參數(shù)資料
型號: DSP1628
英文描述: TVS 400W 60V BIDIRECT SMA
中文描述: 澄清,串行I /設(shè)備的DSP1620/27/28/29 O控制注冊說明
文件頁數(shù): 97/114頁
文件大?。?/td> 804K
代理商: DSP1628
Preliminary Data Sheet
February 1997
DSP1628 Digital Signal Processor
95
Lucent Technologies Inc.
10 Timing Characteristics for 2.7 V Operation
(continued)
* W = number of wait-states.
Figure 20. External Memory Data Write Timing Diagram
Table 82. Timing Characteristics for External Memory Data Write (All Enables)
Abbreviated
Reference
Parameter
19.2 ns
Min
0
0
12.5 ns
Min
0
0
Unit
Max
0
Max
0
t131
t132
t133
t134
t135
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)
RWN Width (low to high)
Write Address Setup (address valid to RWN
low)
ns
ns
ns
ns
ns
T(1 + W)/2 – 4
T(1 + W) – 5
T(1 + W)/2 – 3
T(1 + W) – 4
t136
0
0
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 (C).a
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