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RL78/G1A
CHAPTER 30 ELECTRICAL SPECIFICATIONS (G: INDUSTRIAL APPLICATIONS T
A
=
−
40 to +105
°
C)
R01UH0305EJ0200 Rev.2.00 949
Jul 04, 2013
30.6.4 LVD circuit characteristics
LVD Detection Voltage of Reset Mode and Interrupt Mode
(T
A = −40 to +105°C, VPDR ≤ VDD ≤ 3.6 V, VSS = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Power supply rise time 3.01 3.13 3.25 V VLVD2
Power supply fall time 2.94 3.06 3.18 V
Power supply rise time 2.90 3.02 3.14 V VLVD3
Power supply fall time 2.85 2.96 3.07 V
Power supply rise time 2.81 2.92 3.03 V VLVD4
Power supply fall time 2.75 2.86 2.97 V
Power supply rise time 2.70 2.81 2.92 V VLVD5
Power supply fall time 2.64 2.75 2.86 V
Power supply rise time 2.61 2.71 2.81 V VLVD6
Power supply fall time 2.55 2.65 2.75 V
Power supply rise time 2.51 2.61 2.71 V
Detection
voltage
Supply voltage level
V
LVD7
Power supply fall time 2.45 2.55 2.65 V
Minimum pulse width tLW
300
μ
s
Detection delay time
300
μ
s
Remark V
LVD (n−1) > VLVDn: n = 3 to 7
LVD Detection Voltage of Interrupt & Reset Mode
(T
A = −40 to +105°C, VPDR ≤ VDD ≤ 3.6 V, VSS = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
VLVD5 VPOC2, VPOC1, VPOC0 = 0, 1, 1, falling reset voltage 2.64 2.75 2.86
V
Rising release reset voltage 2.81 2.92 3.03
V
VLVD4 LVIS1, LVIS0 = 1, 0
Falling interrupt voltage 2.75 2.86 2.97
V
Rising release reset voltage 2.90 3.02 3.14
V
Interrupt & reset
mode
V
LVD3
LVIS1, LVIS0 = 0, 1
Falling interrupt voltage 2.85 2.96 3.07
V
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
30.6.5 Supply voltage rise slope characteristics
(T
A = −40 to +105°C, VSS = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Supply voltage rise SVDD 54 V/ms
Caution Be sure to maintain the internal reset state until V
DD reaches the operating voltage range specified in
30.4 AC Characteristics, by using the LVD circuit or external reset pin.