参数资料
型号: MPC5607BMLQ4
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: FLASH, 48 MHz, MICROCONTROLLER, PQFP144
封装: 20 X 20 MM, 0.50 MM PITCH, 1.40 HEIGHT, LQFP-144
文件页数: 39/106页
文件大小: 667K
代理商: MPC5607BMLQ4
MPC5607B Microcontroller Data Sheet, Rev. 5
Electrical characteristics
Freescale Semiconductor
38
PD = K / (TJ + 273 °C)
Eqn. 2
Therefore, solving equations 1 and 2:
K = PD x (TA + 273 °C) + RJA x PD
2
Eqn. 3
Where:
K is a constant for the particular part, which may 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 may be obtained by solving equations 1 and 2
iteratively for any value of TA.
4.6
I/O pad electrical characteristics
4.6.1
I/O pad types
The device provides four main I/O pad types depending on the associated alternate functions:
Slow pads - are the most common pads, providing a good compromise between transition time and low
electromagnetic emission.
Medium pads - provide transition fast enough for the serial communication channels with controlled current to reduce
electromagnetic emission.
Fast pads - provide maximum speed. These are used for improved Nexus debugging capability.
Input only pads - are associated with ADC channels and 32 kHz low power external crystal oscillator providing low
input leakage.
Medium and Fast pads can use slow configuration to reduce electromagnetic emission, at the cost of reducing AC performance.
4.6.2
I/O input DC characteristics
Table 11 provides input DC electrical characteristics as described in Figure 6.
Figure 6. I/O input DC electrical characteristics definition
VIL
VIN
VIH
PDIx = ‘1
VDD
VHYS
(GPDI register of SIUL)
PDIx = ‘0’
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