- 您现在的位置：买卖IC网 > Sheet目录317 > CAT25020VE-GT3 (ON Semiconductor)IC EEPROM 2KB I2C SER SPI 8SOIC
CAT25010, CAT25020, CAT25040
Byte Write
Once the WEL bit is set, the user may execute a write
sequence, by sending a WRITE instruction, a 8 ? bit address
and data as shown in Figure 5. For the CAT25040, bit 3 of
the write instruction opcode contains A8 address bit.
Internal programming will start after the low to high CS
transition. During an internal write cycle, all commands,
except for RDSR (Read Status Register) will be ignored.
The RDY bit will indicate if the internal write cycle is in
progress (RDY high), or the device is ready to accept
commands (RDY low).
Page Write
After sending the first data byte to the CAT25010/20/40,
the host may continue sending data, up to a total of 16 bytes,
according to timing shown in Figure 6. After each data byte,
the lower order address bits are automatically incremented,
while the higher order address bits (page address) remain
unchanged. If during this process the end of page is
exceeded, then loading will “roll over” to the first byte in the
page, thus possibly overwriting previously loaded data.
Following completion of the write cycle, the
CAT25010/20/40 is automatically returned to the write
disable state.
CS
0
1
2
3
4
5
6
7
8
13
14 15
16
17
18 19
20
21
22 23
SCK
OPCODE
BYTE ADDRESS
DATA IN
SI
0
0
0
0
X*
0
1
0
A 7
A 0 D7 D6 D5 D4 D3 D2 D1 D0
SO
HIGH IMPEDANCE
Dashed Line = mode (1, 1)
* X = 0 for CAT25010, CAT25020. x = A8 for CAT25040
Figure 5. Byte WRITE Timing
CS
0
1
2
3
4
5
6
7
8
13
14
15 16 ? 23 24 ? 31 16+(N ? 1)x8 ? 1..16+(N ? 1)x8
SCK
16+Nx8 ? 1
OPCODE
BYTEADDRESS
DATA IN
Data Byte N
SI
0
0
0
0
X*
0
1
0
A 7
A 0
Data Data Data
Byte 1 Byte 2 Byte 3
7..1
0
SO
HIGH IMPEDANCE
Dashed Line = mode (1, 1)
* X = 0 for CAT25010, CAT25020. x = A8 for CAT25040
Figure 6. Page WRITE Timing
http://onsemi.com
7
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
CAT25128XI
IC EEPROM 128KB SPI SER 8SOIC
CAT25160HU4I-GT3
IC EEPROM SRL 16KB I2C 8UDFN
CAT25256XI-T2
IC EEPROM 256KBIT 10MHZ 8SOIC
CAT25320LI-G
IC EEPROM 32KBIT 10MHZ 8DIP
CAT25512HU5I-GT3
IC EEPROM SRL 512KB I2C 8UDFN
CAT25640HU4I-GT3
IC EEPROM SRL 64KB I2C 8UDFN
CAT25640LI-G
IC EEPROM 64KBIT 10MHZ 8DIP
CAT28C16AXI-90T
IC EEPROM 16KB PARALLEL 24SOIC
相关代理商/技术参数
CAT25020VGE-26766
制造商:Catalyst Semiconductor 功能描述:
CAT25020VGI-T3
制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述:
CAT25020VI
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
CAT25020VI-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
CAT25020VI-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
CAT25020VI-GT3JN
功能描述:电可擦除可编程只读存储器 2KB SPI SER 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
CAT25020VP2I-GT3
功能描述:电可擦除可编程只读存储器 2K-Bit SPI Serial 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
CAT25020Y
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