Datasheet

Section 16 Electrical Characteristics
Rev. 8.00 Mar. 09, 2010 Page 525 of 658
REJ09B0042-0800
16.8.9 Watchdog Timer Characteristics
Table 16.34 Watchdog Timer Characteristics
AV
CC
= 2.7 V to 5.5 V, V
SS
= AV
SS
= 0.0 V, unless otherwise specified
Rated Values
Item Symbol
Applicable
Pins Min Typ Max Unit Note
Test
Condition
On-chip oscillator
overflow time
t
OVF
0.2 0.4 — s * V
CC
= 5 V
Note: * When the on-chip oscillator is selected, the timer counts from 0 to 255, indicating the time
remaining until an internal reset is generated.
16.8.10 Power Supply Characteristics
Table 16.35 Power Supply Characteristics
Unless otherwise indicated, V
CC
= 2.7 V to 5.5 V, AV
CC
= 2.7 V to 5.5 V, V
SS
= AV
SS
= 0.0 V
Values
Item Symbol
Applicable
Pins
Test
Condition Min Typ Max Unit Notes
Power supply startup voltage V
CCSTART
V
CC
0 — 0.1 V
*
1
*
2
Power supply startup slope SV
CC
V
CC
0.05 — — V/ms
Notes: 1. This LSI may not start normally when it starts with the condition beyond specification
shown in above (Refer to figure 16.1 for power supply voltage startup time.).
2. Applies to the F-ZTAT version.
Voltage (V)
V
CCSTART
V
CC
SV
CC
Time (ms)
Figure 16.1 Power Supply Voltage Startup Timing