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Specifications and Characteristics
Electrical Specifications
Characteristic
Operating frequency
Clock cycle time
Clock low-pulse width
Clock high-pulse width
Clock rise time
Clock fall time
EXTAL input frequency
EXTAL input cycle time
EXTAL input low-level pulse width
EXTAL input high-level pulse width
EXTAL input rise time
EXTAL input fall time
Reset Oscillation setting time
Software standby oscillation setting time
*1 Typical outputs measured with 50pF load
80
Table 8-6. Clock Timing (E3472A)
Symbol
SH7040
Typical
min
max
f
4
28.7
op
t
34.8
250
cyc
t
10
-
CL
t
10
-
CH
t
-
5
cr
t
-
5
cf
t
4
10
EX
t
100
250
Excyc
t
40
-
EXL
t
40
-
EXH
t
-
5
EXR
t
-
5
EXF
t
10
-
OSC1
t
10
-
OSC2
(*1)
Worst Case
min max min max
4
33.3
4
33.3
30
250
30
250
13
-
7
-
15
-
7
-
-
4
-
8
-
3
-
8
4
10
4
10
100
250
100
250
40
-
40
-
40
-
40
-
-
5
-
5
-
5
-
5
10
-
10
-
10
-
10
-
Unit
MHz
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns
ns
ms
ms
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