ADSP-2181BST-115 Analog Devices Inc, ADSP-2181BST-115 Datasheet - Page 17

• Manufacturer Part Number: ADSP-2181BST-115
• Description: IC DSP CONTROLLER 16BIT 128TQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2181BST-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-TQFP, 128-VQFP

REV. D
Parameter
Memory Read
Timing Requirements:
t
t
t
Switching Characteristics:
t
t
t
t
t
w = wait states
xMS = PMS, DMS, CMS, IOMS, BMS.
RDD
AA
RDH
RP
CRD
ASR
RDA
RWR
t
CK
.
RD Low to Data Valid
A0–A13, xMS to Data Valid
Data Hold from RD High
RD Pulsewidth
CLKOUT High to RD Low
A0–A13, xMS Setup before RD Low
A0–A13, xMS Hold after RD Deasserted
RD High to RD or WR Low
BMS, IOMS,
DMS, PMS,
CLKOUT
A0–A13
CMS
WR
RD
D
Figure 11. Memory Read
t
CRD
t
ASR
t
AA
–17–
t
RDD
t
RP
Min
0
0.5t
0.25t
0.25t
0.25t
0.5t
CK
CK
CK
CK
CK
– 5 + w
– 5
– 5
– 4
– 3
t
RDA
t
RDH
t
RWR
Max
0.5t
0.75t
0.25t
CK
CK
CK
ADSP-2181
– 9 + w
– 10.5 + w
+ 7
Unit
ns
ns
ns
ns
ns
ns
ns
ns