参数资料
型号: CAT1640WI-28-GT3
元件分类: 电源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封装: 0.150 INCH, ROHS COMPLIANT, MS-012, SOIC-8
文件页数: 3/18页
文件大小: 193K
代理商: CAT1640WI-28-GT3
11
Advance Information
CAT1640, CAT1641
Doc No. MD-3012, Rev. B
Acknowledge Polling
Disabling of the inputs can be used to take advantage of
the typical write cycle time. Once the stop condition is
issued to indicate the end of the host’s write opration, the
CAT1640/41 initiates the internal write cycle. ACK polling
can be initiated immediately. This involves issuing the
start condition followed by the slave address for a write
operation. If the device is still busy with the write operation,
no ACK will be returned. If a write operation has
completed, an ACK will be returned and the host can
then proceed with the next read or write operation.
Read Operations
The READ operation for the CAT1640/41 is initiated in
the same manner as the write operation with one
exception, that R/
W bit is set to one. Three different
READ operations are possible: Immediate/Current
Address READ, Selective/Random READ and
Sequential READ.
SCL
SDA
8TH BIT
STOP
NO ACK
DATA OUT
89
SLAVE
ADDRESS
S
A
C
K
DATA
N
O
A
C
K
S
T
O
P
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
Figure 10. Immediate Address Read Timing
相关PDF资料
PDF描述
CAT1640YI-25-GT3 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
CS2660-7PD8B1 2-OUTPUT DC-DC REG PWR SUPPLY MODULE
CS2660-7RD2B1 2-OUTPUT DC-DC REG PWR SUPPLY MODULE
CS2660-7RD8T 2-OUTPUT DC-DC REG PWR SUPPLY MODULE
CS2660-9ERD4 2-OUTPUT DC-DC REG PWR SUPPLY MODULE
相关代理商/技术参数
参数描述
CAT1640WI-28-T3 功能描述:监控电路 CPU w/64K 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
CAT1640WI-28-TE13 制造商:Catalyst Semiconductor 功能描述:
CAT1640WI30 功能描述:监控电路 CPU w/64K 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
CAT1640WI-30 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述:
CAT1640WI-30-G 功能描述:监控电路 CPU w/64K 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