參數(shù)資料
型號(hào): MC68HC08LT8CFGE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, 1.40 MM THICKNESS, 0.80 MM PITCH, ROHS COMPLIANT, MS-026BCB, LQFP-44
文件頁數(shù): 51/156頁
文件大?。?/td> 1107K
代理商: MC68HC08LT8CFGE
Electrical Specifications
MC68HC08LT8 Data Sheet, Rev. 1
144
Freescale Semiconductor
16.3 Functional Operating Range
16.4 Thermal Characteristics
Table 16-2. Operating Range
Characteristic
Symbol
Value
Unit
Operating temperature range
TA
(TL to TH)
– 40 to +85
°C
Operating voltage range
VDD
1.8 to 5.5(1)
1. For normal operation, user should ensure that the device supply voltage is above the LVI trip voltage.
V
LCD voltage
VLCD
VSS to VDD
V
Table 16-3. Thermal Characteristics
Characteristic
Symbol
Value
Unit
Thermal resistance
44-pin LQFP
θ
JA
85
°C/W
I/O pin power dissipation
PI/O
User determined
W
Power dissipation(1)
1. Power dissipation is a function of temperature.
PD
PD = (IDD × VDD) + PI/O =
K/(TJ + 273 °C)
W
Constant(2)
2. K constant unique to the device. K can be determined for a known TA and measured PD. With this value of K, PD and TJ
can be determined for any value of TA.
K
PD x (TA + 273 °C)
+ PD
2
× θ
JA
W/
°C
Average junction temperature
TJ
TA + (PD × θJA)
°C
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