X88C75 Datasheet, PDF (22/27 Pages) Xicor Inc. – Port Expander and E2 Memory

X88C75 SLIC^® E²
LAM (Latch Address Mode) Diagram
A15–A8
ALE
2
ADDRESS
A15-A8
3
1
AD7–AD0
PB7:0
2
ADDRESS
A7-A0
DATA VALID
3
4
ADDRESS A7–A0
2887 ILL F31
LAM TIMING
No. Symbol
1
t_LHLL
2
t_AVLL
3
t_LLAX
4
t_POS
Parameter
ALE Pulse Width
Address Setup Time
Address Hold Time
Port Output Setup Time
Min.
80
20
30
Max.
20
Units
ns
ns
ns
ns
2887 PGM T15
SYMBOL TABLE
WAVEFORM INPUTS
OUTPUTS
Must be
steady
May change
from LOW
to HIGH
May change
from HIGH
to LOW
Don’t Care:
Changes
Allowed
N/A
Will be
steady
Will change
from LOW
to HIGH
Will change
from HIGH
to LOW
Changing:
State Not
Known
Center Line
is High
Impedance
22