Microprocessor Supervisory Circuit
R5108G SERIES
OUTLINE
NO. EA-171-070711
The R5108G Series are CMOS-based 碌 con supervisory circuit, or high accuracy and ultra low supply current
voltage detector with built-in delay and watchdog timer. When the SENSE voltage is down across the threshold,
or the watchdog timer does not detect the system clock from the
碌
con, the reset output is generated. The
voltage detector circuit is used for the system reset, etc. The detector threshold is fixed internally, and the
tolerance is
卤1.0%.
The released delay time (Power-on Reset Delay) circuit is built-in, and output delay time is
adjustable with an external capacitor. When the sense voltage becomes the released voltage, the reset state will
be maintained during the delay time. The time out period of the watchdog timer can be also set with an external
capacitor. The output type of the reset is selectable, Nch open-drain, or CMOS. There is a function to stop
supervising clock by the watchdog timer (INH function). A necessary voltage source can be supervised with
SENSE pin. The package is small SSOP-8G.
FEATURES
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Built-in a watchdog timer's time out period accuracy
卤30%
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Timeout period for watchdog and generating a reset signal can be set by an external capacitor
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Detector Threshold Voltage 路路路路路路路路路路路路路路路路路路路路路路路路路路路路路 0.1V stepwise setting in the range from 1.5V to 5.5V
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Supply current 路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路 Typ. 11碌A
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Operating Voltage 路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路 1.5V to 6.0V
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High Accuracy Output Voltage of Detector Threshold 路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路
卤1.0%
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Power-on Reset Delay Time accuracy路路路路路路路路路路路路路
卤20%
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Power-on reset delay time of the voltage detector can be set with an external capacitor.
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Small Package 路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路路 SSOP-8G (0.65mm pitch)
APPLICATION
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Supervisory circuit for equipment with using microprocessors.
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