PEB 2091
PEF 2091
Electrical Characteristics
CS x DS
t AS
t AH
AD0 - AD5
ITT00718
Figure 110 Motorola Non-Multiplexed Address Timing
8.7.1.3 Timing Values of the µP interface in Parallel Mode
C
= 50pF
Load
Parameter
Symbol
tAA
min. max. unit
ALE pulse width
50
15
10
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Address setup time to ALE
Address hold time from ALE
Address latch setup time to WR, RD
Address setup time to WR, RD
Address hold time from WR, RD
ALE pulse delay
tAL
tLA
tALS
tAS
25
0
tAH
tAD
10
0
DS delay after R/W setup
R/W hold time after DS
RD pulse width
tDSD
tRWD
tRR
0
110
Data output delay from RD
Data float from RD
tRD
110
25
tDF
RD control interval
tRI
70
60
35
10
70
WR pulse width
tWW
tDW
tWD
tWI
Data setup time to WR x CS
Data hold time from WR x CS
WR control interval
Semiconductor Group
272
Data Sheet 01.99
INFINEON [ Infineon ]
