参数资料
型号: W25Q64FVSFIG
厂商: Winbond Electronics
文件页数: 17/89页
文件大小: 0K
描述: IC SPI FLASH 64MBIT 16SOIC
标准包装: 44
系列: SpiFlash®
格式 - 存储器: 闪存
存储器类型: FLASH
存储容量: 64M(8M x 8)
速度: 80MHz
接口: SPI 串行
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
封装/外壳: 16-SOIC(0.295",7.50mm 宽)
供应商设备封装: 16-SOIC
包装: 管件
W25Q64FV
6.1.10
Quad Enable (QE)
The Quad Enable (QE) bit is a non-volatile read/write bit in the status register (S9) that allows Quad SPI
and QPI operation. When the QE bit is set to a 0 state (factory default for part number with ordering
options “IG” and “IF” ), the /WP pin and /HOLD are enabled. When the QE bit is set to a 1(factory default
for Quad Enabled part numbers with ordering option “IQ”) , the Quad IO2 and IO3 pins are enabled, and
/WP and /HOLD functions are disabled.
QE bit is required to be set to a 1 before issuing an “Enable QPI (38h)” to switch the device from
Standard/Dual/Quad SPI to QPI, otherwise the command will be ignored. When the device is in QPI
mode, QE bit will remain to be 1. A “Write Status Register” command in QPI mode cannot change QE bit
from a “1” to a “0”.
WARNING: If the /WP or /HOLD pins are tied directly to the power supply or ground during
standard SPI or Dual SPI operation, the QE bit should never be set to a 1.
S7
S6
S5
S4
S3
S2
S1
S0
SRP0
SEC
TB
BP2
BP1
BP0
WEL BUSY
STATUS REGISTER PROTECT 0
(non-volatile)
SECTOR PROTECT
(non-volatile)
TOP/BOTTOM PROTECT
(non-volatile)
BLOCK PROTECT BITS
(non-volatile)
WRITE ENABLE LATCH
ERASE/WRITE IN PROGRESS
Figure 4a. Status Register-1
S15
SUS
S14
CMP
S13
LB3
S12
LB2
S11
LB1
S10
(R)
S9
QE
S8
SRP1
SUSPEND STATUS
COMPLEMENT PROTECT
(non-volatile)
SECURITY REGISTER LOCK BITS
(non-volatile OTP)
RESERVED
QUAD ENABLE
(non-volatile)
STATUS REGISTER PROTECT 1
(non-volatile)
Figure 4b. Status Register-2
- 17 -
Publication Release Date:
October 07, 2013
Revision L
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