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参数资料
| 型号： | CAT25020YE-T3 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | PROM |
| 英文描述： | 256 X 8 SPI BUS SERIAL EEPROM, PDSO8 |
| 封装： | GREEN, MO-153, TSSOP-8 |
| 文件页数： | 17/17页 |
| 文件大小： | 152K |
| 代理商： | CAT25020YE-T3 |
CAT25010, CAT25020, CAT25040
2008 SCILLC. All rights reserved
9
Doc. No. MD-1006 Rev. U
Characteristics subject to change without notice
READ OPERATIONS
Read from Memory Array
To read from memory, the host sends a READ
instruction followed by a 8-bit address (for the
CAT25040, bit 3 of the read instruction opcode
contains A8 address bit).
After
receiving
the
last
address
bit,
the
CAT25010/20/40 will respond by shifting out data on
the SO pin (as shown in Figure 8). Sequentially stored
data can be read out by simply continuing to run the
clock. The internal address pointer is automatically
incremented to the next higher address as data is
shifted out. After reaching the highest memory
address, the address counter “rolls over” to the lowest
memory address, and the read cycle can be continued
indefinitely. The read operation is terminated by taking
CS
high.
Read Status Register
To read the status register, the host simply sends a
RDSR command. After receiving the last bit of the
command, the CAT25010/20/40 will shift out the
contents of the status register on the SO pin
(Figure 9). The status register may be read at any
time, including during an internal write cycle.
Figure 8. READ Timing
Notes:
Dashed Line = mode (1, 1) - - - - - -
* X = 0 for CAT25010, CAT25020. X = A8 for CAT25040
Figure 9. RDSR Timing
Note: Dashed Line = mode (1, 1) - - - - - -
01
2
3
4
5
6
78
10
911
12
13
14
SCK
SI
DATA OUT
MSB
HIGH IMPEDANCE
OPCODE
SO
7
6
5
4
3
2
1
0
CS
00
0
00
1
0
1
SCK
SI
SO
BYTE ADDRESS
01
23
456
78
9
D7 D6 D5 D4 D3 D2
D1 D0
CS
DATA OUT
MSB
HIGH IMPEDANCE
A0
OPCODE
13
12
14
15
16
17
18
19
20
21
22
00
X*
0
11
A7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT25020YGI | 制造商:Catalyst Semiconductor 功能描述: |
| CAT25020YI | 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 |
| CAT25020YI-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 |
| CAT25020YI-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 |
| CAT25020Z | 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 |
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