參數(shù)資料
型號: DSP1627
英文描述: TVS 400W 6.5V BIDIRECT SMA
中文描述: DSP1627數(shù)字信號處理器
文件頁數(shù): 107/154頁
文件大小: 2365K
代理商: DSP1627
Data Sheet
March 2000
DSP1627 Digital Signal Processor
Lucent Technologies Inc.
107
11 Timing Characteristics for 3.0 V Operation
(continued)
* W = number of wait-states.
Figure 44. External Memory Data Write Timing Diagram
Table 122. Timing Characteristics for External Memory Data Write (All Enables)
Abbreviated
Reference
Parameter
10 ns
Unit
Min
0
0
Max
0
t131
t132
t133
t134
Write Overlap (enable
low to 3-state)
RWN Advance (RWN high to enable high)
RWN Delay (enable
low to RWN
low)
Write Data Setup (data valid to RWN high)
ns
ns
ns
ns
T(1 + W)/2 –
3
T(1 + W) – 4
0
t135
t136
RWN Width (low to high)
Write Address Setup (address valid to RWN low)
ns
ns
ERAMLO
EROM
CKO
AB
RWN
DB
WRITE ADDRESS
READ ADDRESS
V
OH
V
OL
V
OH
V
OL
V
OH
V
OL
V
OH
V
OL
V
OH
V
OL
WRITE DATA
READ
W* = 1
t131
t132
t134
t133
t135
t136
(MWAIT = 0x1002)
W* = 2
V
OH
V
OL
5-4022 (F).a
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