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参数资料
| 型号： | RTC-4543SB:B-0 |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO18 |
| 封装： | SOP-18 |
| 文件页数： | 3/16页 |
| 文件大小： | 224K |
RTC - 4543 SA/SB
Page
8
ETM09E-02
7-3. Data writes (Divider Reset)
CLK
WR
DATA
s40
s20
s10
s8
s4
y8
y10 y20 y40
CE
y80
1
52
2
N Seconds
s1
Divider reset
Pulse
s2
Timer,counter N seconds
N seconds
0 seconds
Carry stop
Pulse
After the counter is reset, carries to the seconds digit are halted.After the data write operation,
the prohibition on carries to the seconds counter is lifted by setting the CE pin low.
Complete data write operations within tCE (Max.) = 0.9 seconds, as described earlier.
7-4. FOUT output and 1 Hz carries
CLK
WR
CE
1Hz
FOUT
CLK
t
CES
t
1.0 s
0
-7.8 ms
15.6 ms
During a data write operation, because a reset is applied to the Devider counter (from the 128 Hz
level to the 1 Hz level) after the CE pin goes high during the time between the falling edge of the first
clock cycle and the rising edge of the second clock cycle, the length of the first 1 Hz cycle after the
data write operation is 1.0 s +0 / 7.8ms +
tCES+tCLK. Subsequent cycles are output at 1.0-second
intervals.
The 1-Hz signal that is output on FOUT is the internal 1-Hz signal with a 15.6-ms shift applied.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RTC4553 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SERIAL-INTERFACE REAL TIME CLOCK MODULE |
| RTC-4553 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:SERIAL-INTERFACE REAL TIME CLOCK MODULE |
| RTC4553A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:IC SMD |
| RTC-4553A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| RTC-4553A2 | 功能描述:IC REAL TIME CLOCK 14-SOIC RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
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