DS1307 64 x 8, Serial, I2C Real-Time Clock 11 of 14 Figure 3. D" />
參數(shù)資料
型號(hào): DS1307ZN+T&R/C02
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 3/14頁(yè)
文件大小: 0K
描述: IC RTC SERIAL IND 8-SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
類型: 時(shí)鐘/日歷
特點(diǎn): 閏年,NVSRAM,方波輸出
存儲(chǔ)容量: 56B
時(shí)間格式: HH:MM:SS(12/24 小時(shí))
數(shù)據(jù)格式: YY-MM-DD-dd
接口: I²C,2 線串口
電源電壓: 4.5 V ~ 5.5 V
電壓 - 電源,電池: 2 V ~ 3.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
其它名稱: 90-1307Z+C02
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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