參數(shù)資料
型號: X68C75PI
英文描述: Port Expander and E2 Memory
中文描述: 端口擴展和E2內(nèi)存
文件頁數(shù): 21/26頁
文件大小: 123K
代理商: X68C75PI
21
X68C75 SLIC
E
2
Port Write Diagram
PORT WRITE TIMING
No.
Symbol
1
PW
ASH
2
t
WCS
3
t
WH
4
t
WV
5
t
AVLL
6
t
LLAX
7
t
DVWH
8
t
WHDX
9
t
SVSX
10
t
QVSV
11
t
POS
12
P
WEH
Parameter
Min.
80
20
10
30
20
30
50
10
120
Max.
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2899 PGM T13.1
AS Pulse Width
Write Chip Select Setup Time
Write Pulse Hold Time
Write Pulse Valid to E Rise
Address Setup Time
Write Address Hold Time
Data Setup Time
Data Hold Time
Strobe Pulse Width
Strobe Access Time
Port Output Setup Time
E Clock Pulse Width
40
40
150
A15–A8
CE
AS
R/W
E
AD7–AD0
STRA/STRB* (OUT)
PA7:0 / PB7:0
2899 ILL F27.1
5
1
2
6
4
12
6
11
3
9
7
8
10
ADDRESS
A15-A8
ADDRESS
A7-A0
NEW PORT DATA VALID
PREVIOUS PORT DATA
NOTE: *Figure shows active HIGH strobes.
DATA VALID
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