參數(shù)資料
型號(hào): MD2203
廠商: Electronic Theatre Controls, Inc.
英文描述: Disk OnChip 2000 DIP
中文描述: 2000年雙酯片上磁盤
文件頁(yè)數(shù): 17/21頁(yè)
文件大小: 948K
代理商: MD2203
DiskOnChip 2000 DIP
7.9.2 Write Cycle Timing
CE#
T
W
(WE)
OE#
WE#
A[0..12]
T
HO
(A)
T
SU
(A)
T
HO
(CE1)
T
HO
(CE0)
T
SU
(D)
T
HO
(D)
T
REC
T
HO
(CE0)
T
SU
(CE1)
D[0..7]
Figure 6: Write Cycle
Symbol
3.3V
5V
Description
Min (ns)
Max (ns)
Min (ns)
Max (ns)
Notes
T
SU
(A)
Address to WE#
è
setup time
0
10
T
HO
(A)
WE#
è
to Address hold time
35
56
T
W
(WE)
WE# asserted width
62
98
T
SU
(CE0)
CE#
è
to WE#
è
setup time
0
0
1
T
HO
(CE0)
WE#
to CE# = 0 hold time
0
0
2
T
HO
(CE1)
OE# or WE#
to CE# = 1 hold time
8
42
T
SU
(CE1)
CE#
to WE# or OE#
è
setup time
8
42
T
REC
WE#
to start of next cycle
22
59
T
SU
(D)
D to WE#
setup time
50
48
T
HO
(D)
WE#
to D hold time
0
40
Note 1:
CE# may be asserted any time before or after WE# is asserted. If CE# is asserted after WE#, all timing relative to
WE# asserted will be referenced instead to the time CE# was asserted.
Note 2
: CE# may be negated any time before or after WE# is negated. If CE# is negated before WE#, all timing relative
to WE# negated will be referenced instead to the time CE# was negated.
91-SR-002-42-8L Rev.
3.4
17
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