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參數(shù)資料
| 型號(hào)： | X68257SM |
| 英文描述： | E2 Micro-Peripheral |
| 中文描述： | E2微型外設(shè) |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 70K |
| 代理商： | X68257SM |
X68257
10
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
6539 PGM T11
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.
tBLC
CE
AS
A/D0–A/D7
A8–A14
E
R/W
AIN
DIN
An
OPERATION
BYTE 0
BYTE 1
BYTE 2
LAST BYTE
READ (1)(2)
AFTER tWC READY FOR
NEXT WRITE OPERATION
tWC
6539 FHD F07.1
AIN
DIN
AIN
DIN
AIN
DIN
AIN
DIN
AIN
ADDR
AIN
Next Address
An
An
An
An
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