ADSP-2181KS-115 Analog Devices Inc, ADSP-2181KS-115 Datasheet - Page 22
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ADSP-2181KS-115
Manufacturer Part Number
ADSP-2181KS-115
Description
IC DSP CONTROLLER 16BIT 128PQFP
Manufacturer
Analog Devices Inc
Series
ADSP-21xxr
Type
Fixed Pointr
Datasheet
1.ADSP-2181BSZ-133.pdf
(32 pages)
Specifications of ADSP-2181KS-115
Rohs Status
RoHS non-compliant
Interface
Synchronous Serial Port (SSP)
Clock Rate
28.8MHz
Non-volatile Memory
External
On-chip Ram
80kB
Voltage - I/o
5.00V
Voltage - Core
5.00V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
ADSP-2181
Parameter
IDMA Write, Long Write Cycle
Timing Requirements:
t
t
t
Switching Characteristics:
t
t
NOTES
1
2
3
4
Start of Write = IS Low and IWR Low.
If Write Pulse ends before IACK Low, use specifications t
If Write Pulse ends after IACK Low, use specifications t
This is the earliest time for IACK Low from Start of Write. For IDMA Write cycle relationships, please refer to the User’s Manual.
IKW
IKSU
IKH
IKLW
IKHW
IACK Low before Start of Write
IAD15–0 Data Setup before IACK Low
IAD15–0 Data Hold after IACK Low
Start of Write to IACK Low
Start of Write to IACK High
IAD15–0
IACK
IWR
IS
Figure 16. IDMA Write, Long Write Cycle
IKSU
4
IDSU
t
, t
IKW
, t
1
IKH
IDH
.
.
2, 3
2, 3
t
IKHW
–22–
t
IKSU
t
IKLW
DATA
Min
0
0.5t
2
1.5t
CK
CK
+ 10
t
IKH
Max
15
Unit
ns
ns
ns
ns
ns
REV. D