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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, VPDR ≤ VDD ≤ 3.6 V, VSS = 0 V)
Parameter Symbol Conditions MIN. TYP. MAX. Unit
Power supply rise time 3.07 3.13 3.19 V VLVD2
Power supply fall time 3.00 3.06 3.12 V
Power supply rise time 2.96 3.02 3.08 V VLVD3
Power supply fall time 2.90 2.96 3.02 V
Power supply rise time 2.86 2.92 2.97 V VLVD4
Power supply fall time 2.80 2.86 2.91 V
Power supply rise time 2.76 2.81 2.87 V VLVD5
Power supply fall time 2.70 2.75 2.81 V
Power supply rise time 2.66 2.71 2.76 V VLVD6
Power supply fall time 2.60 2.65 2.70 V
Power supply rise time 2.56 2.61 2.66 V VLVD7
Power supply fall time 2.50 2.55 2.60 V
Power supply rise time 2.45 2.50 2.55 V VLVD8
Power supply fall time 2.40 2.45 2.50 V
Power supply rise time 2.05 2.09 2.13 V VLVD9
Power supply fall time 2.00 2.04 2.08 V
Power supply rise time 1.94 1.98 2.02 V VLVD10
Power supply fall time 1.90 1.94 1.98 V
Power supply rise time 1.84 1.88 1.91 V VLVD11
Power supply fall time 1.80 1.84 1.87 V
Power supply rise time 1.74 1.77 1.81 V VLVD12
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 tLW
300
μ
s
Detection delay time
300
μ
s
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: VDD = 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