High-Speed Running (Internal Ram Access) - Renesas 7700 FAMILY User Manual

ELECTRICAL CHARACTERISTICS
15.14 Memory expansion mode and microprocessor mode : When 2- φ access in high-speed running (Internal RAM access)
15.14 Memory expansion mode and microprocessor mode : When 2- φ access in high-speed
running (Internal RAM access)
Timing requirements (V
Symbol
φ high-level pulse width
t
w( φ H)
φ low-level pulse width
t
w( φ L)
φ
t
d(E– φ
output delay time
)
1 1
_
t
E low-level pulse width
w(EL)
t
Port P0 address output delay time
d(P0A–E)
t Port P1 floating start delay time (BYTE = "L")
pxz(E–P1Z)
t
Port P1 address output delay time
d(P1A–E)
Port P1 address output delay time
t
d(P1A–ALE)
Port P2 floating start delay time
t
pxz(E–P2Z)
Port P2 address output delay time
t
d(P2A–E)
t Port P2 address output delay time
d(P2A–ALE)
t ALE output delay time
d(E–ALE)
t
ALE output delay time
d(ALE–E)
t
ALE pulse width
w(ALE)
____
t
BHE
d(BHE–E)
__
t
R/W
d(R/W–E)
t
Port P0 address hold time
h(E–P0A)
Port P1 address hold time (BYTE = "L")
t
h(ALE–P1A)
t
Port P1 floating release delay time (BYTE = "L")
pzx(E–P1Z)
t
Port P1 address hold time (BYTE = "H")
h(E–P1A)
t
Port P2 address hold time
h(ALE–P2A)
t
Port P2 floating release delay time
pzx(E–P2Z)
____
t
BHE
h(E–BHE)
__
t
R/W
h(E–R/W)
15–48
= 5 V±10%, V = 0 V, Ta = –20 to 85 °C, f(X
CC SS
Parameter
output delay time
output delay time
hold time
hold time
7751 Group User's Manual
) = 40 MHz, unless otherwise noted)
IN
Data formula
(Min.)
Min.
9
1 10
– 20
f(X )
IN
1 10 9
– 20
f(X )
IN
1 10 9
– 20
f(X )
IN
9
2 10
– 35
f(X )
IN
2 10 9
– 35
f(X )
IN
9
1 10
– 20
f(X )
IN
9
2 10
– 35
f(X )
IN
1 10 9
– 20
f(X )
IN
1 10 9
– 15
f(X )
IN
1 10 9
– 7.5
2 f(X )
IN
1 10 9
– 15
f(X )
IN
9
2 10
– 30
f(X )
IN
2 10 9
– 30
f(X )
IN
1 10 9
– 10
f(X )
IN
9
1 10
– 15
f(X )
IN
1 10 9
– 10
f(X )
IN
9
1 10
– 10
f(X )
IN
9
1 10
– 15
f(X )
IN
1 10 9
– 10
f(X )
IN
1 10 9
– 10
f(X )
IN
1 10 9
– 10
f(X )
IN
Limits
Unit
Max.
5
ns
5
ns
0
18 ns
5
ns
ns
15
ns
5
15
ns
ns
5
ns
5
ns
15
ns
5
ns
10
ns
5
ns
10
ns
20
ns
20
ns
15
10
ns
15
ns
ns
15
10 ns
ns
15
ns
15
ns
15