參數(shù)資料
型號: MC9S08MP16VLC
廠商: Freescale Semiconductor
文件頁數(shù): 2/36頁
文件大小: 0K
描述: MCU 8BIT .25U SGF FLASH 32-LQFP
標(biāo)準(zhǔn)包裝: 250
系列: S08
核心處理器: S08
芯體尺寸: 8-位
速度: 51.34MHz
連通性: I²C,LIN,SCI,SPI
外圍設(shè)備: LVD,POR,PWM,WDT
輸入/輸出數(shù): 25
程序存儲器容量: 16KB(16K x 8)
程序存儲器類型: 閃存
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 13x12b,D/A 3x5b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 105°C
封裝/外殼: 32-LQFP
包裝: 托盤
MC9S08MP16 Series Data Sheet, Rev. 2
Electrical Characteristics
Freescale Semiconductor
10
2.4
Thermal Characteristics
This section provides information about operating temperature range, power dissipation, and package thermal resistance. Power
dissipation on I/O pins is usually small compared to the power dissipation in on-chip logic and voltage regulator circuits, and
it is user-determined rather than being controlled by the MCU design. To take PI/O into account in power calculations, determine
the difference between actual pin voltage and VSS or VDD and multiply by the pin current for each I/O pin. Except in cases of
unusually high pin current (heavy loads), the difference between pin voltage and VSS or VDD will be very small.
The average chip-junction temperature (TJ) in C can be obtained from:
TJ = TA + (PD JA)
Eqn. 1
where:
TA = Ambient temperature, C
JA = Package thermal resistance, junction-to-ambient, C/W
PD = Pint PI/O
Pint = IDD VDD, Watts — chip internal power
PI/O = Power dissipation on input and output pins — user determined
For most applications, PI/O Pint and can be neglected. An approximate relationship between PD and TJ (if PI/O is neglected)
is:
PD = K (TJ + 273C)
Eqn. 2
Solving Equation 1 and Equation 2 for K gives:
K = PD (TA + 273C) + JA (PD)
2
Eqn. 3
Table 4. Thermal Characteristics
Num
C
Rating
Symbol
Consumer &
Industrial
Automotive
Unit
1
Operating temperature range (packaged)
TA
–40 to 105
–40 to 125
C
2
D
Maximum junction temperature
TJ
115
135
C
3
D
Thermal resistance 1,2
single-layer board
1 Junction temperature is a function of die size, on-chip power dissipation, package thermal resistance, mounting site (board)
temperature, ambient temperature, air flow, power dissipation of other components on the board, and board thermal
resistance.
2 Junction-to-ambient natural convection
48-pin LQFP
JA
80
C/W
32-pin LQFP
85
28-pin SOIC
71
4
D
Thermal resistance 1,2
four-layer board
48-pin LQFP
JA
56
C/W
32-pin LQFP
57
28-pin SOIC
48
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