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參數(shù)資料
| 型號： | LC85632 |
| 元件分類： | 時鐘及定時 |
| 英文描述： | LED CLOCK, PDIP30 |
| 封裝： | DIP-30 |
| 文件頁數(shù)： | 11/34頁 |
| 文件大?。?/td> | 394K |
| 代理商： | LC85632 |
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Operation
Clearing the Initial Reset State
In the initial state when power is first applied, the display reads 12:00 (or 0:00 for 24 hour display) and the numbers and
the colon flash alternately. This is called the “initial reset state”. The period of the flashing is 1 Hz.
To clear the flashing state, apply a high or low level to the TIME SET INPUT pin when the colon is lit.
Figure 11 Clearing the Initial Input State Flashing
In figure 11, the shaded areas under the LED display line are times when the numbers are lit. At these times the colon
will be off.
Here, the application of an input to the TIME SET INPUT input x in the figure when the numbers are lit, i.e., the timing
indicated by “A”, will be invalid. Since the colon is off at that point, the flashing state will not be cleared. However, such
an input is valid at a point when the numbers are off, i.e., the timing indicated by “B”. Since the colon will be lit in this
state, the flashing state will be cleared and the clock will enter normal display mode.
Alternatively, an input signal such as the TIME SET INPUT input y in the figure can be applied. Here, the low (or high)
level is held until the flashing is cleared at the timing indicated by “D” in the figure.
When the flashing state is cleared, the colon also will stop flashing, and remain lit.
LC85632
No. 4659-19/34
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