Standard SPI: CLK, /CS, DI, DO, /WP, /Hold
– Dual SPI: CLK, /CS, IO 0 , IO 1 , /WP, /Hold
– Quad SPI: CLK, /CS, IO 0 , IO 1 , IO 2 , IO 3
? Highest Performance Serial Flash
– Up to 6X that of ordinary Serial Flash
– 80MHz clock operation
– 160MHz equivalent Dual SPI
– 320MHz equivalent Quad SPI
– 40MB/S continuous data transfer rate
? Efficient “Continuous Read Mode”
– Low Instruction overhead
– As few as 8 clocks to address memory
– Allows true XIP (execute in place) operation
– Outperforms X16 Parallel Flash
Note 1: Contact Winbond for details
-5-
? Low Power, Wide Temperature Range
– Single 2.7 to 3.6V supply
– 4mA active current, <1μA Power-down (typ.)
– -40°C to +85°C operating range
? Flexible Architecture with 4KB sectors
– Uniform Sector Erase (4K-bytes)
– Block Erase (32K and 64K-bytes)
– Program one to 256 bytes
– More than 100,000 erase/write cycles
– More than 20-year data retention
? Advanced Security Features
– Software and Hardware Write-Protect
– Top or Bottom, Sector or Block selection
(1)
– 64-Bit Unique ID for each device (1)
? Space Efficient Packaging
– 8-pin SOIC 208-mil
– 8-pin PDIP 300-mil
– 8-pad WSON 8x6-mm
– 16-pin SOIC 300-mil
– Contact Winbond for KGD and other options
Publication Release Date: July 08, 2010
Revision E
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