S80830 SII [Seiko Instruments Inc], S80830 Datasheet - Page 32

• Manufacturer Part Number: S80830
• Description: ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
• Manufacturer: SII [Seiko Instruments Inc]

Caution The above connection diagram and constants do not guarantee correct operation. Perform
32
Input voltagae
Output voltage
V
ULTRA-SMALL PACKAGE HIGH-PRECISION VOLTAGE DETECTOR
S-808xxC Series
Figure 23 Measurement Condition for Response Time
DD
1. Microcomputer Reset Circuits
Application Circuit Examples
×10 %
If the power supply voltage to a microcomputer falls below the specified level, an unspecified operation may
be performed or the contents of the memory register may be lost. When power supply voltage returns to
normal, the microcomputer needs to be initialized before normal operations can be done.
Reset circuits protect microcomputers in the event of current being momentarily switched off or lowered.
Reset circuits shown in Figures 25 to 26 can be easily constructed with the help of the S-808xxC series,
that has low operating voltage, a high-precision detection voltage and hysteresis.
Caution The above connection diagram and constants do not guarantee correct operation. Perform
Figure 25 Reset Circuit Example(S-808xxCL)
V
V
V
DD
sufficient evaluation using the actual application to set the constants.
IH
IL
S-
808xxCL
sufficient evaluation using the actual application to set the constants.
1 µs
V
IH
t
pHL
=10 V, V
Microcomputer
IL
=0.95 V
1 µs
t
pLH
Seiko Instruments Inc.
VDD
VSS
V
DD
×90 %
Figure 24 Measurement Circuit for Response Time
*1. R is unnecessary for CMOS output products.
Figure 26 Reset Circuit Example (S-808xxCN)
V
DD
VDD1
S-
808xxCN
(Only for Nch open-drain products)
V
S-808xxC
Series
VDD
VSS
Microcomputer
OUT
C
OUT
Rev.3.2
V
VDD2
VSS
R
100 kΩ
*1
_00