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| 型號(hào)： | 25LC080AP |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 8K SPI Bus Serial EEPROM |
| 中文描述： | 8K的SPI總線串行EEPROM |
| 文件頁(yè)數(shù)： | 10/24頁(yè) |
| 文件大?。?/td> | 523K |
| 代理商： | 25LC080AP |
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25XX080A/B
DS21808B-page 10
2003 Microchip Technology Inc.
2.5
Read Status Register Instruction
(
RDSR
)
The Read Status Register instruction (
RDSR
) provides
access to the Status Register. The Status Register may
be read at any time, even during a write cycle. The
Status Register is formatted as follows:
TABLE 2-2:
STATUS REGISTER
The
Write-In-Process (WIP)
bit indicates whether the
25XX080A/B is busy with a write operation. When set
to a ‘
1
’, a write is in progress, when set to a ‘
0
’, no write
is in progress. This bit is read-only.
The
Write Enable Latch (WEL)
bit indicates the status
of the write enable latch and is read only. When set to
a ‘
1
’, the latch allows writes to the array or the Status
Register, when set to a ‘
0
’, the latch prohibits writes to
the array or the Status Register. The state of this bit can
always be updated via the
WREN
or
WRDI
commands
regardless of the state of write protection on the Status
Register. These commands are shown in Figure 2-4
and Figure 2-5.
The
Block Protection (BP0 and BP1)
bits indicate
which blocks are currently write-protected. These bits
are set by the user issuing the
WRSR
instruction, which
is in Figure 2-7. These bits are nonvolatile and are
shown in Table 2-3.
See Figure 2-6 for the
RDSR
timing sequence.
FIGURE 2-6:
READ STATUS REGISTER TIMING SEQUENCE (
RDSR
)
7
6
5
4
3
2
1
0
W/R
–
–
–
W/R
W/R
R
R
WPEN
X
X
X
BP1
BP0
WEL
WIP
W/R = writable/readable. R = read-only.
SO
SI
CS
9
10
11
12
13
14
15
1
1
0
0
0
0
0
0
7
6
5
4
2
1
0
instruction
data from Status Register
high-impedance
SCK
0
2
3
4
5
6
7
1
8
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 25LC080ASN | 8K SPI Bus Serial EEPROM |
| 25LC080AST | 8K SPI Bus Serial EEPROM |
| 25LC080BMS | 8K SPI Bus Serial EEPROM |
| 25LC080BP | 8K SPI Bus Serial EEPROM |
| 25LC080BSN | 8K SPI Bus Serial EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 25LC080ASN | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8K SPI Bus Serial EEPROM |
| 25LC080AST | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8K SPI Bus Serial EEPROM |
| 25LC080AT-E/MS | 功能描述:電可擦除可編程只讀存儲(chǔ)器 1kx8 16B - 2.5V RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 25LC080AT-E/MSG | 功能描述:電可擦除可編程只讀存儲(chǔ)器 1kx8 - 2.5V 16B Extended Temp RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 25LC080AT-E/P | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:8K SPI Bus Serial EEPROM |
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