ADSP-2181KS-115 Analog Devices Inc, ADSP-2181KS-115 Datasheet - Page 18
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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
Memory Write
Switching Characteristics:
t
t
t
t
t
t
t
t
t
t
w = wait states
xMS = PMS, DMS, CMS, IOMS, BMS.
DW
DH
WP
WDE
ASW
DDR
CWR
AW
WRA
WWR
t
CK
.
Data Setup before WR High
Data Hold after WR High
WR Pulsewidth
WR Low to Data Enabled
A0–A13, xMS Setup before WR Low
Data Disable before WR or RD Low
CLKOUT High to WR Low
A0–A13, xMS, Setup before WR Deasserted
A0–A13, xMS Hold after WR Deasserted
WR High to RD or WR Low
DMS, PMS,
BMS, CMS,
CLKOUT
A0–A13
IOMS
WR
RD
D
Figure 12. Memory Write
t
CWR
t
ASW
–18–
t
WDE
t
AW
t
WP
Min
0.5t
0.25t
0.5t
0
0.25t
0.25t
0.25t
0.75t
0.25t
0.5t
t
DW
CK
CK
CK
CK
CK
CK
CK
CK
CK
– 7 + w
– 5 + w
– 5
– 2
– 4
– 5
– 9 + w
– 3
– 4
t
WRA
t
DH
t
WWR
t
DDR
Max
0.25 t
CK
+ 7
REV. D
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns