DS2154
Table 16-4. AC Characteristics—Nonmultiplexed Parallel Port (MUX = 0)
(VDD = 5V ±5%, TA = 0°C to +70°C for DS2154L, TA = -40°C to +85°C for DS2154LN.)
(See Figure 16-10, Figure 16-11, Figure 16-12, and Figure 16-13.)
PARAMETER
SYMBOL MIN
TYP
MAX UNITS NOTES
Setup Time for A0 to A7 Valid to CS
t1
t2
t3
t4
t5
t6
t7
t8
t9
0
ns
Active
Setup Time for CS Active to Either RD ,
WR , or DS Active
0
ns
Delay Time from Either RD or DS
75
20
ns
ns
ns
ns
ns
ns
ns
Active to Data Valid
Hold Time from Either RD , WR , or DS
Inactive to CS Inactive
0
Hold Time from CS Inactive to Data
5
Bus Tri-State
Wait Time from Either WR or DS
Active to Latch Data
75
10
10
10
Data Setup Time to Either WR or DS
Inactive
Data Hold Time to Either WR or DS
Inactive
Address Hold from Either WR or DS
Inactive
Figure 16-10. Intel Bus Read AC Timing (BTS = 0/MUX = 0)
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ROCHESTER [ Rochester Electronics ]
