Intel MCS-80/85 Computer Hardware User Manual


 
Part No.
AC. Parameter
Min. Max.
(ns) (ns)
tRO
200
tRA &
tWA
0
8251A
tow
150
two
0
tRR
&
tww
250
tAR
&
tAw
0
tRO
200
tRA
5
tWA
30
8253-5
tow
250
two
30
tRR &
tww
300
tRV
1000
tAR &
tAW
50
tRO
200
tRA
0
tWA
20
8255A-5
tow
100
two
30
tRR &
tww
300
tRV
850
tAR &
tAw
0
tRO
200
tRA&
tWA
0
tow
200
8257-5
two
0
tRR
250
tww
200
tAR
0
tAW
20
tAD
200
tRO
150
tCA
0
8271
&
tow
150
8273
two
0
tRR&
tww
250
tAC
0
tRO
200
tRA&
tWA
0
8275
tow
150
two
0
tRR&tww
250
tAP &
tAW
0
tAD
250
tRO
150
tRA &
tWA
0
8279-5
tow
150
two
0
tRR&tww
250
tRCY
1000
tAP &
tAW
0
Table
6.
Peripherals vs. 8085A-2
A1-24
808SA-2
AC. Parameter
tRO
tCA
tow
two
tcc
tAC
tRO
tCA
tCA
tow
two
tcc
tRV
tAC
tRO
tCA
tCA
tow
two
tcc
tRV
tAC
tRO
tCA
tow
two
tcc
tcc
tAC
tAC
tAD
tRO
tCA
tow
two
tcc
tAC
tRO
tCA
tow
two
tcc
tAC
tAD
tRO
tCA
tow
two
tcc
tRV
tAC
Margin
vs.
-2
Spec.
(ns)
*150
60
80
60
*180
*150
55
60
*180
30
*130
**
65
*150
60
40
130
30
*130
**
115
*150
60
30
60
*180
30
115
95
*350
*200
60
80
80
*180
115
*150
60
80
60
*180
115
300
200
60
80
60
*180
**
115
'With
1 "Wait State"
**Must
allow for in Software