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参数资料
| 型号： | CAT25020VE-GT3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 6/18页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 2KB I2C SER SPI 8SOIC |
| 标准包装： | 3,000 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 2K (256 x 8) |
| 速度： | 10MHz |
| 接口： | SPI 3 线串行 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
CAT25010, CAT25020, CAT25040
Table 10. STATUS REGISTER
7
1
6
1
5
1
4
1
3
BP1
2
BP0
1
WEL
0
RDY
Table 11. BLOCK PROTECTIO N BITS
Status Register Bits
BP1
0
0
1
1
BP0
0
1
0
1
Array Address Protected
None
CAT25010: 060 ? 07F, CAT25020: 0C0 ? 0FF, CAT25040: 180 ? 1FF
CAT25010: 040 ? 07F, CAT25020: 080 ? 0FF, CAT25040: 100 ? 1FF
CAT25010: 000 ? 07F, CAT25020: 000 ? 0FF, CAT25040: 000 ? 1FF
Protection
No Protection
Quarter Array Protection
Half Array Protection
Full Array Protection
WRITE OPERATIONS
The CAT25010/20/40 device powers up into a write
disable state. The device contains a Write Enable Latch
(WEL) which must be set before attempting to write to the
memory array or to the status register. In addition, the
address of the memory location(s) to be written must be
outside the protected area, as defined by BP0 and BP1 bits
from the status register.
Write Enable and Write Disable
The internal Write Enable Latch and the corresponding
Status Register WEL bit are set by sending the WREN
CS
SCK
instruction to the CAT25010/20/40. Care must be taken to
take the CS input high after the WREN instruction, as
otherwise the Write Enable Latch will not be properly set.
WREN timing is illustrated in Figure 3. The WREN
instruction must be sent prior to any WRITE or WRSR
instruction.
The internal write enable latch is reset by sending the
WRDI instruction as shown in Figure 4. Disabling write
operations by resetting the WEL bit, will protect the device
against inadvertent writes.
SI
0
0
0
0
0
1
1
0
SO
Dashed Line = mode (1, 1)
HIGH IMPEDANCE
Figure 3. WREN Timing
CS
SCK
SI
0
0
0
0
0
1
0
0
SO
Dashed Line = mode (1, 1)
HIGH IMPEDANCE
Figure 4. WRDI Timing
http://onsemi.com
6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT25020VGE-26766 | 制造商:Catalyst Semiconductor 功能描述: |
| CAT25020VGI-T3 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT25020VI | 功能描述:电可擦除可编程只读存储器 (256x8) 2K 2.5-6.0 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT25020VI-G | 功能描述:电可擦除可编程只读存储器 (256x8) 2K 2.5-5.5 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| CAT25020VI-GT3 | 功能描述:电可擦除可编程只读存储器 2K-Bit SPI Serial CMOS 电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
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