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Rev. 1.0, 07/01, page 315 of 372
20.3.6 Power-Supply-Voltage Detection Circuit Characteristics (Optional)
Table 20-16 Power-Supply-Voltage Detection Circuit Characteristics
V
CC
= 2.7 to 5.5 V, V
SS
= 0.0 V, T
a
= –20 to +75°C, unless otherwise specified.
Test
Values
Item Symbol Condition Min Typ Max Unit
Rising by low-voltage detection Vint (D)
—
TBD
—
TBD V
Falling by low-voltage detection Vint (U)
—
TBD
—
TBD V
Reset by low-voltage detection Vreset
—
TBD
—
TBD V
Power-supply rising voltage
—
TBD
——
V/ms
20.4 Operation Timing
t
OSC
V
IH
V
IL
t
CPH
t
CPL
t
CPr
OSC1
t
CPf
Figure 20-1 System Clock Input Timing
t
REL
V
IL
t
REL
V
IL
V
CC
× 0.7
V
CC
OSC1
Figure 20-2 RES Low Width Timing