SH7050 Datasheet, PDF (677/841 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH RISC engine Family/

Section 22 Electrical Characteristics
22.3 AC Characteristics
Input output reference voltage level and loading current of AC characteristics measuring
conditions are same as defined in figure 22.22.
22.3.1 Clock Timing
Table 22.4 Clock Timing
Conditions: V_CC = 5.0 V ± 10%, AV_CC = 5.0 V ± 10%, AV_ref = 4.5 V to AV_CC, V_SS = AV_SS = 0 V,
Ta = –40 to +85°C
Item
Symbol Min
Operating frequency
f
4
OP
Clock cycle time
t_cyc
50
Clock low-level pulse width
t_CL
20
Clock high-level pulse width
t
20
CH
Clock rise time
t
—
CR
Clock fall time
t_CF
—
EXTAL clock input frequency
f_EX
4
EXTAL clock input cycle time
t_EXcyc
100
EXTAL clock low-level input pulse width t_EXL
30
EXTAL clock high-level input pulse width t
30
EXH
EXTAL clock input rise time
t
—
EXR
EXTAL clock input fall time
t_EXF
—
Reset oscillation settling time
t_OSC1
10
Standby return clock settling time
t
10
OSC2
Max
Unit Figures
20
MHz 22.1
250
ns
—
ns
—
ns
5
ns
5
ns
10
MHz 22.2
250
ns
—
ns
—
ns
5
ns
5
ns
—
ms 22.3
—
ms
Rev. 5.00 Jan 06, 2006 page 657 of 818
REJ09B0273-0500