参数资料
| 型号： | ISL12057IUZ |
| 厂商： | Intersil |
| 文件页数： | 4/17页 |
| 文件大小： | 0K |
| 描述： | IC RTC/CALENDAR I2C 8-MSOP |
| 标准包装： | 50 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，闰年 |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.8 V ~ 3.6 V |
| 电压 - 电源，电池： | 1.4 V ~ 1.8 V |
| 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： | 管件 |
12
FN6755.1
March 3, 2011
onto the bus as a transmitter and the receiving device as the
receiver. The device controlling the transfer is the master,
and the device being controlled is the slave. The master
device always initiates data transfers and provides the clock
for both transmit and receive operations. Therefore, the
ISL12057 operates as a slave device in all applications.
All communication over the I2C interface is conducted by
sending the MSB of each byte of data first.
Protocol Conventions
Data states on the SDA line can change only during SCL
LOW periods. SDA state changes during SCL HIGH are
reserved for indicating START and STOP conditions (see
Figure 7). On power-up of the ISL12057, the SDA pin is in
the input mode.
All I2C interface operations must begin with a START
condition, which is a HIGH to LOW transition of SDA while
SCL is HIGH. The ISL12057 continuously monitors the SDA
and SCL lines for the START condition and does not
respond to any command until this condition is met (see
Figure 7). A START condition is ignored during the power-up
sequence.
All I2C interface operations must be terminated by a STOP
condition, which is a LOW to HIGH transition of SDA while
SCL is HIGH (see Figure 7). A STOP condition at the end of
a read operation or at the end of a write operation to memory
only places the device in its standby mode.
An acknowledge (ACK) is a software convention used to
indicate a successful data transfer. The transmitting device,
either master or slave, releases the SDA bus after
transmitting 8 bits. During the ninth clock cycle, the receiver
pulls the SDA line LOW to acknowledge reception of the 8
bits of data (see Figure 8).
The ISL12057 responds with an ACK after recognition of a
START condition followed by a valid Identification Byte, and
once again after successful receipt of an Address Byte. The
ISL12057 also responds with an ACK after receiving a Data
Byte of a write operation. The master must respond with an
ACK after receiving a Data Byte of a read operation.
FIGURE 7. VALID DATA CHANGES, START, AND STOP CONDITIONS
FIGURE 8. ACKNOWLEDGE RESPONSE FROM RECEIVER
SDA
SCL
START
DATA
STOP
STABLE
CHANGE
DATA
STABLE
SDA OUTPUT FROM
TRANSMITTER
SDA OUTPUT FROM
RECEIVER
8
1
9
START
ACK
SCL FROM
MASTER
HIGH IMPEDANCE
ISL12057
相关PDF资料 |
PDF描述 |
|---|---|
| ISL12058IUZ | IC RTC/CALENDAR I2C-BUS 8-MSOP |
| ISL12059IBZ | IC RTC/CALENDAR I2C-BUS 8-SOIC |
| ISL12082IUZ | IC RTC I2C LO-POWER 10-MSOP |
| ISL1208IU8-TK | IC RTC/CALENDAR I2C 8-MSOP |
| ISL1209IU10-TK | IC RTC/CALENDAR I2C 10-MSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL12057IUZ-T | 功能描述:实时时钟 REAL TIME CLK W/ ALARM DS1337 COMP RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| ISL12058 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Low Cost and Low Power I2C-Bus? Real Time Clock/Calendar |
| ISL12058IBZ | 功能描述:实时时钟 REAL TIME CLK W/ ALARM & TIMR FUNCTNS RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| ISL12058IBZ-T | 功能描述:实时时钟 REAL TIME CLK W/ ALARM & TIMR FUNCTNS RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| ISL12058IRTZ | 功能描述:实时时钟 REAL TIME CLK W/ ALARM & TIMR FUNCTNS RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
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