SH7080 Datasheet, PDF (1470/1644 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 28 Electrical Characteristics
28.3.1 Clock Timing
Table 28.6 Clock Timing
Conditions: V_CC = 3.0 V to 3.6 V or 4.5 V to 5.5 V, AV_CC = 4.5 V to 5.5 V, AV_ref = 4.5 V to AV_CC,
V_SS = PLLV_SS = AV_SS = 0 V, T_a = –20°C to +85°C (consumer applications),
T_a = –40°C to +85°C (industrial applications)
Item
EXTAL clock input frequency
EXTAL clock input cycle time
EXTAL clock input low pulse width
EXTAL clock input high pulse width
EXTAL clock input rise time
EXTAL clock input fall time
CK clock output frequency
CK clock output cycle time
CK clock output low pulse width
CK clock output high pulse width
CK clock output rise time
CK clock output fall time
Power-on oscillation settling time
Standby return oscillation settling time 1
Standby return oscillation settling time 2
Symbol
f
EX
t_EXcyc
t_EXL
t
EXH
t
EXr
t
EXf
f
OP
t_cyc
t
CKL
t_CKH
t_CKr
t_CKf
t
OSC1
t
OSC2
t
OSC3
Min.
5
80
20
20


10
25
1/2t −7.5
cyc
1/2t_cyc−7.5


10
10
10
Max.
12.5
200


5
5
40
100


5
5



Unit
MHz
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns
ns
ms
ms
ms
Reference
Figure
Figure 28.1
Figure 28.2
Figure 28.3
Figure 28.4
Figure 28.5
EXTAL
(input)
1/2 V_CC
t_EXH
t_EXcyc
t_EXL
V_IH
V_IH
V_IL
V_IL
t_EXf
V_IH
1/2 V_CC
t_EXr
Figure 28.1 EXTAL Clock Input Timing
Rev. 3.00 May 17, 2007 Page 1412 of 1582
REJ09B0181-0300