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Teilenummer | W25Q64FW |
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Beschreibung | 1.8V 64M-BIT SERIAL FLASH MEMORY | |
Hersteller | Winbond | |
Logo | ||
Gesamt 30 Seiten W25Q64FW
1.8V 64M-BIT
SERIAL FLASH MEMORY WITH
DUAL/QUAD SPI & QPI
Publication Release Date: March 25, 2013
Preliminary - Revision D
W25Q64FW
1. GENERAL DESCRIPTIONS
The W25Q64FW (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 device operates on a single 1.65V to 1.95V power supply with
current consumption as low as 4mA active and 1µA for power-down. All devices are offered in space-
saving packages.
The W25Q64FW 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 (4KB sector erase), groups of 128
(32KB block erase), groups of 256 (64KB block erase) or the entire chip (chip erase). The W25Q64FW
has 4,096 erasable sectors and 256 erasable blocks respectively. The small 4KB sectors allow for greater
flexibility in applications that require data and parameter storage. (See Figure 2.)
The W25Q64FW support the standard Serial Peripheral Interface (SPI), Dual/Quad I/O SPI as well as 2-
clocks instruction cycle Quad Peripheral Interface (QPI): 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 104MHz are supported allowing
equivalent clock rates of 208MHz (104MHz x 2) for Dual I/O and 416MHz (104MHz x 4) for Quad I/O
when using the Fast Read Dual/Quad I/O and QPI 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 ID, a
64-bit Unique Serial Number and three 256-bytes Security Registers.
2. FEATURES
New Family of SpiFlash Memories
– W25Q64FW: 64M-bit / 8M-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
– More than 100,000 erase/program cycles
– 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
– 4X256-Bytes Security Registers with OTP locks
– Volatile & Non-volatile Status Register Bits
Space Efficient Packaging
– 8-pin SOIC/VSOP 208-mil
– 8-pad WSON 6x5-mm / 8x6-mm
– 16-pin SOIC 300-mil (additional /RESET pin)
– 16-ball WLBGA
– 24-ball TFBGA 8x6-mm
– Contact Winbond for KGD and other options
-5-
6 Page W25Q64FW
5. BLOCK DIAGRAM
Block Segmentation
xxFF00h
•
xxF000h
xxEF00h
•
xxE000h
xxDF00h
•
xxD000h
Sector 15 (4KB)
Sector 14 (4KB)
Sector 13 (4KB)
xxFFFFh
•
xxF0FFh
xxEFFFh
•
xxE0FFh
xxDFFFh
•
xxD0FFh
•
•
•
xx2F00h
•
xx2000h
xx1F00h
•
xx1000h
xx0F00h
•
xx0000h
Sector 2 (4KB)
Sector 1 (4KB)
Sector 0 (4KB)
xx2FFFh
•
xx20FFh
xx1FFFh
•
xx10FFh
xx0FFFh
•
xx00FFh
/WP (IO2)
Write Control
Logic
Status
Register
/HOLD (IO3)
or /RESET (IO3)
CLK
/CS
DI (IO0)
DO (IO1)
SPI
Command &
Control Logic
High Voltage
Generators
Page Address
Latch / Counter
Data
Byte Address
Latch / Counter
Security Register 3 - 0
003000h
002000h
001000h
000000h
0030FFh
0020FFh
0010FFh
0000FFh
7FFF00h
7FFFFFh
• Block 127 (64KB)
•
7F0000h
7F00FFh
•
•
•
40FF00h
• Block 64 (64KB)
400000h
3FFF00h
•
3F0000h
Block 63 (64KB)
•
•
•
20FF00h
• Block 32 (64KB)
200000h
1FFF00h
•
1F0000h
Block 31 (64KB)
•
•
•
00FF00h
•
000000h
Block 0 (64KB)
40FFFFh
•
4000FFh
3FFFFFh
•
3F00FFh
20FFFFh
•
2000FFh
1FFFFFh
•
1F00FFh
00FFFFh
•
0000FFh
Beginning
Page Address
Ending
Page Address
Column Decode
And 256-Byte Page Buffer
Figure 2. W25Q64FW Serial Flash Memory Block Diagram
- 11 -
12 Page | ||
Seiten | Gesamt 30 Seiten | |
PDF Download | [ W25Q64FW Schematic.PDF ] |
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