Renesas rl78 User Manual
RL78/G1A
CHAPTER 29 ELECTRICAL SPECIFICATIONS (T
A
=
−40 to +85°C)
R01UH0305EJ0200 Rev.2.00
902
Jul 04, 2013
29.6.4 LVD circuit characteristics
LVD Detection Voltage of Reset Mode and Interrupt Mode
(T
A
=
−40 to +85°C, V
PDR
≤ V
DD
≤ 3.6 V, V
SS
= 0 V)
Parameter Symbol Conditions
MIN.
TYP.
MAX.
Unit
Power supply rise time
3.07
3.13
3.19
V
V
LVD2
Power supply fall time
3.00
3.06
3.12
V
Power supply rise time
2.96
3.02
3.08
V
V
LVD3
Power supply fall time
2.90
2.96
3.02
V
Power supply rise time
2.86
2.92
2.97
V
V
LVD4
Power supply fall time
2.80
2.86
2.91
V
Power supply rise time
2.76
2.81
2.87
V
V
LVD5
Power supply fall time
2.70
2.75
2.81
V
Power supply rise time
2.66
2.71
2.76
V
V
LVD6
Power supply fall time
2.60
2.65
2.70
V
Power supply rise time
2.56
2.61
2.66
V
V
LVD7
Power supply fall time
2.50
2.55
2.60
V
Power supply rise time
2.45
2.50
2.55
V
V
LVD8
Power supply fall time
2.40
2.45
2.50
V
Power supply rise time
2.05
2.09
2.13
V
V
LVD9
Power supply fall time
2.00
2.04
2.08
V
Power supply rise time
1.94
1.98
2.02
V
V
LVD10
Power supply fall time
1.90
1.94
1.98
V
Power supply rise time
1.84
1.88
1.91
V
V
LVD11
Power supply fall time
1.80
1.84
1.87
V
Power supply rise time
1.74
1.77
1.81
V
V
LVD12
Power supply fall time
1.70
1.73
1.77
V
Power supply rise time
1.64
1.67
1.70
V
Detection
voltage
Supply voltage level
V
LVD13
Power supply fall time
1.60
1.63
1.66
V
Minimum pulse width
t
LW
300
μs
Detection delay time
300
μs
Caution Set the detection voltage (V
LVD
) to be within the operating voltage range. The operating voltage range
depends on the setting of the user option byte (000C2H/010C2H). The following shows the operating
voltage range.
HS (high-speed main) mode: V
DD
= 2.7 to 3.6 V@1 MHz to 32 MHz
V
DD
= 2.4 to 3.6 V@1 MHz to 16 MHz
LS (low-speed main) mode: V
DD
= 1.8 to 3.6 V@1 MHz to 8 MHz
LV (low-voltage main) mode: V
DD
= 1.6 to 3.6 V@1 MHz to 4 MHz