ADSP-21990BST Analog Devices Inc, ADSP-21990BST Datasheet - Page 29

• Manufacturer Part Number: ADSP-21990BST
• Description: IC DSP CONTROLLER 16BIT 176LQFP
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-21990BST

• Rohs Status: RoHS non-compliant
• Interface: SPI, SSP
• Clock Rate: 160MHz
• Non-volatile Memory: External
• On-chip Ram: 20kB
• Voltage - I/o: 3.30V
• Voltage - Core: 2.50V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 176-LQFP

MS3–0
A21–0
D15–0
IOMS
BMS
ACK
WR
RD
t
CSWS
t
t
DWSAK
CDA
t
AWS
Figure 10. External Port Write Cycle Timing
Rev. A | Page 29 of 50 | August 2007
t
AKW
t
WW
t
DSW
t
t
CDD
DHW
t
t
WSCS
WSA
t
WWR
ADSP-21990