Tandy 1000 HX Technical Reference Manual page 99

8088
A.C. CHARACTERISTICS (Continued)
TIMING RESPONSES
Symbol
TCLAV
TCLAX
TCLAZ
TLHLL
TCLLH
TCHLL
TLLAX
TCLDV
TCHDX
TWHDX
TCVCTV
TCHCTV
TCVCTX
TAZRL
TCLRL
TCLRH
TRHAV
TCLHAV
TRLRH
TWLWH
TAVAL
TOLOH
TOHOL
Parameter
Address Valid Delay
Address Hold Time
Address Float Delay
ALE Width
ALE Active Delay
ALE Inactive Delay
Address Hold Time to
ALE Inactive
Data Valid Delay
Data Hold Time
Data Hold Time after WR
Control Active Delay 1
Control Active Delay 2
Control Inactive Delay
Address Float to READ
Active
RD Active Delay
RD Inactive Delay
RD Inactive to Next
Address Active
HLDA Valid Delay
RD Width
WR Width
Address Valid to ALE Low
Output Rise Time
Output Fall Time
8088
Min
10
10
TCLAX
TCLCH-20
TCHCL-10
10
10
TCLCH-30
10
10
10
0
10
10
TCLCL-45
10
2TCLCL-75
2TCLCL-60
TCLCH-60
Max
110
80
80
85
110
110
110
110
165
150
160
20
12
8088-2
Mln
10
10
TCLAX
TCLCH-10
TCHCL-10
10
10
TCLCH-30
10
10
10
0
10
10
TCLCL-40
10
2TCLCL-50
2TCLCL-40
TCLCH-40
Max
70
50
50
55
60
70
60
70
100
80
100
20
12
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test
Conditions
From 0.8V to 2.0V
From 2.0V to 0.8V
NOTES:
•For Extended Temperature EXPRESS V
C
c = 5V ± 5 %
1. Signal at 8284A shown for reference only. See 8284A data sheet for the most recent specifications.
2. Set up requirement for asynchronous signal only to guarantee recognition at next CLK.
3. Applies only to T2 state (8 ns into T3 state).
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