ADSP-2181BS-133 Analog Devices Inc, ADSP-2181BS-133 Datasheet - Page 18

• Manufacturer Part Number: ADSP-2181BS-133
• Description: IC DSP CONTROLLER 16BIT 128PQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2181BS-133

• Rohs Status: RoHS non-compliant
• Interface: Synchronous Serial Port (SSP)
• Clock Rate: 33.3MHz
• 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

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