X88C75 查看數據表（PDF） - Xicor -> Intersil
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X88C75 Datasheet PDF : 27 Pages
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X88C75 SLIC® E2
Port Read Diagram
STRA/STRB* (IN)
PA7:0/PB7:0
IRQ
ALE
1
2
3
DATA VALID
4
5
INTERRUPT
RECOGNIZED
6
89
A15–A8
PORT
ADDRESS
10
RD/PSEN
8
9
AD7–AD0
A7-A0
NOTE: *Figure shows active HIGH strobes.
7
11
DATA
VALID
2887 ILL F26.1
PORT READ TIMING
No. Symbol
Parameter
1 tSVSX Strobe Pulse Width
2
tDVSV Data Port Setup
3 tSVDX Data Port Hold Time
4
tSVIV
Interrupt Request to Strobe
5
tIAD
IRQ to ALE
6
tLHLL
ALE Pulse Width
7
tRXIX
RD to IRQ
8 tAVLL Address setup time
9 tLLAX Address hold time
10 tLLWL ALE to RD LOW
11 tRLDV RD Access Time
Min.
80
20
30
0
80
30
20
30
30
Max.
50
120
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2887 PGM T13.2
20
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