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参数资料
| 型号： | S-24CS02APH-TF-G |
| 元件分类： | PROM |
| 英文描述： | 256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8 |
| 封装： | LEAD FREE, SNT-8 |
| 文件页数： | 9/47页 |
| 文件大小： | 531K |
| 代理商： | S-24CS02APH-TF-G |
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2-WIRE CMOS SERIAL E2PROM
Rev.4.5_00
S-24CS01A/02A/04A/08A
Seiko Instruments Inc.
17
7. 2 Random Read
Random read is used to read the data at an arbitrary memory address.
A dummy write is performed to load the memory address into the address counter.
When the E
2PROM receives a 7-bit device address and a 1-bit read / write instruction code set to "0"
following a start condition, it responds with an acknowledge. The E
2PROM then receives an 8-bit word
address and responds with an acknowledge. The memory address is loaded to the address counter in the
E
2PROM by these operations. Reception of write data does not follow in a dummy write whereas reception
of write data follows in a byte write and in a page write.
Since the memory address is loaded into the memory address counter by dummy write, the master device
can read the data starting from the arbitrary memory address by transmitting a new start condition and
performing the same operation in the current address read.
That is, when the E
2PROM receives a 7-bit device address and a 1-bit read / write instruction code set to
"1", following a start condition signal, it responds with an acknowledge. Next, 8-bit data is transmitted from
the E
2PROM in synchronous to the SCL clock. The master device outputs stop condition not an
acknowledge , the reading of E
2PROM is ended.
SDA
LINE
S
T
A
R
T
W
R
I
T
E
DEVICE
ADDRESS
WORD
ADDRESS (n)
M
S
B
DUMMY WRITE
S
T
A
R
T
R
E
A
D
DEVICE
ADDRESS
M
S
B
A
C
K
L
S
B
NO ACK from
Master Device
S
T
O
P
ADR INC
DATA
A
C
K
A
C
K
L
S
B
R
/
W
R
/
W
Remark1. A1 is P1 in the S-24CS08A.
2. A0 is P0 in the S-24CS04A/08A.
3. W7 is optional in the S-24CS01A.
1 0 1 0 A2 A1 A0 0
W7W6W5W4W3W2W1W0
1 0 1 0 A2 A1 A0 1
D7 D6 D5 D4 D3 D2 D1 D0
Figure 17 Random Read
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相关代理商/技术参数 |
参数描述 |
|---|---|
| S-24CS02APH-TFH-G | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:2-WIRE CMOS SERIAL E2PROM |
| S-24CS04A | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:2-WIRE CMOS SERIAL E2PROM |
| S-24CS04ADP | 功能描述:电可擦除可编程只读存储器 4K (512X8) 2-Wire 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 |
| S-24CS04ADP-G | 功能描述:电可擦除可编程只读存储器 4K (512X8) 2-Wire 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 |
| S-24CS04ADP-TB-G | 制造商:SII 制造商全称:Seiko Instruments Inc 功能描述:2-WIRE CMOS SERIAL E2PROM |
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