参数资料
型号: DS1307N
厂商: Maxim Integrated Products
文件页数: 3/14页
文件大小: 0K
描述: IC RTC SERIAL 512K IND 8-DIP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
类型: 时钟/日历
特点: 闰年,NVSRAM,方波输出
存储容量: 56B
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: 4.5 V ~ 5.5 V
电压 - 电源,电池: 2 V ~ 3.5 V
工作温度: -40°C ~ 85°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
DS1307 64 x 8, Serial, I2C Real-Time Clock
11 of 14
Figure 3. Data Transfer on I2C Serial Bus
Depending upon the state of the R/
W bit, two types of data transfer are possible:
1.
Data transfer from a master transmitter to a slave receiver. The first byte transmitted by the master is the
slave address. Next follows a number of data bytes. The slave returns an acknowledge bit after each received
byte. Data is transferred with the most significant bit (MSB) first.
2.
Data transfer from a slave transmitter to a master receiver. The first byte (the slave address) is transmitted
by the master. The slave then returns an acknowledge bit. This is followed by the slave transmitting a number
of data bytes. The master returns an acknowledge bit after all received bytes other than the last byte. At the
end of the last received byte, a “not acknowledge” is returned.
The master device generates all the serial clock pulses and the START and STOP conditions. A transfer is
ended with a STOP condition or with a repeated START condition. Since a repeated START condition is also
the beginning of the next serial transfer, the bus will not be released. Data is transferred with the most
significant bit (MSB) first.
ACKNOWLEDGEMENT
SIGNAL FROM RECEIVER
ACKNOWLEDGEMENT
SIGNAL FROM RECEIVER
R/W
DIRECTION
BIT
REPEATED IF MORE BYTES
ARE TRANSFERED
START
CONDITION
STOP
CONDITION
OR
REPEATED
START
CONDITION
MSB
1
2
6
7
8
9
1
2
3-7
8
9
ACK
SDA
SCL
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