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參數(shù)資料
| 型號： | PT7C43390WEX |
| 廠商： | Pericom |
| 文件頁數(shù)： | 3/23頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC REAL TIME CLOCK 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，閏年，方波輸出 |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 1.3 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.1 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | PT7C43390WEXDKR |
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PT0280(08/09)
Ver: 3
11
Data Sheet
PT7C43390
2-Wire Real-time Clock Module
[Processing of end-of-month]
A nonexistent day is set to the first day of the next month. If February 30th is written, March 1st is set. Leap year correction is
also performed at this time.
Interrupts
The INT1 pin output mode is selected by the INT1AE, INT1ME, and INT1FE flags of status register_2. Similarly, the INT2 pin
output mode is selected by the INT2AE, INT2ME, and INT2FE flags of status register_2.
1.
Alarm interrupt output
When the INT1 or INT2 pin output mode is set as the alarm setting using status register_2 and the day of week, hour, and minute
data is set in INT1 register_1 (or INT1 register_2), low is output from the INT1or INT2 pin when the set hour is reached. Since
the output is held, rewrite INT1AE of status register_2 to “0” (or INT2AE to “0”) using serial communication to set the output to
high (OFF state).
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