X68C75 Datasheet, PDF (21/26 Pages) Xicor Inc. – Port Expander and E2 Memory

X68C75 SLIC^® E²
Port Write Diagram
A15–A8
CE
AS
5
ADDRESS
A15-A8
2
6
1
6
7
8
AD7–AD0
E
R/W
STRA/STRB* (OUT)
ADDRESS
A7-A0
DATA VALID
12
4
3
10
9
11
PA7:0 / PB7:0
PREVIOUS PORT DATA
NOTE: *Figure shows active HIGH strobes.
NEW PORT DATA VALID
2899 ILL F27.1
PORT WRITE TIMING
No. Symbol
Parameter
1 PW_ASH AS Pulse Width
2 t_WCS Write Chip Select Setup Time
3
t_WH
Write Pulse Hold Time
4
t_WV
Write Pulse Valid to E Rise
5 t_AVLL Address Setup Time
6 t_LLAX Write Address Hold Time
7
t_DVWH Data Setup Time
8
t_WHDX Data Hold Time
9 t_SVSX Strobe Pulse Width
10 t_QVSV Strobe Access Time
11 t_POS
Port Output Setup Time
12 P_WEH E Clock Pulse Width
Min.
80
20
10
30
20
30
50
10
120
150
Max.
40
40
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2899 PGM T13.1
21