參數(shù)資料
型號: ADSP-BF561
廠商: Analog Devices, Inc.
元件分類: 通用總線功能
英文描述: Synchronous 4-Bit Up/Down Binary Counters With Dual Clock and Clear 16-PDIP 0 to 70
中文描述: 嵌入式Blackfin處理器的對稱多處理器
文件頁數(shù): 22/52頁
文件大?。?/td> 508K
代理商: ADSP-BF561
Rev. PrC
|
Page 22 of 52
|
April 2004
ADSP-BF561
Preliminary Technical Data
TIMING SPECIFICATIONS
Table 9
and
Table 12
describe the timing requirements for the
ADSP-BF561 clocks. Take care in selecting MSEL, SSEL, and
CSEL ratios so as not to exceed the maximum core clock, system
clock and Voltage Controlled Oscillator (VCO) operating fre-
quencies, as described in
Absolute Maximum Ratings on
Page 21
.
Table 12
describes Phase-Locked Loop operating
conditions.
Table 9. Core and System Clock Requirements—ADSP-BF561SKBCZ500
Parameter
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
Minimum
na
na
2
2.25
2.70
3.20
4.00
Maximum
Unit
ns
ns
ns
ns
ns
ns
ns
Core Cycle Period (V
DDINT
=1.4 V–± 50 mV)
Core Cycle Period (V
DDINT
=1.35 V–5%)
Core Cycle Period (V
DDINT
=1.2 V–5%)
Core Cycle Period (V
DDINT
=1.1 V–5%)
Core Cycle Period (V
DDINT
=1.0 V–5%)
Core Cycle Period (V
DDINT
=0.9 V–5%)
Core Cycle Period (V
DDINT
=0.8 V)
Table 10. Core and System Clock Requirements—ADSP-BF561SKBCZ600X
Parameter
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
Minimum
na
na
1.66
2.25
2.70
3.20
4.00
Maximum
Unit
ns
ns
ns
ns
ns
ns
ns
Core Cycle Period (V
DDINT
=1.4 V–± 50 mV)
Core Cycle Period (V
DDINT
=1.35 V–5%)
Core Cycle Period (V
DDINT
=1.2 V–5%)
Core Cycle Period (V
DDINT
=1.1 V–5%)
Core Cycle Period (V
DDINT
=1.0 V–5%)
Core Cycle Period (V
DDINT
=0.9 V–5%)
Core Cycle Period (V
DDINT
=0.8 V)
Table 11. Core and System Clock Requirements—ADSP-BF561SBB600
Parameter
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
t
CCLK
Minimum
na
1.66
2.0
2.25
2.70
3.20
4.00
Maximum
Unit
ns
ns
ns
ns
ns
ns
ns
Core Cycle Period (V
DDINT
=1.4 V–± 50 mV)
Core Cycle Period (V
DDINT
=1.35 V–5%)
Core Cycle Period (V
DDINT
=1.2 V–5%)
Core Cycle Period (V
DDINT
=1.1 V–5%)
Core Cycle Period (V
DDINT
=1.0 V–5%)
Core Cycle Period (V
DDINT
=0.9 V–5%)
Core Cycle Period (V
DDINT
=0.8 V)
Table 12. Phase-Locked Loop Operating Conditions
Parameter
Voltage Controlled Oscillator (VCO) Frequency
Minimum
50
Maximum
Maximum CCLK
Unit
MHz
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ADSP-BF561SBB600 制造商:Analog Devices 功能描述:IC MULTIPROCESSOR