參數(shù)資料
型號(hào): X88C75LM
英文描述: Port Expander and E2 Memory
中文描述: 端口擴(kuò)展和E2內(nèi)存
文件頁(yè)數(shù): 19/27頁(yè)
文件大小: 125K
代理商: X88C75LM
X88C75 SLIC
E
2
19
WR
Controlled Write Cycle
Symbol
Parameter
Min.
Max.
Units
t
LHLL
t
AVLL
t
LLAX
t
DVWH
t
WHDX
t
ELLL
t
WLWH
t
WRS
t
WRH
t
BLC
t
WC (7)
ALE Pulse Width
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Chip Enable Setup Time
WR
Pulse Width
WR
Setup Time
WR
Hold Time
Byte Load Time (Page Write)
Write Cycle Time
80
20
30
50
30
7
120
30
20
0.5
ns
ns
ns
ns
ns
ns
ns
ns
ns
μ
s
ms
2887 PGM T12
100
5
WR
Controlled Write Timing Diagram
Note:
(7)
t
WC
is the minimum cycle time to be allowed from the system perspective unless polling techniques are used. It is the maximum
time the device requires to automatically complete the internal write operation.
ALE
A/D0–A/D7
A8–A12
WR
AIN
tDVWH
DIN
2887 ILL F25
tWHDX
tWRH
tWRH
tLHLL
tAVLL
tLLAX
tWRS
tWLWH
ADDRESS
CE
tELLL
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