Datasheet > 微控制器和处理器 > 计时器或实时时钟> DS1307N

DS1307N

更新时间： 2024-02-13 01:08:56

品牌	Logo	应用领域
达拉斯 - DALLAS		时钟
页数	文件大小	规格书
14页	225K
描述
64 X 8 Serial Real Time Clock

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技术参数
数据手册

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DS1307N 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	SOP, SOP8,.25	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8473.30.11.80	Factory Lead Time：	6 weeks
风险等级：	0.66	Samacsys Confidence：	3
Samacsys Status：	Released	2D Presentation：	https://componentsearchengine.com/2D/0T/232132.1.2.png
Schematic Symbol：	https://componentsearchengine.com/symbol.php?partID=232132	PCB Footprint：	https://componentsearchengine.com/footprint.php?partID=232132
3D View：	https://componentsearchengine.com/viewer/3D.php?partID=232132	Samacsys PartID：	232132
Samacsys Image：	https://componentsearchengine.com/Images/9/DS1307ZN+T &R.jpg	Samacsys Thumbnail Image：	https://componentsearchengine.com/Thumbnails/1/DS1307ZN+T &R.jpg
Samacsys Pin Count：	8	Samacsys Part Category：	Integrated Circuit
Samacsys Package Category：	Small Outline Packages	Samacsys Footprint Name：	21-0041
Samacsys Released Date：	2015-11-27 03:38:06	Is Samacsys：	N
最大时钟频率：	0.032 MHz	信息访问方法：	I2C
中断能力：	N	JESD-30 代码：	R-PDSO-G8
JESD-609代码：	e3	长度：	4.9 mm
湿度敏感等级：	1	端子数量：	8
计时器数量：	1	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装等效代码：	SOP8,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
峰值回流温度（摄氏度）：	260	电源：	5 V
认证状态：	Not Qualified	座面最大高度：	1.75 mm
子类别：	Timer or RTC	最大供电电压：	5.5 V
最小供电电压：	4.5 V	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	最短时间：	SECONDS
处于峰值回流温度下的最长时间：	NOT SPECIFIED	易失性：	YES
宽度：	3.9 mm	uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK
Base Number Matches：	1

DS1307N 数据手册

DS1307/1308

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 of 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.

The DS1307/DS1308 may operate in the following two modes:

1. Slave receiver mode (DS1307/DS1308 write mode): Serial data and clock are received through

SDA and SCL. After each byte is received an acknowledge bit is transmitted. START and STOP

conditions are recognized as the beginning and end of a serial transfer. Address recognition is

performed by hardware after reception of the slave address and *direction bit (See Figure 6). The

address byte is the first byte received after the start condition is generated by the master. The address

byte contains the 7 bit DS1307/DS1308 address, which is 1101000, followed by the *direction bit

(R/ W ) which, for a write, is a 0. After receiving and decoding the address byte the device outputs an

acknowledge on the SDA line. After the DS1307/DS1308 acknowledges the slave address + write

bit, the master transmits a register address to the DS1307/DS1308 This will set the register pointer on

the DS1307/DS1308. The master will then begin transmitting each byte of data with the

DS1307/DS1308 acknowledging each byte received. The master will generate a stop condition to

terminate the data write.

DATA WRITE - SLAVE RECEIVER MODE Figure 6

2. Slave transmitter mode (DS1307/DS1308 read mode): The first byte is received and handled as in

the slave receiver mode. However, in this mode, the *direction bit will indicate that the transfer

direction is reversed. Serial data is transmitted on SDA by the DS1307/DS1308 while the serial clock

is input on SCL. START and STOP conditions are recognized as the beginning and end of a serial

transfer (See Figure 7). The address byte is the first byte received after the start condition is

generated by the master. The address byte contains the 7-bit DS1307/DS1308 address, which is

1101000, followed by the *direction bit (R/ W ) which, for a read, is a 1. After receiving and

decoding the address byte the device inputs an acknowledge on the SDA line. The DS1307/DS1308

then begins to transmit data starting with the register address pointed to by the register pointer. If the

last one stored in the register pointer. The DS1307/DS1308 must receive a Not Acknowledge to end

a read.

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DS1307N+	MAXIM	64 x 8, Serial, I2C Real-Time Clock	获取价格
DS1307Z	DALLAS	64 X 8 Serial Real Time Clock	获取价格
DS1307Z	MAXIM	64 x 8, Serial, I2C Real-Time Clock	获取价格
DS1307Z/T&R	MAXIM	Real Time Clock, Volatile, 1 Timer(s), CMOS, PDSO8, 0.150 INCH, SOIC-8	获取价格
DS1307Z/T&R	MAXIM	64 x 8, Serial, I2C Real-Time Clock	获取价格
DS1307Z/TR	MAXIM	64 x 8, Serial, I2C Real-Time Clock	获取价格

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