
34
MB89910 Series
(5) Low-voltage Detection Reset
(AV
SS
= V
SS
0.0 V, T
A
= –40
°
C to +85
°
C)
Parameter
Symbol
Condition
Value
Unit
Remarks
Min.
Max.
Detection voltage at power
supply voltage fall
V
DL1
—
3.00
3.60
V
V
DH
and V
DL
are set for
the MB89913/915 by
mask options and for
the MB89P915 by a
register.
V
DL2
—
3.30
3.90
V
V
DL3
—
3.70
4.40
V
Detection voltage at power
supply voltage rise
V
DH1
—
3.10
3.80
V
V
DH2
—
3.40
4.10
V
V
DH3
V
t
L
—
3.80
4.60
V
Hysteresis width
—
0.10
—
V
μ
s
ns
μ
s
V/
μ
s
Reset insensitive time
—
0.3
—
Reset sensitive width
t
LW
—
16 t
XCYL
—
Reset detection delay time
Voltage regulation (V
/t
)
t
D
—
—
2.0
VCR
—
—
0.10
V
t
V
t
D
RUN
RESET
V
DH
V
DL
RUN
RESET
t
t
V
CC
V
DH
V
DL
V
CC
Power supply voltage
t
OSC
t
OSC
t
D
Power supply voltage
t
L
or less
t
LW
or less
t
OSC
oscillation stabilization time 2
18
= 32.8 ms (F
CH
= 8 MHz)
Reset not applied
Reset applied