Hitachi SH7032 - AC Characteristics;Clock Timing; Default Chapter; AC Characteristics; Clock Timing

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20.1.3 AC Characteristics
The following AC timing chart represents the AC characteristics, not signal functions. For signal
functions, see the explanation in the text.
(1) Clock Timing
Table 20.4 Clock Timing
Case A: V
CC
= 3.0 to 5.5 V, AV
CC
= 3.0 to 5.5 V, AV
CC
= V
CC
±10%, AV
ref
= 3.0 V to AV
CC
,
V
SS
= AV
SS
= 0 V, Ta = –20 to +75°C
*
)
Case B: V
CC
= 5.0 V ±10%, AV
CC
= 5.0 V ±10%, AV
CC
= V
CC
±10%, AV
ref
= 4.5 V to AV
CC
,
V
SS
= AV
SS
= 0 V, Ta = –20 to +75°C
*
)
Note: * Regular-specification products; for wide-temperature-range products, Ta = –40 to +85°C
Case A Case B
Sym-
12.5 MHz 20 MHz
Item bol Min Max Min Max Unit Figures
EXTAL input high level
pulse width
t
EXH
20 — 10 — ns 20.1
EXTAL input low level
pulse width
t
EXL
20 — 10 — ns
EXTAL input rise time t
EXr
—10— 5 ns
EXTAL input fall time t
EXf
—10— 5 ns
Clock cycle time t
cyc
80 500 50 500 ns 20.1, 20.2
Clock high pulse width t
CH
30 — 20 — ns 20.2
Clock low pulse width t
CL
30 — 20 — ns
Clock rise time t
Cr
—10— 5 ns
Clock fall time t
Cf
—10— 5 ns
Reset oscillation settling
time
t
OSC1
10 — 10 — ms 20.3
Software standby
oscillation settling time
t
OSC2
10 — 10 — ms