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參數(shù)資料
| 型號： | MCF52236CAF50 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, FLASH, 50 MHz, RISC MICROCONTROLLER, PQFP80 |
| 封裝： | 14 X 14 MM, ROHS COMPLIANT, PLASTIC, LQFP-80 |
| 文件頁數(shù)： | 25/55頁 |
| 文件大小： | 636K |
| 代理商： | MCF52236CAF50 |
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Electrical Characteristics
MCF52235 ColdFire Microcontroller Data Sheet, Rev. 10
Freescale Semiconductor
31
The average chip-junction temperature (TJ) in C can be obtained from
Eqn. 1
where
TA = ambient temperature, C
JMA = package thermal resistance, junction-to-ambient, C/W
PD =PINT + PI/O
PINT = chip internal power, IDD VDD, watts
PI/O = power dissipation on input and output pins — user determined
For most applications, PI/O < PINT and can be ignored. An approximate relationship between PD and TJ (if PI/O is neglected) is:
Eqn. 2
Solving equations 1 and 2 for K gives:
Eqn. 3
where K is a constant pertaining to the particular part. K can be determined from Equation 3 by measuring PD (at equilibrium)
for a known TA. Using this value of K, the values of PD and TJ can be obtained by solving Equation 1 and Equation 2 iteratively
for any value of TA.
2.2
ESD Protection
Table 21. ESD Protection Characteristics1
1 A device is defined as a failure if the device no longer meets the device specification requirements after
exposure to ESD pulses. Complete DC parametric and functional testing is performed per applicable device
specification at room temperature followed by hot temperature, unless specified otherwise in the device
specification.
Characteristic
Symbol
Value
Units
ESD target for Human Body Model
HBM
1500 (ADC and EPHY pins)
2000 (All other pins)
V
ESD target for Charged Device Model
CDM
250
V
HBM circuit description
Rseries
1500
ohms
C100
pF
Number of pulses per pin (HBM)
positive pulses
negative pulses
—
1
—
Number of pulses per pin (CDM)
positive pulses
negative pulses
—
3
—
Interval of pulses (HBM)
—
1.0
sec
Interval of pulses (CDM)
—
0.2
sec
TJ
TA
PD JMA
+
=
PD
KTJ 273C
+
=
KPD
TA 273C
+
JMA
PD
2
+
=
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相關(guān)代理商/技術(shù)參數(shù) |
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| MCF52252AF80 | 功能描述:32位微控制器 - MCU KIRIN3 COLDFIRE V2 RoHS:否 制造商:Texas Instruments 核心:C28x 處理器系列:TMS320F28x 數(shù)據(jù)總線寬度:32 bit 最大時鐘頻率:90 MHz 程序存儲器大小:64 KB 數(shù)據(jù) RAM 大小:26 KB 片上 ADC:Yes 工作電源電壓:2.97 V to 3.63 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:LQFP-80 安裝風(fēng)格:SMD/SMT |
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| MCF52252CAF66 | 制造商:Freescale Semiconductor 功能描述:IC 32BIT MCU COLDFIRE/68K 66MHZ LQFP-100 |
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