SH7014 Datasheet, PDF (617/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

22. Electrical Characteristics (5 V 28.7 MHz)
22.3.7 Watchdog Timer Timing
Table 22.11 shows the Watchdog Timer Timing.
Table 22.11 Watchdog Timer Timing
Conditions: V_CC = 5.0 V ±10%, AV_CC = 5.0 V ±10%, AV_CC = V_CC ±10%, V_SS = AV_SS = 0 V,
Ta = −20 to +75°C
Item
WDTOVF delay time
Symbol Min
t_WOVD
⎯
Max
Unit
Figure
100
ns
22.24
CK
WDTOVF
t_WOVD
t_WOVD
Figure 22.24 Watchdog Timer Timing
22.3.8 Serial Communication Interface Timing
Table 22.12 shows the Serial Communication Interface Timing.
Table 22.12 Serial Communication Interface Timing
Conditions: V_CC = 5.0 V ±10%, AV_CC = 5.0 V ±10%, AV_CC = V_CC ±10%, V_SS = AV_SS = 0 V,
Ta = −20 to +75°C
Item
Symbol Min
Input clock cycle
t
4
scyc
Input clock cycle (clock sync)
t_scyc
6
Input clock pulse width
t_sckw
0.4
Input clock rise time
t
⎯
sckr
Input clock fall time
t
⎯
sckf
Transmit data delay time (clock sync) t
⎯
TXD
Receive data setup time (clock sync) t_RXS
100
Receive data hold time (clock sync) t_RXH
100
Max
⎯
⎯
0.6
1.5
1.5
100
⎯
⎯
Unit
t
cyc
t_cyc
t_scyc
t
cyc
t
cyc
ns
ns
ns
Figure
22.25
22.26
Rev.5.00 Sep. 27, 2007 Page 583 of 716
REJ09B0398-0500