M62021 Mitsubishi, M62021 Datasheet - Page 6

• Manufacturer Part Number: M62021
• Description: SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP
• Manufacturer: Mitsubishi

TIMING CHART
Output
pin
VOUT
Input
voltage
RES
RES
CS
RES
V
V
RES
CS
0V
OUT
IN
With Q4 set to ON,
a voltage
(V
The output level is
V
with a logic low
The output level is
V
with a logic low
The output level is
V
with a logic low
5V
OL
OH
OL
In normal operation
IN
Input voltage:5V
(CS)
-V
(RES)
(RES)
DROP
)is output
tpd
SYSTEM RESET IC WITH SWITCH FOR MEMORY BACK-UP
In failure(instantaneous drop)
As the state shifts from a logic
high to logic low,the output level
becomes V
As the state shifts from a logic
low to logic high,the output level
becomes approximately equal to
As the state shifts from a logic
low to logic high,the output level
becomes the voltage V
Q4
Q4 is turned OFF.A voltage
(VIN-Q4 VEB(Di) is output by
the input voltage
Input voltage:5V
Each output varies if the input
voltage drops to V
the diode between E and B of
Q4
EB
(Di).
OL
(RES)
SL
MITSUBISHI
4V
or under
ELECTRIC
IN
-
V1=V
V2=V
V3=V
A logic high is maintained,and than
Input voltage:4V
If the input voltage goes higher
than VSL by 100mV,each out-put
delay circuit
A logic high is maintained,and than
A logic low is held,and than shifts
to a logic high
tpd
Q4 is turned ON after delay and
a voltage(V
shifts to a logic high
varies after delay produced by the
shifts to a logic high
Restoration from failure
IN
IN
IN
(instantaneous drop)
-V
-Q4V
(VSL)-V
DROP
EB
IN
MITSUBISHI<Dig.Ana.INTERFACE>
-V
(Di)
M62021L,P,FP
DROP
DROP
5V
) is output
V4=V
V5=V
IN
BAT
(V
-V
SL
Vs
The output is a logic high
and the output level is
V
F
)-Q4V
Input voltage:0V
Backup voltage:3V
V
BAT
BAT
In backup state
-V
-V
EB
F
(
F
V
V
V1
V2
V3
V4
V5
V2
V4
V5
(Di)
V
5V
V
V
V
V
SH
SL
V
6
OL
IN
OL
OL
IN
OL
(V
(VSL)
(CS)
(RES)
(RES)
(RES)
SL
/ 9 )
)