hd64338023s Renesas Electronics Corporation., hd64338023s Datasheet - Page 571

• Manufacturer Part Number: hd64338023s
• Description: Renesas 8-bit Single-chip Microcomputer Super Low Power Series
• Manufacturer: Renesas Electronics Corporation.

16.8.9
Table 16.33 Watchdog Timer Characteristics
AV
Item
Note: * When the on-chip oscillator is selected, the timer counts from 0 to 255, indicating the time
16.9
Figures 16.1 to 16.6 show timing diagrams.
On-chip oscillator
overflow time
CC
OSC1
x
1
= 2.7 V to 5.5 V, V
remaining until an internal reset is generated.
Operation Timing
Watchdog Timer Characteristics
V
IL
V
IH
Symbol
t
OVF
SS
t
t
CPr
= AV
CPH
Figure 16.1 Clock Input Timing
SS
Applicable
Pins
t
= 0.0 V, unless otherwise specified
OSC
, tw
t
t
CPf
CPL
Min
0.2
Rated Values
Typ
0.4
Rev. 7.00 Mar 10, 2005 page 529 of 652
Section 16 Electrical Characteristics
Max
—
Unit
s
Note
*
REJ09B0042-0700
Test
Condition
V
CC
= 5 V