R5105N RICOH Co.,Ltd., R5105N Datasheet - Page 9
R5105N
Manufacturer Part Number
R5105N
Description
Microprocessor Supervisory Circuit
Manufacturer
RICOH Co.,Ltd.
Datasheet
1.R5105N.pdf
(14 pages)
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Power on Reset Operation against the input glitch
APPLICATION NOTES
If a resistor is connected to the VDD pin, the operation might be unstable with the supply current of IC itself.
VDD
VIN
R5105
V
RESETB
DD
C
R1
D
+V
+V
-V DET
-V
TCD
0V
0V
DET
0V
TCD
RESETB
Incomplete Discharge
Connection examples affected by the conduction current
tpLH1
R2
VDD
VIN
R5105
Complete Discharge
R1
(tpLH1 < tpLH
RESETB
tpLH
)
V
CMOS
Output
V
DD
IN
R5105
R1
RESETB
R2
R5105N
9
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