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参数资料
| 型号： | LE25CA322TT |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | PROM |
| 英文描述： | 4K X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封装： | 0.150 INCH, MSOP-8 |
| 文件页数： | 14/14页 |
| 文件大小： | 217K |
| 代理商： | LE25CA322TT |
LE25CA322
No.NA1678-9/14
2. Status Registers
The status registers read the operating and setting statuses inside the device from outside (status register read) and set
the protect information (status register write). There are 8 bits in total, and “Table 2 Status Registers” gives the
significance of each bit.
Table 2 Status Registers
Bit
Name
Logic
Function
Power-on time
Information
0
Ready
Bit0
RDY
1
Busy (in write operation)
0
Write disabled
Bit1
WEN
1
Write enabled
0
Bit2
BP0
1
Nonvolatile
information
0
Bit3
BP1
1
Block protect information
See status register description on BP0 and BP1
Nonvolatile
information
Bit4
×
0
Reserved bit
0
Bit5
×
0
Reserved bit
0
Bit6
×
0
Reserved bit
0
Status register write enabled
Bit7
SRWP
1
Status register write disabled
Nonvolatile
information
2-1. Status Register Read (RDSR)
The contents of the status registers can be read using the status register read command. This command can be executed
even during write operation.
“Figure 5 Status Register READ” shows the timing waveforms of status register read. Consisting only of the first bus
cycle, the status register command outputs the contents of the status registers synchronized to the falling edge of the
clock (SCK) with which the eighth bit of (05h) has been input. In terms of the output sequence, SRWP (bit7) is the first
to be output, and each time one clock is input, all the other bits up to RDY (bit0) are output in sequence, synchronized
to the falling clock edge. If the clock input is continued after RDY (bit0) has been output, the data is output by returning
to the bit (SRWP) that was first output, after which the output is repeated as long as the clock input is continued. The
data can be read by the status register read command at any time.
Figure 5 Status Register Read
CS
SCK
SI
SO
0
Mode3
8CLK
Hight Impedance
Status Register Out
7 6
5 4 3
2107
05h
Mode0
12345
6 78
9 10 11 12 13 14 15
(00000101)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LE25CB1282 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:EEPROM (SPI Bus) |
| LE25CB1282M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Serial SPI EEPROM (SPI Bus)(128Kbit) |
| LE25CB5122M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Serial SPI EEPROM (SPI Bus)(512Kbit) |
| LE25CB5122M-TLM-E | 制造商:Sony Semiconductor Solutions Division 功能描述: |
| LE25CB643M-TLM-E | 功能描述: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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