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参数资料
| 型号： | SST25WF080-75-4I-SAF |
| 厂商： | Microchip Technology |
| 文件页数： | 8/33页 |
| 文件大小： | 0K |
| 描述： | IC FLASH SER 8MB 75MHZ SPI 8SOIC |
| 标准包装： | 100 |
| 系列： | SST25 |
| 格式 - 存储器： | 闪存 |
| 存储器类型： | FLASH |
| 存储容量： | 8M（1M x 8） |
| 速度： | 75MHz |
| 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 |
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8 Mbit 1.8V SPI Serial Flash
A Microchip Technology Company
SST25WF080
Not Recommended for New Designs
Hold
The Hold operation enables the hold pin functionality of the RST#/HOLD# pin. Once set to hold pin
mode, the RST#/HOLD# pin continues functioning as a hold pin until the device is powered off and
then powered on. After a power-off and power-on, the pin functionality returns to a reset pin (RST#)
mode. See “Enable-Hold (EHLD)” on page 22 for detailed timing of the Hold instruction.
In the hold mode, serial sequences underway with the SPI Flash memory are paused without resetting
the clocking sequence. To activate the HOLD# mode, CE# must be in active low state. The HOLD#
mode begins when the SCK active low state coincides with the falling edge of the HOLD# signal. The
Hold mode ends when the rising edge of the HOLD# signal coincides with the SCK active low state. If
the falling edge of the HOLD# signal does not coincide with the SCK active low state, then the device
enters Hold mode when the SCK next reaches the active low state. Similarly, if the rising edge of the
HOLD# signal does not coincide with the SCK active low state, then the device exits Hold mode when
the SCK next reaches the active low state. See Figure 6 for Hold Condition waveform.
Once the device enters Hold mode, SO will be in high-impedance state while SI and SCK can be V IL or V IH.
If CE# is driven active high during a Hold condition, the device returns to standby mode. The device
can then be re-initiated with the command sequences listed in Table 6. As long as HOLD# signal is
low, the memory remains in the Hold condition. To resume communication with the device, HOLD#
must be driven active high, and CE# must be driven active low. See Figure 6 for Hold timing.
SCK
HOLD#
Active
Hold
Active
Hold
Active
1203 F05.0
Figure 6: Hold Condition Waveform
Write Protection
SST25WF080 provide software Write protection. The Write Protect pin (WP#) enables or disables the
lock-down function of the status register. The Block-Protection bits (BP3, BP2, BP1, BP0, and BPL) in
the status register provide Write protection to the memory array and the status register. See Table 5 for
the Block-Protection description.
Write Protect Pin (WP#)
The Write Protect (WP#) pin enables the lock-down function of the BPL bit (bit 7) in the status register.
When WP# is driven low, the execution of the Write-Status-Register (WRSR) instruction is determined by
the value of the BPL bit (see Table 3). When WP# is high, the lock-down function of the BPL bit is disabled.
Table 3: Conditions to execute Write-Status-Register (WRSR) Instruction
WP#
L
L
H
BPL
1
0
X
Execute WRSR Instruction
Not Allowed
Allowed
Allowed
T3.0 25024
?2012 Silicon Storage Technology, Inc.
8
DS25024B
03/12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SST25WF080-75-4I-SAF-T | 功能描述:闪存 1.65 to 1.95V 2Mbit SPI Serial 闪存 RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| SST25WF080-75-4I-ZAE | 功能描述:闪存 1.65 to 1.95V 8Mbit SPI Serial 闪存 RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
| SST25WF080-75-4I-ZAF | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:8Mbit 1.8V SPI Serial Flash |
| SST25WF512 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:512 Kbit / 1 Mbit / 2 Mbit 1.8V SPI Serial Flash |
| SST25WF512_10 | 制造商:SST 制造商全称:Silicon Storage Technology, Inc 功能描述:512 Kbit / 1 Mbit / 2 Mbit / 4Mbit 1.8V SPI Serial Flash |
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