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参数资料
| 型号： | CAT1023WI-25 |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO8 |
| 封装： | 0.150 INCH, HALOGEN FREE AND ROHS COMPLIANT, MS-012, SOIC-8 |
| 文件页数： | 2/21页 |
| 文件大小： | 307K |
| 代理商： | CAT1023WI-25 |
CAT1021, CAT1022, CAT1023
Doc. No. 3009 Rev. L
10
2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
ACKNOWLEDGE
After a successful data transfer, each receiving
device is required to generate an acknowledge. The
acknowledging device pulls down the SDA line
during the ninth clock cycle, signaling that it received
the 8 bits of data.
All devices respond with an acknowledge after
receiving a START condition and its slave address.
If the device has been selected along with a write
operation, it responds with an acknowledge after
receiving each 8-bit byte.
When a device begins a READ mode it transmits 8
bits of data, releases the SDA line and monitors the
line for an acknowledge. Once it receives this
acknowledge, the device will continue to transmit
data. If no acknowledge is sent by the Master, the
device terminates data transmission and waits for a
STOP condition.
WRITE OPERATIONS
Byte Write
In the Byte Write mode, the Master device sends the
START condition and the slave address information
(with the R/W
bit set to zero) to the Slave device. After
the Slave generates an acknowledge, the Master sends
a 8-bit address that is to be written into the address
pointers of the device. After receiving another acknow-
ledge from the Slave, the Master device transmits the
data to be written into the addressed memory location.
The device acknowledges once more and the Master
generates the STOP condition. At this time, the device
begins an internal programming cycle to non-volatile
memory. While the cycle is in progress, the device will
not respond to any request from the Master device.
Figure 5. Start/Stop Timing
Figure 6. Acknowledge Timing
Figure 7: Slave Address Bits
START BIT
SDA
STOP BIT
SCL
ACKNOWLEDGE
1
START
SCL FROM
MASTER
89
DATA OUTPUT
FROM TRANSMITTER
DATA OUTPUT
FROM RECEIVER
1
01
0
R/W
Default Configuration
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT1023WI-25-A2 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT1023WI-25-G | 功能描述:监控电路 CPU w/2K RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| CAT1023WI-25-GT2 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer |
| CAT1023WI-25-GT3 | 功能描述:监控电路 CPU SUP W/2K EEPROM RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| CAT1023WI-25T2 | 制造商:CATALYST 制造商全称:Catalyst Semiconductor 功能描述:Supervisory Circuits with I2C Serial 2k-bit CMOS EEPROM, Manual Reset and Watchdog Timer |
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