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參數資料
型號： ADSP21020
廠商： Analog Devices, Inc.
元件分類： 數字信號處理
英文描述： 32/40-Bit IEEE Floating-Point DSP Microprocessor
中文描述： 32/40 IEEE浮點DSP微處理器
文件頁數： 12/32頁
文件大小： 425K
代理商： ADSP21020
RECOMMENDED OPERATING CONDITIONS
K Grade
Min
B Grade
Min
T Grade
Min
Parameter
Max
Max
Max
Unit
V
DD
T
AMB
Supply Voltage
Ambient Operating Temperature
4.50
0
5.50
+70
4.50
–40
5.50
+85
4.50
–55
5.50
+125
V
°
C
Refer to Environmental Conditions for information on thermal specifications.
ELECTRICAL CHARACTERISTICS
Parameter
Test Conditions
Min
Max
Unit
V
IH
V
IHCR
V
IL
V
ILC
V
OH
V
OL
I
IH
I
IL
I
ILT
I
OZH
I
OZL
I
DDIN
Hi-Level Input Voltage
1
Hi-Level Input Voltage
2, 12
Lo-Level Input Voltage
1, 12
Lo-Level Input Voltage
2
Hi-Level Output Voltage
3, 11
Lo-Level Output Voltage
3, 11
Hi-Level Input Current
4, 5
Lo-Level Input Current
4
Lo-Level Input Current
5
Tristate Leakage Current
6
Tristate Leakage Current
6
Supply Current (Internal)
7
V
DD
= max
V
DD
= max
V
DD
= min
V
DD
= max
V
DD
= min, I
OH
= –1.0 mA
V
DD
= min, I
OL
= 4.0 mA
V
DD
= max, V
IN
= V
DD
max
V
DD
= max, V
IN
= 0 V
V
DD
= max, V
IN
= 0 V
V
DD
= max, V
IN
= V
DD
max
V
DD
= max, V
IN
= 0 V
t
CK
= 30–33 ns, V
DD
= max, V
IHCR
= 3.0 V,
V
IH
= 2.4 V, V
IL
= V
ILC
= 0.4 V
V
DD
= max, V
IN
= 0 V or V
DD
max
f
IN
= 1 MHz, T
CASE
= 25
°
C, V
IN
= 2.5 V
2.0
3.0
V
V
V
V
V
V
μ
A
μ
A
μ
A
μ
A
μ
A
mA
0.8
0.6
2.4
0.4
10
10
350
10
10
490
I
DDIDLE
C
IN
Supply Current (Idle)
8
Input Capacitance
9, 10
150
10
mA
pF
NOTES
l
Applies to: PMD47–0, PMACK,
PMTS
, DMD39–0, DMACK,
DMTS
,
IRQ
3–0. FLAG3–0,
BR
, TMS, TDI.
2
Applies to: CLKIN, TCK.
3
Applies to: PMA23–0, PMD47–0,
PMS
1–0,
PMRD
,
PMWR
, PMPAGE, DMA31–0, DMD39–0,
DMS
3–0,
DMRD
,
DMWR
, DMPAGE, FLAG3–0,
TIMEXP,
BG
.
4
Applies to: PMACK,
PMTS
, DMACK,
DMTS
,
IRQ
3–0,
BR
, CLKIN,
RESET
, TCK.
5
Applies to: TMS, TDI,
TRST
.
6
Applies to: PMA23–0, PMD47–0,
PMS
1–0,
PMRD
,
PMWR
, PMPAGE, DMA31–0, DMD39–0,
DMS
3–0,
DMRD
,
DMWR
, DMPAGE, FLAG3–0, TDO.
7
Applies to IVDD pins. At t
CK
= 30–33 ns, I
(typical) = 230 mA; at t
= 40 ns, I
(max) = 420 mA and I
(typical) = 200 mA; at t
= 50 ns,
I
(max) = 370 mA and I
(typical) = 115 mA. See “Power Dissipation” for calculation of external (EVDD) supply current for total supply current.
8
Applies to IVDD pins. Idle refers to ADSP-21020 state of operation during execution of the IDLE instruction.
9
Guaranteed but not tested.
10
Applies to all signal pins.
11
Although specified for TTL outputs, all ADSP-21020 outputs are CMOS-compatible and will drive to V
DD
and GND assuming no dc loads.
12
Applies to
RESET
,
TRST
.
ABSOLUTE MAXIMUM RATINGS*
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Input Voltage . . . . . . . . . . . . . . . . . . . . –0.3 V to V
DD
+ 0.3 V
Output Voltage Swing . . . . . . . . . . . . . –0.3 V to V
DD
+ 0.3 V
Load Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 pF
Operating Temperature Range (Ambient) . . –55
°
C to +125
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (10 seconds) CPGA . . . . . . . . . . . +300
°
C
ESD SENSITIVITY
The ADSP-21020 features proprietary input protection circuitry to dissipate high energy discharges
(Human Body Model). Per method 3015 of MIL-STD-883, the ADSP-21020 has been classified
as a Class 3 device, with the ability to withstand up to 4000 V ESD.
Proper ESD precautions are strongly recommended to avoid functional damage or performance
degradation. Charges readily accumulate on the human body and test equipment and discharge
without detection. Unused devices must be stored in conductive foam or shunts, and the foam
should be discharged to the destination socket before devices are removed. For further information
on ESD precautions, refer to
Analog Devices
’
ESD Prevention Manual
.
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. These are stress ratings only and functional
operation of the device at these or any other conditions above those indicated in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
REV. C
–12–
ADSP-21020–SPECIFICATIONS
WARNING!
ESD SENSITIVE DEVICE
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相關代理商/技術參數
參數描述
ADSP-21020 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
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