
ELECTRICAL CHARACTERISTICS
7702/7703 Group User’s Manual
15–21
15.9 Memory expansion mode and microprocessor mode : with Wait
Timing requirements (VCC = 5 V±10%, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
Limits
25 MHz
16 MHz
Unit
Parameter
Symbol
40
15
30
60
0
tc
tw(H)
tw(L)
tr
tf
tsu(P1D–E)
tsu(P2D–E)
tsu(P4D–E)
tsu(P5D–E)
tsu(P6D–E)
tsu(P7D–E)
tsu(P8D–E)
th(E–P1D)
th(E–P2D)
th(E–P4D)
th(E–P5D)
th(E–P6D)
th(E–P7D)
th(E–P8D)
ns
External clock input cycle time
External clock input high-level pulse width
External clock input low-level pulse width
External clock rise time
External clock fall time
Port P1 input setup time
Port P2 input setup time
Port P4 input setup time
Port P5 input setup time
Port P6 input setup time
Port P7 input setup time
Port P8 input setup time
Port P1 input hold time
Port P2 input hold time
Port P4 input hold time
Port P5 input hold time
Port P6 input hold time
Port P7 input hold time
Port P8 input hold time
8
Min.
Max.
Min.
Max.
62
25
45
100
0
10
Limits
25 MHz
16 MHz
Unit
Parameter
Symbol
Min.
Max.
Min.
Max.
Port P4 data output delay time
Port P5 data output delay time
Port P6 data output delay time
Port P7 data output delay time
Port P8 data output delay time
φ1 output delay time
_
E low-pulse width
Port P0 address output delay time
Port P1 data output delay time (BYTE = “L”)
Port P1 floating start delay time (BYTE = “L”)
Port P1 address output delay time
Port P2 data output delay time
Port P2 floating start delay time
Port P2 address output delay time
ALE output delay time
ALE pulse width
____
BHE output delay time
__
R/W output delay time
td(E–P4Q)
td(E–P5Q)
td(E–P6Q)
td(E–P7Q)
td(E–P8Q)
td(E–φ1)
tw(EL)
td(P0A–E)
td(E–P1Q)
tpxz(E–P1Z)
td(P1A–E)
td(P1A–ALE)
td(E–P2Q)
tpxz(E–P2Z)
td(P2A–E)
td(P2A–ALE)
td(ALE–E)
tw(ALE)
td(BHE–E)
td(R/W–E)
Switching characteristics (VCC = 5 V±10%, VSS = 0 V, Ta = –20 to 85 °C, unless otherwise noted)
ns
100
20
70
5
70
5
0
220
30
24
30
24
4
35
30
V
80
18
45
5
45
5
0
130
12
5
12
5
4
22
20
V
Note: For test conditions, refer to Figure 15.10.1.
V: This is the value depending on f(XIN). For data formula, refer to Table 15.9.1.