参数资料
| 型号： | BR25L020FVT-WE2 |
| 厂商： | Rohm Semiconductor |
| 文件页数： | 9/17页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 2KBIT 5MHZ 8TSSOP |
| 标准包装： | 1 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 2K (256 x 8) |
| 速度： | 5MHz |
| 接口： | SPI 3 线串行 |
| 电源电压： | 1.8 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP-B |
| 包装： | 标准包装 |
| 产品目录页面： | 1379 (CN2011-ZH PDF) |
| 其它名称： | BR25L020FVT-WE2DKR |
BR25L010-W, BR25L020-W, BR25L040-W, BR25L080-W, BR25L160-W, BR25L320-W, BR25L640-W
4. Status register write / read command
CS
Technical Note
SCK
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
SI
0
0
0
0
*
0
0
1
*
*
*
*
BP1 BP0
*
*
SO
High-Z
* =Don't care
Fig.41 Status register write command (BR25L010/020/040-W)
CS
SCK
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
SI
0
0
0
0
0
0
0
1
WPEN
*
*
*
BP1 BP0
*
*
SO
High-Z
* =Don't care
Fig.42 Status register write command (BR25L080/160/320/640-W)
Write status register command can write status register data. The data the can be written by this command are 2 bits *1,
that is, BP1 (bit3) and BP0 (bit2) among 8 bits of status register. By BP1 and BP0, write disable block of EEPROM can be
set. As for this command, set CS LOW, and input ope code of write status register, and input data. Then, by making CS
HIGH, EEPROM starts writing. Write time requires time of tE/W as same as write. As for CS rise, start CS after taking the
last data bit (bit0), and before the next SCK clock starts. At other timing, command is cancelled. Write disable block is
determined by BP1 and BP0, and the block can be selected from 1/4 of memory array, 1/2, and entire memory array.
(Refer to the write disable block setting table.) To the write disabled block, write cannot be made, and only read can be
made.
* 3 bits including BR25L080, 160, 320, 640-W WPEN (bit7)
CS
SCK
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SI
SO
0
High-Z
0
0
0
*
1
0
1
bit7
1
bit6
1
bit5
1
bit4
1
bit3
bit2
bit1
bit0
BP1 BP0 WEN R/B
* =Don't care
Fig.43 Status register read command (BR25L010/020/040-W)
CS
SCK
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SI
SO
0
High-Z
0
0
0
0
1
0
1
bit7
WPEN
bit6
0
bit5
0
bit4
0
bit3
bit2
bit1
BP1 BP0 WEN
bit0
R/B
Fig.44 Status register read command (BR25L080/160/320/640-W)
www.rohm.com
? 2010 ROHM Co., Ltd. All rights reserved.
9/16
2010.07 - Rev. B
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相关代理商/技术参数 |
参数描述 |
|---|---|
| BR25L020FV-W | 制造商:ROHM 制造商全称:Rohm 功能描述:SPI BUS 2Kbit (256 x 8bit) EEPROM |
| BR25L020FV-WE2 | 功能描述:电可擦除可编程只读存储器 SPI 2K BIT 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 |
| BR25L020F-W | 制造商:ROHM 制造商全称:Rohm 功能描述:SPI BUS 2Kbit (256 x 8bit) EEPROM |
| BR25L020FWE2 | 制造商:ROHM Semiconductor 功能描述:EEPROM,SPI BUS,2kb,x8,SOP8 |
| BR25L020F-WE2 | 功能描述:电可擦除可编程只读存储器 SPI 2K BIT 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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