参数资料
| 型号： | DS1339U-3+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/20页 |
| 文件大小： | 0K |
| 描述： | IC RTC I2C W/ALARM 8-USOP |
| 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： | 警报器，闰年，方波输出，涓流充电器 |
| 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： | 2.7 V ~ 3.3 V |
| 电压 - 电源，电池： | 1.3 V ~ 3.7 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-uMAX |
| 包装： | 管件 |
| 产品目录页面： | 1433 (CN2011-ZH PDF) |
DS1339 I
2C Serial Real-Time Clock
18 of 20
sets the register pointer on the DS1339, with the DS1339 acknowledging the transfer. The master may
then transmit zero or more bytes of data, with the DS1339 acknowledging each byte received. The
address pointer increments after each data byte is transferred. The master generates a STOP condition to
terminate the data write.
2) Slave Transmitter Mode (Read Mode): The first byte is received and handled as in the slave receiver
mode. However, in this mode, the direction bit indicates that the transfer direction is reversed. Serial data
is transmitted on SDA by the DS1339 while the serial clock is input on SCL. START and STOP conditions
are recognized as the beginning and end of a serial transfer (Figure 8). The slave address byte is the first
byte received after the START condition is generated by the master. The slave address byte contains the
7-bit DS1339 address, which is 1101000, followed by the direction bit (R/
W), which is 1 for a read. After
receiving and decoding the slave address byte the slave outputs an acknowledge on the SDA line. The
DS1339 then begins to transmit data starting with the register address pointed to by the register pointer. If
the register pointer is not written to before the initiation of a read mode the first address that is read is the
last one stored in the register pointer. The address pointer is incremented after each byte is transferred.
The DS1339 must receive a “not acknowledge” to end a read.
Figure 7. Data Write—Slave Receiver Mode
Figure 8. Data Read (from Current Pointer Location)—Slave Transmitter Mode
Figure 9. Data Read (Write Pointer, Then Read)—Slave Receive and Transmit
...
A
XXXXXXXX
A
S
0
XXXXXXXX
A
XXXXXXXX
A
XXXXXXXX
A P
S - Start
A - Acknowledge (ACK)
P - Stop
<R
/W
>
DATA TRANSFERRED
(X+1 BYTES + ACKNOWLEDGE)
1101000
<Slave Address>
<Word Address (n)>
<Data(n)>
<Data(n+1)>
<Data(n+X)>
Master to slave
Slave to master
...
A
XXXXXXXX
A
1101000
S
1
XXXXXXXX
A XXXXXXXX
XXXXXXXX
A P
<Data(n+2)>
<Data(n+X)>
A
S - Start
A - Acknowledge (ACK)
P - Stop
A - Not Acknowledge (NACK)
<R
W
>
DATA TRANSFERRED
(X+1 BYTES + ACKNOWLEDGE)
NOTE: LAST DATA BYTE IS FOLLOWED BY A NACK
<Slave Address>
<Data(n)>
<Data(n+1)>
Master to slave
Slave to master
...
A
XXXXXXXX
A
XXXXXXXX
A
XXXXXXXX
A P
S - Start
Sr - Repeated Start
A - Acknowledge (ACK)
P - Stop
A - Not Acknowledge (NACK)
DATA TRANSFERRED
(X+1 BYTES + ACKNOWLEDGE)
NOTE: LAST DATA BYTE IS FOLLOWED BY A NACK
A
XXXXXXXX
A
1101000
S
0
<R
W
>
<Word Address (n)>
A
1101000
Sr
1
<R
W
>
<Slave Address>
<Data(n)>
<Data(n+1)>
<Data(n+2)>
<Data(n+X)>
Master to slave
Slave to master
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1339U-3/T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 8USOP - Tape and Reel |
| DS1339U-3+ | 功能描述:实时时钟 I2C Serial RTC 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 |
| DS1339U-3+T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 8USOP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC I2C W/ALARM 8-USOP |
| DS1339U-3+T&R | 功能描述:实时时钟 I2C Serial RTC 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 |
| DS1339U33 | 制造商:Maxim Integrated Products 功能描述: |
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