NEC 78K0 User Manual page 572

CHAPTER 31 ELECTRICAL SPECIFICATIONS ((A1) GRADE PRODUCTS)
LVI Circuit Characteristics (T
Parameter
Detection voltage
Note 2
Response time
Minimum pulse width
Reference voltage stabilization wait
Note 3
time
Operation stabilization wait time
= −40 to +110°C:
Notes 1. T
A
= −40 to +105°C:
T
A
2. Time required from voltage detection to interrupt output or internal reset output.
3. Time required from setting LVIE to 1 to reference voltage stabilization when POC-OFF is selected by
mask option (when flash memory version
4. Time required from setting LVION to 1 to operation stabilization.
Remarks 1. V > V > V
LVI0 LVI1
2. V < V
POCn LVIm
LVI Circuit Timing
Supply voltage
Detection voltage (MAX.)
Detection voltage (TYP.)
Detection voltage (MIN.)
Data Memory STOP Mode Low Supply Voltage Data Retention Characteristics (T
Parameter
Data retention supply voltage
Release signal set time
= −40 to +110°C:
Notes 1. T
A
= −40 to +105°C:
T
A
2. When flash memory version
572
= −40 to +110°C
Note 1
)
A
Symbol
V
LVI0
V
LVI1
V
LVI2
V
LVI3
V
LVI4
t
LD
t
LW
t
LWAIT0
Note 4
t
LWAIT1
µ
PD780143(A1), 780144(A1), 780146(A1), 780148(A1)
µ
PD78F0148(A1)
µ
> V > V
LVI2 LVI3 LVI4
(n = 0 and 1, m = 0 to 4)
(V )
DD
Symbol
V When POC-OFF is selected by mask
DDDR
Note 2
option
t
SREL
µ
PD780143(A1), 780144(A1), 780146(A1), 780148(A1)
µ
PD78F0148(A1)
µ
PD78F0148M1(A1) or 78F0148M2(A1) is used
User's Manual U15947EJ2V0UD
Conditions
PD78F0148M1(A1) or 78F0148M2(A1) is used).
*
t
LW
t t t
WAIT0 WAIT1
LD
LVIE ← 1 LVION ← 1
Conditions
MIN. TYP. MAX.
4.1 4.3 4.52
3.9 4.1 4.32
3.7 3.9 4.12
3.5 3.7 3.92
3.3 3.5 3.72
0.2 2.0
0.2
0.5 2.0
0.1 0.2
Time
= −40 to +110°C
Note 1
)
A
MIN. TYP. MAX.
2.0 5.5
0
Unit
V
V
V
V
V
ms
ms
ms
ms
Unit
V
µ
s