NEC 78K0 User Manual page 457

CHAPTER 27 ELECTRICAL SPECIFICATIONS ((A2) GRADE PRODUCTS)
LVI Circuit Characteristics (T
Parameter
Detection voltage
Note 1
Response time
Minimum pulse width
Reference voltage stabilization wait
Note 2
time
Operation stabilization wait time
Notes 1. Time required from voltage detection to interrupt output or internal reset output.
2. Time required from setting LVIE to 1 to reference voltage stabilization when POC-OFF is selected by the
mask option.
3. 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 +125°C)
A
Symbol
V
LVI0
V
LVI1
V
LVI2
V
LVI3
V
LVI4
t
LD
t
LW
t
LWAIT0
Note 3
t
LWAIT1
> 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
option
t
SREL
User's Manual U16227EJ2V0UD
Conditions
t
LW
t t
t
WAIT0 WAIT1 LD
LVIE ← 1 LVION ← 1
Conditions
MIN. TYP. MAX.
4.1 4.3 4.56
3.9 4.1 4.36
3.7 3.9 4.16
3.5 3.7 3.96
3.3 3.5 3.76
0.2 2.0
0.2
0.5 2.0
0.1 0.2
Time
= −40 to +125°C)
A
MIN. TYP. MAX.
2.0 5.5
0
Unit
V
V
V
V
V
ms
ms
ms
ms
Unit
V
µ
s
457