参数资料
型号: W25Q40BWSNIG
厂商: Winbond Electronics
文件页数: 13/73页
文件大小: 0K
描述: IC FLASH SPI 4MBIT 8SOIC
标准包装: 100
系列: SpiFlash®
格式 - 存储器: 闪存
存储器类型: FLASH
存储容量: 4M (512K x 8)
速度: 80MHz
接口: SPI 串行
电源电压: 1.65 V ~ 1.95 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 管件
W25Q40BW
8.1.10
Quad Enable (QE)
The Quad Enable (QE) bit is a non-volatile read/write bit in the status register (S9) that allows Quad SPI
operation. When the QE bit is set to a 0 state (factory default), the /WP pin and /HOLD are enabled.
When the QE bit is set to a 1, the Quad IO2 and IO3 pins are enabled.
WARNING: The QE bit should never be set to a 1 during standard SPI or Dual SPI operation if the
/WP or /HOLD pins are tied directly to the power supply or ground.
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 3a. Status Register-1
S15
SUS
S14
CMP
S13
LB3
S12
LB2
S11
LB1
S10
LB0
S9
QE
S8
SRP1
SUSPEND STATUS
COMPLEMENT PROTECT
(non-volatile)
SECURITY REGISTER LOCK BITS
(non-volatile OTP)
QUAD ENABLE
(non-volatile)
STATUS REGISTER PROTECT 1
(non-volatile)
Figure 3b. Status Register-2
Publication Release Date: October 11, 2013
- 13 -
Revision F
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