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参数资料
| 型号： | CAT1027WI-28-T3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 11/19页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR W/MEM 2.85V 8SOIC |
| 标准包装： | 1 |
| 类型： | 多压监控器 |
| 监视电压数目： | 2 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 130 ms |
| 电压 - 阀值： | 2.85V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 标准包装 |
| 产品目录页面： | 806 (CN2011-ZH PDF) |
| 其它名称： | CAT1027WI-28-T3DKR |
CAT1026, CAT1027
Page Write
The CAT1026 and CAT1027 write up to 16 bytes of data
in a single write cycle, using the Page Write operation. The
page write operation is initiated in the same manner as the
byte write operation, however instead of terminating after
the initial byte is transmitted, the Master is allowed to send
up to 15 additional bytes. After each byte has been
transmitted, the CAT1026 and CAT1027 will respond with
an acknowledge and internally increment the lower order
address bits by one. The high order bits remain unchanged.
S
T
If the Master transmits more than 16 bytes before sending
the STOP condition, the address counter ‘wraps around’,
and previously transmitted data will be overwritten.
When all 16 bytes are received, and the STOP condition
has been sent by the Master, the internal programming cycle
begins. At this point, all received data is written to the
CAT1026 and CAT1027 in a single write cycle.
S
BUS ACTIVITY:
MASTER
A
R
T
SLAVE
ADDRESS
BYTE
ADDRESS
DATA
T
O
P
SDA LINE
S
P
A
C
K
A
C
K
A
C
K
Figure 9. Byte Write Timing
S
T
S
BUS ACTIVITY:
MASTER
A
R
T
SLAVE
ADDRESS
BYTE
ADDRESS (n)
DATA?n
DATA n+1
T
DATA n+15 O
P
SDA LINE
S
P
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
Figure 10. Page Write Timing
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 operation, the
CAT1026 and CAT1027 initiate 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 CAT1026 and CAT1027 is
initiated in the same manner as the write operation with one
operations are possible: Immediate/Current Address
READ, Selective/Random READ and Sequential READ.
exception, the R/W bit is set to one. Three different READ
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT1027WI30 | 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 |
| CAT1027WI-30 | 制造商:ON Semiconductor 功能描述:SUPERVISORY CCT 2K E2 SMD 1027 |
| CAT1027WI-30-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 |
| CAT1027WI-30-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 |
| CAT1027WI-30-T3 | 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 |
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