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| 型號： | ADSP-2172 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | DSP Microcomputer(DSP 微計算機) |
| 中文描述： | 微機的DSP（數(shù)字信號處理器微計算機） |
| 文件頁數(shù)： | 18/52頁 |
| 文件大小： | 685K |
| 代理商： | ADSP-2172 |
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REV. A
–18–
ADSP-2171/ADSP-2172/ADSP-2173
ADSP-2171/ADSP-2172
ME MORY RE QUIRE ME NT S
T his chart links common memory device specification names
and ADSP-2171/ADSP-2172 timing parameters for your
convenience.
Common
Memory Device
Specification Name
Parameter
Name
Function
t
ASW
A0-A13,
DMS
,
PMS
Setup before
WR
Low
A0-A13,
DMS
,
PMS
before
WR
Deasserted
A0-A13,
DMS
,
PMS
Hold after
WR
Deasserted
Data Setup before
WR
High Data Setup T ime
Data Hold after
WR
High
RD
Low to Data Valid
A0-A13,
DMS
,
PMS
,
BMS
to Data Valid
Address Setup to
Write Start
Setup Address Setup
to Write End
Address Hold T ime
t
AW
t
WRA
t
DW
t
DH
t
RDD
t
AA
Data Hold T ime
OE
to Data Valid
Address Access T ime
ADSP-2171/ADSP-2172
ABSOLUT E MAX IMUM RAT INGS
*
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
Operating T emperature Range (Ambient) . . . .–40
°
C to +85
°
C
Storage T emperature Range . . . . . . . . . . . . . –65
°
C to +150
°
C
Lead T emperature (5 sec) T QFP . . . . . . . . . . . . . . . . +280
°
C
Lead T emperature (5 sec) PQFP . . . . . . . . . . . . . . . . . +280
°
C
*
Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. T hese 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.
E SD SE NSIT IVIT Y
T he ADSP-217x is an ESD (electrostatic discharge) sensitive device. Electrostatic charges readily
accumulate on the human body and equipment and can discharge without detection. Permanent
damage may occur to devices subjected to high energy electrostatic discharges.
T he ADSP-217x features proprietary ESD protection circuitry to dissipate high energy discharges
(Human Body Model). Per method 3015 of MIL-ST D-883, the ADSP-217x has been classified as
a Class 1 device.
Proper ESD precautions are recommended to avoid performance degradation or loss of function-
ality. Unused devices must be stored in conductive foam or shunts, and the foam should be
discharged to the destination before devices are removed.
WARNING!
ESD SENSITIVE DEVICE
GE NE RAL NOT E S
Use the exact timing information given. Do not attempt to de-
rive parameters from the addition or subtraction of others.
While addition or subtraction would yield meaningful results for
an individual device, the values given in this data sheet reflect
statistical variations and worst cases. Consequently, you cannot
meaningfully add up parameters to derive longer times.
T IMING NOT E S
Switching characteristics specify how the processor changes its
signals. You have no control over this timing; it is dependent on
the internal design. T iming requirements apply to signals that
are controlled outside the processor, such as the data input for a
read operation.
T iming requirements guarantee that the processor operates cor-
rectly with another device. Switching characteristics tell you
what the device will do under a given circumstance. Also, use
the switching characteristics to ensure any timing requirement
of a device connected to the processor (such as memory) is
satisfied.
ADSP-2171/ADSP-2172 TIMNGPARAMETERS
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADSP-2173 | DSP Microcomputer(DSP 微計算機) |
| ADSP-2181BS-115 | DSP Microcomputer |
| ADSP-2181BS-133 | DSP Microcomputer |
| ADSP-2181KS-115 | DSP Microcomputer |
| ADSP-2181KS-133 | DSP Microcomputer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADSP-2173 | 制造商:AD 制造商全稱:Analog Devices 功能描述:DSP Microcomputer |
| ADSP-2173BS-80 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADSP-2173BST-80 | 制造商:Analog Devices 功能描述:DSP Fixed-Point 16-Bit 20MHz 20MIPS 128-Pin TQFP 制造商:Rochester Electronics LLC 功能描述:16BIT FXD PT PROC 3.3V - Bulk |
| ADSP-2176-760040 | 制造商:Analog Devices 功能描述: |
| ADSP-2176-760061 | 制造商:Analog Devices 功能描述: |
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