参数资料
型号: 25AA010AT-I/MNY
厂商: Microchip Technology
文件页数: 10/38页
文件大小: 0K
描述: IC EEPROM SER 1K 1.8V 8TDFN
标准包装: 3,300
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 1K (128 x 8)
速度: 10MHz
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-WFDFN 裸露焊盘
供应商设备封装: 8-TDFN(2x3)
包装: 带卷 (TR)
25AA010A/25LC010A
2.5
Read Status Register Instruction
( RDSR )
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, when set to a
The Read Status Register instruction ( RDSR ) provides
access to the STATUS register. See Figure 2-6 for the
RDSR timing sequence. The STATUS register may be
read at any time, even during a write cycle. The
STATUS register is formatted as follows:
‘ 0 ’, the latch prohibits writes to the array. 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.
TABLE 2-2:
STATUS REGISTER
The Block Protection (BP0 and BP1) bits indicate
which blocks are currently write-protected. These bits
7 6 5 4 3 2 1
– – – – W/R W/R R
X X X X BP1 BP0 WEL
0
R
WIP
are set by the user issuing the WRSR instruction, which
is shown in Figure 2-7. These bits are nonvolatile and
are described in more detail in Table 2-3.
W/R = writable/readable. R = read-only.
The Write-In-Process (WIP) bit indicates whether the
25XX010A 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.
FIGURE 2-6:
CS
READ STATUS REGISTER TIMING SEQUENCE ( RDSR )
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SCK
Instruction
SI
0
0
0
0
0
1
0
1
SO
High-Impedance
7
Data from STATUS Register
6 5 4 3 2
1
0
DS21832G-page 10
? 2003-2011 Microchip Technology Inc.
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25AA010ATIOT 制造商:Microchip Technology Inc 功能描述:
25AA020A 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2K SPI Bus Serial EEPROM
25AA020A/S16K 功能描述:电可擦除可编程只读存储器 2K, 256 X 8, 1.8V SER EE, DIE in WAFFLE PK 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
25AA020A/W16K 功能描述:电可擦除可编程只读存储器 2K, 256 X 8, 1.8V SER EE, WAFER 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
25AA020A/WF16K 功能描述:电可擦除可编程只读存储器 2K, 256 X 8, 1.8V SER EE, WAFER on FRAME 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