參數(shù)資料
型號(hào)： ADSP-2141LKS-N1
廠商： ANALOG DEVICES INC
元件分類： 加密電路
英文描述： DSP
中文描述： TELECOM, DATA ENCRYPTION CIRCUIT, PQFP208
封裝： METRIC, PLASTIC, QFP-208
文件頁(yè)數(shù)： 16/39頁(yè)
文件大?。?/td> 257K
代理商： ADSP-2141LKS-N1
REV. 0
ADSP-2141L
–16–
ABSOLUTE MAXIMUM RATINGS
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +4.6 V
Input Voltage . . . . . . . . . . . . . . . . . . . . –0.5 V to V
DD
+ 0.5 V
Output Voltage Swing . . . . . . . . . . . . . –0.5 V to V
DD
+ 0.5 V
Operating Temperature Range (Ambient) . . . . . 0
°
C to 70
°
C
Storage Temperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Lead Temperature (5 sec) MQFP . . . . . . . . . . . . . . . . . 280
°
C
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADSP-2141L features proprietary ESD protection circuitry, permanent damage
may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
Frequency Dependency For Timing Specifications
t
CK
is defined as 0.5t
CKI
. The ADSP-2141L uses an input clock
with a frequency equal to half the instruction rate: a 20.0 MHz
input clock (which is equivalent to 50 ns) yields a 25 ns processor
cycle (equivalent to 40 MHz). t
CK
values within the range of 0.5t
CKI
period should be substituted for all relevant timing parameters to
obtain the specification value.
Example:
t
CKH
= 0.5t
CK
– 7
ns
= 0.5 (25
ns
) – 7
ns
= 8
ns
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