参数资料
型号: MPC8250AZQNJDX
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 291 MHz, RISC PROCESSOR, PBGA516
封装: 27 X 27 MM, 2.25 MM HEIGHT, 1 MM PITCH, PLASTIC, BGA-516
文件页数: 2/62页
文件大小: 945K
代理商: MPC8250AZQNJDX
MPC8250 Hardware Specifications, Rev. 2
10
Freescale Semiconductor
Electrical and Thermal Characteristics
2.2
Thermal Characteristics
Table 4 describes thermal characteristics.
2.3
Power Considerations
The average chip-junction temperature, TJ, in °C can be obtained from the following:
TJ = TA + (PD x θJA)
(1)
where
TA = ambient temperature °C
θ
JA = package thermal resistance, junction to ambient, °C/W
PD = PINT + PI/O
PINT = IDD x VDD Watts (chip internal power)
PI/O = power dissipation on input and output pins (determined by user)
For most applications PI/O < 0.3 x PINT. If PI/O is neglected, an approximate relationship between PD and
TJ is the following:
PD = K/(TJ + 273° C)
(2)
Solving equations (1) and (2) for K gives:
K = PD x (TA + 273° C) + θJA x PD
2
(3)
1
The default configuration of the CPM pins (PA[0–31], PB[4–31], PC[0–31], PD[4–31]) is input. To prevent excessive
DC current, it is recommended to either pull unused pins to GND or VDDH, or to configure them as outputs.
2
The leakage current is measured for nominal VDD, VCCSYN, and VDD.
Table 4. Thermal Characteristics
Characteristic
Symbol
Value
Unit
Air Flow
480 TBGA
516 PBGA
Junction to ambient—
single-layer board 1
1
Assumes no thermal vias
θJA
13
24
°C/W
Natural convection
10
18
1 m/s
Junction to ambient—
four-layer board
11
16
Natural convection
813
1 m/s
Junction to board 2
2
Thermal resistance between the die and the printed circuit board per JEDEC JESD51-8. Board temperature is
measured on the top surface of the board near the package.
θJB
48
°C/W
Junction to case 3
3
Thermal resistance between the die and the case top surface as measured by the cold plate method (MIL SPEC-883
Method 1012.1).
θJC
1.1
6
°C/W
相关PDF资料
PDF描述
MC68HC05B32BE 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP56
MC68HRC705J1ACPE 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP20
MC908AB32CFUE 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PQFP64
MC908GR60AVFJR2 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
MC908GZ48MFAE 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP48
相关代理商/技术参数
参数描述
MPC8250AZUMHBC 功能描述:微处理器 - MPU POWER QUICC II HIP4C RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
MPC8250AZUPIBC 功能描述:微处理器 - MPU POWER QUICC II HIP4C RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
MPC8250VR 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Hardware Specifications
MPC8255 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MPC826xA (HiP4) Family Hardware Specifications
MPC8255ACVVMHBB 功能描述:微处理器 - MPU PQ II HIP4 REV B RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324