UPD78F0138 NEC, UPD78F0138 Datasheet - Page 519

• Manufacturer Part Number: UPD78F0138
• Description: (UPD78xxxx) 8-Bit Single-Chip Microcontrollers
• Manufacturer: NEC

LVI Circuit Characteristics (T
Notes 1.
Remarks 1. V
LVI Circuit Timing
Data Memory STOP Mode Low Supply Voltage Data Retention Characteristics (T
Detection voltage
Response time
Minimum pulse width
Reference voltage stabilization wait
time
Operation stabilization wait time
Data retention supply voltage
Release signal set time
Note 2
2.
3.
2. V
Parameter
Parameter
Time required from voltage detection to interrupt output or internal reset output.
Time required from setting LVIE to 1 to reference voltage stabilization when POC-OFF is selected by the
mask option.
Time required from setting LVION to 1 to operation stabilization.
Detection voltage (MAX.)
Detection voltage (TYP.)
Detection voltage (MIN.)
Note 1
LVI0
POCn
> V
< V
Supply voltage
LVI1
CHAPTER 31 ELECTRICAL SPECIFICATIONS ((A2) GRADE PRODUCTS)
LVIm
> V
(n = 0 or 1, m = 0 to 4)
LVI2
Note 3
(V
A
DD
= −40 to +125°C)
> V
V
V
V
V
V
t
t
t
t
V
t
Symbol
)
Symbol
LD
LW
LWAIT0
LWAIT1
SREL
LVI0
LVI1
LVI2
LVI3
LVI4
DDDR
LVI3
> V
When POC-OFF is selected by mask
option
LVI4
User’s Manual U16228EJ2V0UD
LVIE 1 LVION 1
Conditions
Conditions
t
WAIT0
t
WAIT1
t
LD
t
LW
MIN.
MIN.
4.1
3.9
3.7
3.5
3.3
0.2
2.0
0
A
= −40 to +125°C)
TYP.
TYP.
4.3
4.1
3.9
3.7
3.5
0.2
0.5
0.1
Time
MAX.
MAX.
4.56
4.36
4.16
3.96
3.76
2.0
2.0
0.2
5.5
Unit
Unit
ms
ms
ms
ms
µ
V
V
V
V
V
V
s
519