S-807 Datasheet, PDF (38/42 Pages) Seiko Instruments Inc – HIGH-PRECISION VOLTAGE DETECTOR

HIGH-PRECISION VOLTAGE DETECTOR
S-807 Series

Application Circuit Examples
1. Reset circuits of microcomputers
If the power supply voltage to a microcomputer falls below the specified level, unspecified operation may be performed or the
contents of the memory register may be lost. When power supply voltage returns to normal, the microcomputer may need to
be initialized before normal operations can be done.
Reset circuits protect microcomputers, in the event of current being momentarily switched off or lowered.
With the S-807 Series, the reset circuits shown in Figures 24 to 26 can be easily constructed.
V_DD1
V_DD2
V_DD
S-807XX
AL/SL
Micro-
computer
V_SS
S-807XX
AN/SN
Micro-
computer
V_SS
Figure 24
V_DD
(Nch open-drain output products only)
Figure 25
S-807XX
AN/SN
Micro-
computer
V_SS
Figure 26
Seiko Instruments Inc.
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