Renesas 7700 FAMILY, User Manual

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ELECTRICAL CHARACTERISTICS
7751 Group User’s Manual
15–7
15.5 Internal peripheral devices
Limits
Min. Max.
Unit Symbol Parameter
Timer A input (External trigger input in one-shot pulse mode)
Data formula (Min.)
f(X
IN
)
≤
40 MHz
f(X
IN
)
≤
25 MHz
when
φ
divided by 2 selected as clock
source for peripheral devices
f(X
IN
)
≤
25 MHz
when
φ
selected as clock source for
peripheral devices
8
✕
10 9
f(X
IN
)
8
✕
10
9
f(X
IN
)
4
✕
10
9
f(X
IN
)
TAi
IN
input cycle time (Note)
TAi
IN
input high-level pulse width
TAi
IN
input low-level pulse width
t
c(TA)
t
w(TAH)
t
w(TAL)
200
320
160
80
80
ns
ns
ns
Limits
Min.
80
80
Max.
ns
ns
Unit Parameter
Timer A input (External trigger input in pulse width modulation mode)
Symbol
TAi
IN
input high-level pulse width
TAi
IN
input low-level pulse width
Limits
Min.
2000
1000
1000
400
400
Max.
ns
ns
ns
ns
ns
Unit Parameter
Symbol
Timer A input (Up-down input in event counter mode)
t
c(UP)
t
w(UPH)
t
w(UPL)
t
su(UP–T
IN
)
t
h(T
IN
–UP)
TAi
OUT
input cycle time
TAi
OUT
input high-level pulse width
TAi
OUT
input low-level pulse width
TAi
OUT
input setup time
TAi
OUT
input hold time
Note: The limits in the upper row of the table are the values when f(X
IN
) is 40 MHz and the count source is f
4
.
The limits in the middle row of the table are the values when f(X
IN
) is 25 MHz and the count source is f
4
.
The limits in the lower row of the table are the values when f(X
IN
) is 25 MHz and the count source is f
2
.
t
w(TAH)
t
w(TAL)
Timer A input (Two-phase pulse input in event counter mode)
Limits
Unit Parameter
Symbol
t
su(TAj
IN
–TAj
OUT
)
t
su(TAj
OUT
–TAj
IN
)
TAj
IN
input setup time
TAj
OUT
input setup time
Min.
200
200
Max.
ns
ns