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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： | 7/47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.
15
6. 3 Write Protection
Write protection is available in the S-24CS01A/02A/04A/08A. When the WP pin is connected to the VCC,
write operation to memory area is forbidden at all.
When the WP pin is connected to the GND, the write protection is invalid, and write operation in all
memory area is available.
Fix the level of the WP pin from the rising edge of SCL for loading the last write data (D0) until the end of
the write time (10 ms max.). If the WP pin changes during this time, the address data being written at this
time is not guaranteed.
There is no need for using write protection, the WP pin should be connected to the GND. The write
protection is valid in the operating voltage range.
SDA
WP
SCL
Acknowledge
WP Pin Fixed Period
Stop
Condition
Start
Condition
Write Data
tWR
D0
Figure 15 WP Pin Fixed Period
6. 4 Acknowledge Polling
Acknowledge polling is used to know the completion of the write cycle in the E
2PROM.
After the E
2PROM receives a stop condition and once starts the write cycle, all operations are forbidden
and no response is made to the signal transmitted by the master device.
Accordingly the master device can recognize the completion of the write cycle in the E
2PROM by
detecting a response from the slave device after transmitting the start condition, the device address and
the read/write instruction code to the E
2PROM, namely to the slave devices.
That is, if the E
2PROM does not generate an acknowledge, the write cycle is in progress and if the
E
2PROM generates an acknowledge, the write cycle has been completed.
Keep the level of the WP pin fixed until acknowledge is confirmed.
It is recommended to use the read instruction "1" as the read/write instruction code transmitted by the
master device.
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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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