參數(shù)資料
型號: TS68EN360VR33L
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: 32-bitQuad Integrated Communication Controller
中文描述: 32-BIT, 33 MHz, RISC PROCESSOR, CPGA241
封裝: CERAMIC, PGA-241
文件頁數(shù): 12/82頁
文件大小: 874K
代理商: TS68EN360VR33L
12
TS68EN360
2113A–HIREL–03/02
T
J
=T
A
+(P
D
·
θ
JA
)
P
D
=(V
DD
·
I
DD
)+P
I/O
WhereP
I/O
isthepowerdissipationonpins.
PowerConsiderations
Theaveragechip-junctiontemperature,T
J
,in
°
Ccanbeobtainedfrom:
T
J
=T
A
÷
(P
D
·
Θ
JA
)
where:
(1)
T
A
=AmbientTemperature,
°
C
Θ
JA
=PackageThermalResistance,
Junction-to-Ambient,C/W
P
D
=P
INT
+P
I/O
P
INT
=I
CC
·V
CC
,Watts-chipInternalPower
P
I/O
=PowerDissipationonInputandOutputPins-UserDetermined
Formostapplications,P
I/O
<0.3·P
INT
andcanbeneglected.
AnapproximaterelationshipbetweenP
D
andT
J
(ifP
I/O
isneglected)is:
P
D
=K
÷
(T
J
+273°C)
SolvingEquations(1)and(2)forKgives:
K=P
D
·(T
A
+273°C)+
Θ
JA
·P
D
whereKisaconstantpertainingtotheparticularpart.KcanbedeterminedfromEqua-
tion(3)bymeasuringP
D
(atthermalequilibrium)foraknowT
A
.UsingthisvalueofK,
thevaluesofP
D
andT
J
canbeobtainedbysolvingEquations(1)and(2)iterativelyfor
anyvalueofT
A
.
(2)
2
(3)
Table4.
RecommendedConditionsOfUse
Unlessotherwisestated,allvoltagesarereferencedtothereferenceterminal.
Symbol
Parameter
Min.
Typ.
Max.
Unit
V
CC
SupplyVoltageRange
+4.75
+5.25
V
V
IL
LogicLowLevelInputVoltageRange
GND
+0.8
V
V
IH
LogicHighLevelInputVoltageRange
+2.0
V
CC
V
T
case
OperatingTemperature
-55
+125
°
C
V
OH
HighLevelOutputVoltage
+2.4
V
f
sys
SystemFrequency
(For25MHzversion)
25
MHz
(For33MHzversion)
33
MHz
Table5.
ThermalCharacteristics
Symbol
Parameter
Value
Unit
θ
JC
ThermalResistance-JunctiontoCase
240-pinCerquad
2
°
C/W
241-pinPGA
7
θ
JA
ThermalResistance-JunctiontoAmbient
240-pinCerquad
27.4
°
C/W
241-pinPGA
22.8
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