ADSP-2181BS-115 Analog Devices Inc, ADSP-2181BS-115 Datasheet - Page 21
ADSP-2181BS-115
Manufacturer Part Number
ADSP-2181BS-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-2181BS-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
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
128-MQFP, 128-PQFP
Parameter
IDMA Write, Short Write Cycle
Timing Requirements:
t
t
t
t
Switching Characteristic:
t
NOTES
1
2
3
4
REV. D
Start of Write = IS Low and IWR Low.
End of Write = IS High or IWR High.
If Write Pulse ends before IACK Low, use specifications t
If Write Pulse ends after IACK Low, use specifications t
IKW
IWP
IDSU
IDH
IKHW
IACK Low before Start of Write
Duration of Write
IAD15–0 Data Setup before End of Write
IAD15–0 Data Hold after End of Write
Start of Write to IACK High
IAD15–0
IACK
IWR
1, 2
IS
Figure 15. IDMA Write, Short Write Cycle
IKSU
IDSU
, t
t
, t
IKW
1
IKH
IDH
.
.
2, 3, 4
2, 3, 4
t
IWP
t
IKHW
t
IDSU
–21–
DATA
t
IDH
Min
0
15
5
2
Max
15
ADSP-2181
Unit
ns
ns
ns
ns
ns