8088
A.C. CHARACTERISTICS (Continued)
TIMING RESPONSES
8088
Min
8088-2
Min
Test
Conditions
Symbol
Parameter
Units
Max
Max
TCLML
Command Active Delay
(Note 1)
10
35
10
35
ns
TCLMH Command Inactive Delay
(Note 1)
10
35
10
35
65
ns
ns
TRYHSH READY Active to
Status Passive (Note 3)
110
TCHSV Status Active Delay
10
10
110
130
110
10
10
60
70
60
ns
ns
ns
ns
ns
ns
TCLSH
TCLAV
TCLAX
TCLAZ
TSVLH
Status Inactive Delay
Address Valid Delay
Address Hold Time
Address Float Delay
10
10
10
10
TCLAX
80
15
TCLAX
50
15
Status Valid to ALE High
(Note 1)
TSVMCH Status Valid to MCE High
(Note 1)
15
15
15
15
ns
ns
TCLLH
CLK Low to ALE Valid
(Note 1)
TCLMCH CLK Low to MCE (Note 1)
TCHLL ALE Inactive Delay (Note 1)
TCLMCL MCE Inactive Delay (Note 1)
TCLDV Data Valid Delay
15
15
15
15
15
60
ns
ns
ns
ns
ns
ns
15
10
10
5
110
10
10
5
TCHDX Data Hold Time
e
C
20–100 pF for
L
TCVNV Control Active Delay
(Note 1)
45
45
45
45
All 8088 Outputs
in Addition to
Internal Loads
TCVNX Control Inactive Delay
(Note 1)
10
0
10
0
ns
ns
TAZRL
Address Float to
Read Active
TCLRL
TCLRH
RD Active Delay
RD Inactive Delay
10
10
165
150
10
10
100 ns
80
ns
ns
b
TCLCL 45
b
TCLCL 40
TRHAV RD Inactive to Next
Address Active
TCHDTL Direction Control
Active Delay (Note 1)
50
30
50
30
ns
ns
TCHDTH Direction Control
Inactive Delay (Note 1)
TCLGL
GT Active Delay
85
85
50
50
ns
ns
ns
TCLGH GT Inactive Delay
TRLRH RD Width
b
2TCLCL 75
b
2TCLCL 50
TOLOH Output Rise Time
TOHOL Output Fall Time
20
12
20
12
ns From 0.8V to 2.0V
ns From 2.0V to 0.8V
NOTES:
1. Signal at 8284 or 8288 shown for reference only.
2. Setup requirement for asynchronous signal only to guarantee recognition at next CLK.
3. Applies only to T3 and wait states.
4. Applies only to T2 state (8 ns into T3 state).
22
INTEL [ INTEL ]
