- 您现在的位置：买卖IC网 > PDF目录69323 > RTC-62423B-0 (EPSON TOYOCOM CORP) REAL TIME CLOCK, PDSO24 PDF资料下载
参数资料
| 型号： | RTC-62423B-0 |
| 厂商： | EPSON TOYOCOM CORP |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO24 |
| 封装： | SOP-24 |
| 文件页数： | 10/24页 |
| 文件大小： | 195K |
| 代理商： | RTC-62423B-0 |
RTC - 62421 / 62423
Page - 15
MQ152-05
Read when the HOLD bit is not used (2)
Read using an interrupt
Timer (*3)
NO
YES
Set the CE register
Reg.E
t
ITRPT/STND
MASK
0
1
0 or 1
**10B
←
1
0
(*2)
0 or 1
From previous process
Setting completed
Operation
IRQ FLAG
0
←
Read the required digit data
Read the IRQ FLAG bit
IRQ FLAG bit = 0?
To next process
NO
YES (incrementation from RTC)
Reg.E
t
ITRPT/STND
MASK
0
1
0 or 1
**10B
←
1
0
(*2)
From previous process
Set the CE register
0 or 1
Interrupt generation
Setting completed
Operation
Read the IRQ FLAG bit
IRQ FLAG bit = 0?
Interrupt generation
from other device
Timer (*3)
Read the required digit data
IRQ FLAG
Return from interrupt processing
0
←
Clear the IRQ FLAG bit to
enable the next interrupt
(*2) Setting of interrupt generation frequency by the t1 and t0 bits
Interrupt frequency
t1 setting
t0 setting
Every second
0
1
Every minute
1
0
Every hour
1
(*3) Timer wait times
Timer mode
Timer wait time
12-hour clock
35
s
24-hour clock
3
s
3. Write to 30-second ADJ bit
The 30-seconds ADJ function is enabled by writing 1 to the 30-seconds ADJ bit. Note that the counter registers (S1 to W) cannot
be accessed for 125
s after this write. Therefore, follow one of the procedures shown below to use this function.
START
END
NO
YES
←
30-seconds ADJ bit
1
Read the 30-seconds ADJ bit
30-seconds ADJ bit = 0?
Wait 125
s
or
START
END
NO
YES
← 1
30-seconds ADJ bit
Read the 30-seconds ADJ
30-seconds ADJ bit = 0?
Note
The quartz crystal could be damaged if subjected to excessive shock. If the quartz crystal should stop operating for such a reason,
the timer within the RTC will stop. While the quartz crystal is operating, the BUSY bit is automatically reset every 190 s and the 30-
seconds ADJ bit, every 125
s, but this automatic reset cannot be done if the oscillation stops. Therefore, in such a status, it is no
longer possible to escape from the BUSY bit status check loop shown in subsection 2 above or the 30-seconds ADJ bit status check
loop shown in subsection 3 above, and you should consider backing up the system. To design a fail-safe system, provide an escape
from the loop to a procedure that can process such an error if the loop is repeated for more than 0.5 to 1.0 ms.
相关PDF资料 |
PDF描述 |
|---|---|
| RTC-72421A | 0 TIMER(S), REAL TIME CLOCK, PDIP18 |
| RTC-72421B | 0 TIMER(S), REAL TIME CLOCK, PDIP18 |
| RTC-72423A-0 | 0 TIMER(S), REAL TIME CLOCK, PDSO24 |
| RTC-72423B-0 | REAL TIME CLOCK, PDSO24 |
| RTC-72423A-0 | 0 TIMER(S), REAL TIME CLOCK, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RTC63421 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:4-bit MULTIFUNCTIONAL REAL TIME CLOCK MODULE |
| RTC-63421 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:4-bit MULTIFUNCTIONAL REAL TIME CLOCK MODULE |
| RTC-63421A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| RTC-63421B | 功能描述:IC RTC SER +-50PPM 18-DIP 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 |
| RTC-63421M | 制造商:未知厂家 制造商全称:未知厂家 功能描述:4-bit MULTIFUNCTIONAL REAL TIME CLOCK MODULE |
发布紧急采购，3分钟左右您将得到回复。