X68C75 Datasheet, PDF (20/26 Pages) Xicor Inc. – Port Expander and E2 Memory

X68C75 SLIC^® E²
Port Read Diagram
* ^{STRA/STRB (IN)}
PA7:0/PB7:0
IRQ
AS
1
2
3
DATA VALID
4
INTERRUPT
RECOGNIZED
6
5
R/W
A15–A8
E
89
PORT
ADDRESS
10
12
8
9
AD7–AD0
A7-A0
NOTE: *Figure shows active HIGH strobes.
PORT READ TIMING
No. Symbol
Parameter
1
t_SVSX Strobe Pulse Width
2
t_IS
Data Port Setup
3
t_IH
Data Port Hold Time
4
t_SVIV Interrupt Request to Strobe
5
t_IAD
IRQ to AS
6 PW_ASH AS Pulse Width
7
t_RXIX E to IRQ High
8
t_ASL Address setup time
9
t_AHL Address hold time
10
t_ASE AS to E High
11 t_ACCE E Access Time
12
t_RWS R/W Setup Time
13
t_RWH R/W Hold time
20
11
Min.
80
20
30
0
80
30
20
30
30
30
10
7
13
DATA
VALID
2899 ILL F26.2
Max.
50
120
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2899 PGM T12.1