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参数资料
| 型号： | CAT1027ZI-45-GT3 |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/19页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR CPU 2K EEPR 8MSOP |
| 标准包装： | 3,000 |
| 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： | 4.5V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
CAT1026, CAT1027
EMBEDDED EEPROM OPERATON
The CAT1026 and CAT1027 feature a 2 ? kbit embedded
serial EEPROM that supports the I 2 C Bus data transmission
protocol. This Inter ? Integrated Circuit Bus protocol defines
any device that sends data to the bus to be a transmitter and
any device receiving data to be a receiver. The transfer is
controlled by the Master device which generates the serial
clock and all START and STOP conditions for bus access.
Both the Master device and Slave device can operate as
either transmitter or receiver, but the Master device controls
which mode is activated.
I 2 C Bus Protocol
The features of the I 2 C bus protocol are defined as
follows:
1. Data transfer may be initiated only when the bus is
not busy.
2. During a data transfer, the data line must remain
stable whenever the clock line is high. Any
changes in the data line while the clock line is high
will be interpreted as a START or STOP condition.
Start Condition
The START Condition precedes all commands to the
device, and is defined as a HIGH to LOW transition of SDA
when SCL is HIGH. The CAT1026 and CAT1027 monitor
the SDA and SCL lines and will not respond until this
condition is met.
Stop Condition
A LOW to HIGH transition of SDA when SCL is HIGH
determines the STOP condition. All operations must end
with a STOP condition.
DEVICE ADDRESSING
The Master begins a transmission by sending a START
condition. The Master sends the address of the particular
slave device it is requesting. The four most significant bits
of the 8 ? bit slave address are programmable in metal and the
default is 1010.
The last bit of the slave address specifies whether a Read
or Write operation is to be performed. When this bit is set to
1, a Read operation is selected, and when set to 0, a Write
operation is selected.
After the Master sends a START condition and the slave
address byte, the CAT1026 and CAT1027 monitor the bus
and responds with an acknowledge (on the SDA line) when
its address matches the transmitted slave address. The
CAT1026 and CAT 1027 then perform a Read or Write
operation depending on the R/W bit.
SCL
tF
tLOW
tHIGH
tLOW
tR
tSU:STA
tHD:STA
tHD:DAT
tSU:DAT
tSU:STO
SDA IN
tAA
tDH
tBUF
SDA OUT
Figure 4. Bus Timing
SCL
SDA
8TH BIT
BYTE n
ACK
tWR
STOP
CONDITION
Figure 5. Write Cycle Timing
http://onsemi.com
9
START
CONDITION
ADDRESS
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT1027ZI-45-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 |
| CAT102EUK-TE7 | 功能描述:基准电压& 基准电流 600mV w/Open Colectr RoHS:否 制造商:STMicroelectronics 产品:Voltage References 拓扑结构:Shunt References 参考类型:Programmable 输出电压:1.24 V to 18 V 初始准确度:0.25 % 平均温度系数（典型值）:100 PPM / C 串联 VREF - 输入电压（最大值）: 串联 VREF - 输入电压（最小值）: 分流电流（最大值）:60 mA 最大工作温度:+ 125 C 封装 / 箱体:SOT-23-3L 封装:Reel |
| CAT102TBI-GTE7 | 功能描述:直流/直流开关转换器 600mV Adj RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| CAT102TDI-GT3 | 功能描述:直流/直流开关转换器 Prec,Adj Shunt Reg 600mV RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| CAT10-300J4 | 功能描述:电阻器网络与阵列 30ohm 5% Concave 4resistors RoHS:否 制造商:Vishay/Thin Film 产品类型:Networks 电路类型:Divider 电阻器数量: 电阻数值:10 kOhms 容差:0.1 % 温度系数: 管脚数量:3 工作温度范围:- 55 C to + 155 C 尺寸:1.02 mm W x 3.05 mm L x 1.4 mm H 引线间隔: 端接类型:SMD/SMT 封装:Reel |
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