参数资料
型号: MC68HC05J1AVDWR2
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, PDSO20
封装: SOIC-20
文件页数: 123/126页
文件大小: 1118K
代理商: MC68HC05J1AVDWR2
Technical Data
MC68HC05J1A — Rev. 1.0
96
Electrical Specifications
MOTOROLA
Electrical Specications
10.6 Power Considerations
The average chip junction temperature, TJ, in °C can be obtained from:
TJ = TA + (PD x θJA)
(1)
Where:
TA = ambient temperature in °C
θ
JA = package thermal resistance, junction to ambient in °C/W
PD = PINT + PI/O
PINT = ICC × VCC = chip internal power dissipation
PI/O = power dissipation on input and output pins (user-determined)
For most applications, PI/O < PINT and can be neglected.
Ignoring PI/O, the relationship between PD and TJ is approximately:
(2)
Solving equations (1) and (2) for K gives:
= PD x (TA + 273°C) + θJA x (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.
PD =
TJ + 273°C
K
相关PDF资料
PDF描述
MC68HCP11A1CFNE3 8-BIT, EEPROM, 3 MHz, MICROCONTROLLER, PQCC52
MC68HLC705KJ1C 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP16
MC68HRC08JK1CDW 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
MC68HC08JK1CP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDIP20
MC68HC08JK1CDW 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
相关代理商/技术参数
参数描述
MC68HC05J1AVP 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Microcontrollers
MC68HC05J3 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
MC68HC05J3CDW 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
MC68HC05J3CP 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit
MC68HC05J3DW 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit