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DS32X35 PDF预览

DS32X35

更新时间: 2024-02-22 01:43:27
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美信 - MAXIM 晶体石英晶振温度补偿晶振
页数 文件大小 规格书
21页 279K
描述
Accurate I2C RTC with Integrated TCXO/Crystal/FRAM

DS32X35 数据手册

 浏览型号DS32X35的Datasheet PDF文件第14页浏览型号DS32X35的Datasheet PDF文件第15页浏览型号DS32X35的Datasheet PDF文件第16页浏览型号DS32X35的Datasheet PDF文件第18页浏览型号DS32X35的Datasheet PDF文件第19页浏览型号DS32X35的Datasheet PDF文件第20页 
2
Accurate I C RTC with Integrated  
TCXO/Crystal/FRAM  
DS2x35  
SDA  
SCL  
t
BUF  
t
SP  
t
HD:STA  
t
LOW  
t
t
F
R
t
SU:STA  
t
HD:STA  
t
HIGH  
t
SU:STO  
t
REPEATED  
START  
SU:DAT  
STOP  
START  
t
HD:DAT  
2
Figure 1. Data Transfer on I C Serial Bus  
SDA  
MSB  
SLAVE ADDRESS  
R/W  
DIRECTION  
BIT  
ACKNOWLEDGEMENT  
SIGNAL FROM RECEIVER  
ACKNOWLEDGEMENT  
SIGNAL FROM RECEIVER  
SCL  
1
2
6
7
8
9
1
2
3–7  
8
9
ACK  
ACK  
START  
CONDITION  
STOP  
CONDITION  
OR REPEATED  
START  
CONDITION  
REPEATED IF MORE BYTES  
ARE TRANSFERED  
2
Figure 2. I C Data Transfer Overview  
2
input and open-drain SDA I/O lines. Within the bus  
specifications, a standard mode (100kHz maximum  
clock rate) and a fast mode (400kHz maximum clock  
rate) are defined. The DS32x35 works in both modes.  
I C Serial Data Bus  
2
The DS32x35 supports a bidirectional I C bus and data  
transmission protocol (Figure 1). A device that sends  
data onto the bus is defined as a transmitter, and a  
device receiving data is defined as a receiver. The  
device that controls the message is called a master.  
The devices that are controlled by the master are  
slaves. The bus must be controlled by a master device  
that generates the serial clock (SCL), controls the bus  
access, and generates the START and STOP condi-  
The following bus protocol has been defined (Figure 2):  
• Data transfer can be initiated only when the bus is  
not busy.  
• During data transfer, the data line must remain stable  
whenever the clock line is high. Changes in the data  
line while the clock line is high are interpreted as  
control signals.  
2
tions. The DS32x35 operates as a slave on the I C bus.  
Connections to the bus are made through the SCL  
____________________________________________________________________ 17  

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