RN5VD RICOH electronics devices division, RN5VD Datasheet - Page 27

• Manufacturer Part Number: RN5VD
• Description: VOLTAGE DETECTOR WITH OUTPUT DELAY
• Manufacturer: RICOH electronics devices division

26
RN5VD
• RN5VD
• RN5VD
• Memory Back-up Circuit
TYPICAL APPLICATIONS
(1) Input Voltage to RN5VD
the same as the input voltage to CPU.
C
C
D
D
C
C
D
D
A CPU Reset Circuit (Nch Open Drain Output)
C CPU Reset Circuit (CMOS Output)
GND
GND
V
V
RN5VD
RN5VD
SERIES
SERIES
DD
DD
C
D
A
C
V
DD
C
OUT
D
OUT
D1
GND
RN5VD
V
SERIES
R
DD
RESET
RESET
A is
C
GND
GND
V
V
DD
DD
OUT
D2
GND
CPU
CPU
G
A
B
Y1
Y2
Y3
Y4
V
CC
V
V
DD
DD
GND CS
RAM1
V
CC
(2) Input Voltage to RN5VD
different from the input voltage to CPU.
GND CS
RAM2
V
C
CC
D
V
DD1
C
D
GND CS
RAM3
V
CC
GND
V
RN5VD
SERIES
DD
GND CS
RAM4
V
A
CC
OUT
R
A is
RESET
GND
V
DD
CPU
V
DD2