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| 型号： | MCF51JM64VQH |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, FLASH, 50.33 MHz, RISC MICROCONTROLLER, PQFP64 |
| 封装： | 14 X 14 MM, QFP-64 |
| 文件页数： | 8/50页 |
| 文件大小： | 1244K |
| 代理商： | MCF51JM64VQH |
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MCF51JM128 ColdFire Microcontroller, Rev. 3
Preliminary Electrical Characteristics
Freescale Semiconductor
16
2.3
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 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 is small.
Table 6. Absolute Maximum Ratings
Rating
Symbol
Value
Unit
Supply voltage
VDD
–0.3 to 5.8
V
Input voltage
VIn
–0.3 to VDD + 0.3
V
Instantaneous maximum current
Single pin limit
(applies to all port pins)1, 2, 3
1 Input must be current limited to the value specified. To determine the value of the required
current-limiting resistor, calculate resistance values for positive (VDD) and negative (VSS) clamp
voltages, then use the larger of the two resistance values.
2 All functional non-supply pins are internally clamped to V
SS and VDD.
3 Power supply must maintain regulation within operating V
DD range during instantaneous and
operating maximum current conditions. If positive injection current (VIn > VDD) is greater than
IDD, the injection current may flow out of VDD and could result in external power supply going
out of regulation. Ensure external VDD load shunt current is greater than maximum injection
current. This is the greatest risk when the MCU is not consuming power. Examples: if no system
clock is present or if the clock rate is low, which would reduce overall power consumption.
ID
±25
mA
Maximum current into VDD
IDD
120
mA
Storage temperature
Tstg
–55 to 150
°C
Maximum junction temperature
TJ
150
°C
Table 7. Thermal Characteristics
Rating
Symbol
Value
Unit
Operating temperature range (packaged)
TA
–40 to 105
°C
Thermal resistance 1,2,3,4
80-pin LQFP
1s
2s2p
64-pin LQFP
1s
2s2p
64-pin QFP
1s
2s2p
44-pin LQFP
1s
2s2p
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
θ
JA
52
40
65
47
54
40
69
48
°C/W
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCF51JM64VQH | 制造商:Freescale Semiconductor 功能描述:IC 32BIT MCU 50.33MHZ QFP-64 |
| MCF51JU128 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advance Information Temperature range (ambient): -40°C to 105°C |
| MCF51JU128_12 | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MCF51JU128 |
| MCF51JU128VHS | 功能描述:32位微控制器 - MCU ColdFireV1,128KFlash RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT |
| MCF51JU128VHX | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Advance Information Temperature range (ambient): -40°C to 105°C |
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