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参数资料
| 型号： | 1337DVGI |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO8 |
| 封装： | 3 MM, ROHS COMPLIANT, MSOP-8 |
| 文件页数： | 22/24页 |
| 文件大小： | 362K |
| 代理商： | 1337DVGI |
IDT1337
REA LTIME CLOCK WITH SERIAL INTERFACE
RTC
IDT REAL-TIME CLOCK WITH I2C SERIAL INTERFACE
7
IDT1337
REV J 111009
Table 2. Alarm Mask Bits
Special-Purpose Registers
The IDT1337 has two additional registers (control and status) that control the RTC, alarms, and square-wave output.
Control Register (0Eh)
Bit 7: Enable Oscillator (EOSC). This active-low bit when set to logic 0 starts the oscillator. When this bit is set to
a logic 1, the oscillator is stopped. This bit is enabled (logic 0) when power is first applied.
Bits 4 and 3: Rate Select (RS2 and RS1). These bits control the frequency of the square-wave output when the
square wave has been enabled. Table 3 shows the square-wave frequencies that can be selected with the RS bits.
These bits are both set to logic 1 (32 kHz) when power is first applied.
Table 3. SQW/INT Output
DY/DT
Alarm 1 Register Mask Bits (Bit 7)
Alarm Rate
A1M4
A1M3
A1M2
A1M1
X
1111
Alarm once per second.
X
1110
Alarm when seconds match.
X
1100
Alarm when minutes and seconds match.
X
1000
Alarm when hours, minutes, and seconds match.
0
0000
Alarm when date, hours, minutes, and seconds match.
1
0000
Alarm when day, hours, minutes, and seconds match.
DY/DT
Alarm 2 Register Mask Bits (Bit 7)
Alarm Rate
A2M4
A2M3
A2M2
X
1
Alarm once per minute (00 seconds of every minute).
X
1
0
Alarm when minutes match.
X
1
0
Alarm when hours and minutes match.
0
Alarm when date, hours, and minutes match.
1
0
Alarm when day, hours, and minutes match.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
EOSC
0
RS2
RS1
INTCN
A2IE
A1IE
INTCN
RS2
RS1
SQW/INTB Output
A2IE
00
0
1 Hz
X
0
1
4.096 kHz
X
0
1
0
8.192 kHz
X
0
1
32.768 kHz
X
1X
X
A2F
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 1337DVGI8 | 制造商:Integrated Device Technology Inc 功能描述:REAL TIME CLOCK SERL 8TSSOP - Tape and Reel |
| 1337G0 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Peripheral IC |
| 1337G1 | 功能描述:重负荷电源连接器 PCB45 HORIZ (TOP) RA LP CONT. RoHS:否 制造商:Hirose Connector 系列:PS2 产品类型:Connectors 位置/触点数量: 端接类型:Crimp 触点材料: 触点电镀:Gold 电压额定值: 电流额定值:300 A 附件类型: |
| 1337G2 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Peripheral IC |
| 1337GCSRI | 功能描述:实时时钟 实时时钟 with Embedded Crystal 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 |
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