DS1814B 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated
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DS1814B Datasheet PDF : 8 Pages
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TIMING DIAGRAM: POWER-UP Figure 8
DS1814/DS1819
RST VALID TO 0 VOLTS VCC Figure 9
OUTPUT VALID CONDITIONS
The RST output uses a push-pull output which can maintain a valid output down to 1.0V VCC. To sink
current below 1.0V a resistor can be connected form RST to Ground (see Figure 9.) This arrangement
will maintain a valid value on RST during both power-up and -down but will draw current when RST is
in the high state. A value of about 100kW should be adequate in most situations. The output with a
resistor pull-down can maintain a valid reset down to VCC equal to 0V.
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