SH7641 Datasheet, PDF (966/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 25 Electrical Characteristics
25.3.1 Clock Timing
Table 25.6 Clock Timing
Conditions: V_CCQ = 3.0 V to 3.6 V, V_CC = 1.8 V ± 5%, AV_CC = 3.0 V to 3.6 V, V_SSQ = V_SS = AV_SS
= 0 V, Ta = −40°C to +85°C
Item
Symbol Min.
EXTAL clock input frequency
f
10
EX
EXTAL clock input cycle time
t_EXcyc
40
EXTAL clock input pulse low width
t
7
EXL
EXTAL clock input pulse high width
t_EXH
7
EXTAL clock input rising time
t_EXR

EXTAL clock falling time
t_EXF

CKIO clock input frequency
f
20
CK
CKIO clock input cycle time
t
20
CKcyc
CKIO clock input low pulse width
t
7
CKIL
CKIO clock input high pulse width
t
7
CKIH
CKIO clock input rising time
t_CKIr

CKIO clock input falling time
t
CKIf

CKIO, CKIO2 clock output frequency
f_OP
20
CKIO, CKIO2 clock output cycle time
t_cyc
20
CKIO, CKIO2 clock output pulse low width t_CKOL
7
CKIO, CKIO2 clock output pulse high width t
7
CKOH
CKIO, CKIO2 clock output rising time
t
CKOR

CKIO, CKIO2 clock falling time
t
CKOF

Oscillation settling time
(after power-on reset)
t
10
OSC1
Phase difference between CKIO and
CKIO2
t
phckio2

Oscillation settling time 1
(after standby mode)
t_OSC2
10
Oscillation settling time 2
(after standby mode)
t
10
OSC3
Max.
25
100


4
4
50
50


3
3
50
50


5
5

Unit
MHz
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns
ns
ms
Figure(s)
25.2
25.3
25.4
25.5
3
ns 25.6

ms 25.7

ms 25.8
Rev. 4.00 Sep. 14, 2005 Page 916 of 982
REJ09B0023-0400