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ADSP2181 Fiches technique(PDF) 22 Page - Analog Devices

No de pièce ADSP2181
Description  DSP Microcomputer
PDF  32 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

ADSP2181 Fiches technique(HTML) 22 Page - Analog Devices

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REV. D
ADSP-2181
–22–
Parameter
Min
Max
Unit
IDMA Write, Long Write Cycle
Timing Requirements:
tIKW
IACK Low before Start of Write1
0ns
tIKSU
IAD15–0 Data Setup before
IACK Low2, 3
0.5tCK + 10
ns
tIKH
IAD15–0 Data Hold after
IACK Low2, 3
2ns
Switching Characteristics:
tIKLW
Start of Write to
IACK Low4
1.5tCK
ns
tIKHW
Start of Write to
IACK High
15
ns
NOTES
1Start of Write =
IS Low and IWR Low.
2If Write Pulse ends before
IACK Low, use specifications t
IDSU, tIDH.
3If Write Pulse ends after
IACK Low, use specifications t
IKSU, tIKH .
4This is the earliest time for
IACK Low from Start of Write. For IDMA Write cycle relationships, please refer to the User’s Manual.
IAD15–0
DATA
tIKHW
tIKW
IACK
IS
IWR
tIKLW
tIKH
tIKSU
Figure 16. IDMA Write, Long Write Cycle



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