参数资料
型号: W25Q16VSFIG
厂商: Winbond Electronics
文件页数: 13/60页
文件大小: 0K
描述: IC FLASH 16MBIT 80MHZ 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: 16M(2M 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
W25Q16V
10.1.6 Status Register Protect (SRP1, SRP0)
The Status Register Protect bits (SRP1 and SRP0) are non-volatile read/write bits in the status register
(S8 and S7). The SRP bits control the method of write protection: software protection, hardware
protection, power supply lock-down or one time programmable (OTP) protection.
SRP1
0
0
0
1
1
SRP0
0
1
1
0
1
/WP
X
0
1
X
X
Status
Register
Software
Protection
Hardware
Protected
Hardware
Unprotected
Power Supply
Lock-Down (1)
One Time
Program (1)
Description
/WP pin has no control. The Status register can be written to
after a Write Enable instruction, WEL=1. [Factory Default]
When /WP pin is low the Status Register locked and can not
be written to.
When /WP pin is high the Status register is unlocked and can
be written to after a Write Enable instruction, WEL=1.
Status Register is protected and can not be written to again
until the next power-down, power-up cycle. (2)
Status Register is permanently protected and can not be
written to.
Note:
1. These features are available upon special order. Please contact Winbond for details.
2. When SRP1, SRP0 = (1, 0), a power-down, power-up cycle will change SRP1, SRP0 to (0, 0) state.
10.1.7 Quad Enable (QE)
The Quad Enable (QE) bit is a non-volatile read/write bit in the status register (S9) that allows Quad
operation. When the QE bit is set to a 0 state (factory default) the /WP pin and /Hold are enabled. When
the QE pin 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.
Publication Release Date: October 7, 2009
- 13 -
Revision E
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