参数资料
型号: MC68HC05C8AMP
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 28/166页
文件大小: 1914K
代理商: MC68HC05C8AMP
Electrical Specifications
Thermal Characteristics
MC68HC05C8A MC68HCL05C8A MC68HSC05C8A — Rev. 5.0
Technical Data
MOTOROLA
Electrical Specifications
123
13.5 Thermal Characteristics
13.6 Power Considerations
The average chip-junction temperature, TJ, in °C, can be obtained from:
TJ = TA + (PD × θJA)(1)
where:
TA = Ambient temperature, °C
θ
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.
Following is an approximate relationship between PD and TJ (neglecting
PI/O):
PD = K ÷ (TJ + 273 °C)
(2)
Solving equations (1) and (2) for K gives:
K = PD × (TA + 273 °C) + θJA × (PD)
2
(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 equations (1) and (2) iteratively for any value of TA.
Characteristic
Symbol
Value
Unit
Thermal resistance
Plastic dual in-line package
Plastic leaded chip carrier (PLCC)
Quad flat pack (QFP0)
Plastic shrink DIP (SDIP)
θJA
60
70
95
60
°C/W
相关PDF资料
PDF描述
MC68HC11N4CFU3 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQFP80
MC68HC711N4VFE2 8-BIT, UVPROM, 2 MHz, MICROCONTROLLER, CQFP80
MC68HC05PV8AYDWR2 8-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDSO28
MC68HC11KS2CPU3 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQFP80
M37540M2-XXXFP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO36
相关代理商/技术参数
参数描述
MC68HC05C9 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:TECHNICAL DATA
MC68HC05C9A 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AFB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05C9AFN 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers