SH7211 Datasheet, PDF (1114/1228 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family

Section 27 Electrical Characteristics
27.4.1 Clock Timing
Table 27.6 Clock Timing
Conditions: Vcc = PLLVcc = 1.4 to 1.6 V, VccQ = 3.0 to 3.6 V,
Vss = PLLVss = VssQ = 0 V, Ta = −40°C to +85°C
Item
EXTAL clock input frequency
EXTAL clock input cycle time
EXTAL clock input pulse low width
EXTAL clock input pulse high width
EXTAL clock input rise time
EXTAL clock input fall time
CK clock output frequency
CK clock output cycle time
CK clock output pulse low width
CK clock output pulse high width
CK clock output rise time
CK clock output fall time
Power-on oscillation setting time
Oscillation settling time on return from
standby 1
Oscillation settling time on return from
standby 2
Symbol Min.
f_EX
t_EXcyc
t_EXL
t_EXH
t_EXr
t_EXf
f_OP
t_cyc
t_CKOL
t
CKOH
t_CKOr
t_CKOf
t_OSC1
t_OSC2
8
100
6
6
–
–
16
25.0
6
6
–
–
10
10
t_OSC3
10
Max.
10
125
–
–
3
3
40
62.5
–
–
3
3
–
–
–
Unit
MHz
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns
ns
ms
ms
ms
Figure
Figure 27.3
Figure 27.4
Figure 27.5
Figure 27.6
Figure 27.7
EXTAL^*
(input)
1/2 VccQ
t_EXH
t_EXcyc
t_EXL
V_IH
V_IH
V_IL
V_IL
t_EXf
V_IH
1/2 VccQ
t_EXr
Note: * When the clock is input on the EXTAL pin.
Figure 27.3 EXTAL Clock Input Timing
Rev. 2.00 May. 08, 2008 Page 1090 of 1200
REJ09B0344-0200