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參數資料
| 型號： | ADSP-21MSP58BST-104 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 數字信號處理 |
| 英文描述： | DSP Microcomputers |
| 中文描述： | 24-BIT, 13 MHz, OTHER DSP, PQFP100 |
| 封裝： | METRIC, PLASTIC, TQFP-100 |
| 文件頁數： | 22/40頁 |
| 文件大小： | 372K |
| 代理商： | ADSP-21MSP58BST-104 |
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REV. 0
–22–
ADSP-21msp58/59
ME MORY RE QUIRE ME NT S
T his chart links common memory device specification
names and ADSP-21msp58/59 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
Setup
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
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
E SD SE NSIT IVIT Y
T he ADSP-21msp58/59 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-21msp58/59 features proprietary ESD protection circuitry to dissipate high energy
discharges (Human Body Model).
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.
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 in-
dividual device, the values given in this data sheet reflect statisti-
cal 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.
TIMNGPARAMETERS
WARNING!
ESD SENSITIVE DEVICE
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) . . . . . . . . . . . . . . . . . . . . . . +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.
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