stlc5464 STMicroelectronics, stlc5464 Datasheet - Page 48

• Manufacturer Part Number: stlc5464
• Description: Multi-hdlcwith Switching Matrix Associated
• Manufacturer: STMicroelectronics

STLC5464
VII - MICROPROCESSOR TIMING (continued)
VII.2 - 80C188 MOD0=1, MOD1=1, MOD2=0
Figure 37 : 80C188 Read Cycle
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Symbol
t12
t1
t2
t3
t4
t5
t6
t7
t8
Delay Ready / Chip Select (if t3 > t1), (30pF)
Hold Time Chip Select / NRD
Delay Ready / ALE (if t1 > t3), (30pF)
Width ALE
Set-up Time Address / ALE
Hold Time Address / ALE
Data Valid before Ready
Data Valid after NRD (30pF)
Delay NDS / NCS
NCS0/1
READY
NAS /ALE
NDS /NRD
AD0/7
R/W / NWR
t5
t4
Parameter
A0/7
t12
t3
t6
t1
t7
D0/7
Min.
10
20
0
0
5
5
0
0
0
t2
t8
Typ.
Max.
20
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns