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DSP56362P 数据表(PDF) 28 Page - Freescale Semiconductor, Inc |
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DSP56362P 数据表(HTML) 28 Page - Freescale Semiconductor, Inc |
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28 / 152 page  Thermal Characteristics DSP56362 Technical Data, Rev. 4 3-2 Freescale Semiconductor 3.3 Thermal Characteristics 3.4 DC Electrical Characteristics Operating temperature range TJ −40 to +105 °C Storage temperature TSTG −55 to +125 °C 1 GND = 0 V, V CC = 3.3 V ± .16 V, TJ = 0°C to +100°C, CL = 50 pF 2 Absolute maximum ratings are stress ratings only, and functional operation at the maximum is not guaranteed. Stress beyond the maximum rating may affect device reliability or cause permanent damage to the device. 3 CAUTION: All “5 V Tolerant” input voltages must not be more than 3.95 V greater than the supply voltage; this restriction applies to “power on”, as well as during normal operation. In any case, the input voltages cannot be more than 5.75 V. “5 V Tolerant” inputs are inputs that tolerate 5 V. Table 3-2 Thermal Characteristics Characteristic SymbolLQFP Value Unit Junction-to-ambient thermal resistance1 1 Junction-to-ambient thermal resistance is based on measurements on a horizontal single-sided printed circuit board per SEMI G38-87 in natural convection.(SEMI is Semiconductor Equipment and Materials International, 805 East Middlefield Rd., Mountain View, CA 94043, (415) 964-5111. Measurements were done with parts mounted on thermal test boards conforming to specification EIA/JESD51-3. RθJA or θJA 45.3 °C/W Junction-to-case thermal resistance2 2 Junction-to-case thermal resistance is based on measurements using a cold plate per SEMI G30-88, with the exception that the cold plate temperature is used for the case temperature. RθJC or θJC 10.1 °C/W Thermal characterization parameter Ψ JT 5.5 °C/W Table 3-3 DC Electrical Characteristics1 Characteristics Symbol Min Typ Max Unit Supply voltage VCC 3.14 3.3 3.46 V Input high voltage • D(0:23), BG, BB, TA, DE, and PINIT/NMI •MOD2/IRQ2, RESET, and TCK/TDI/TMS/ TRST/ESAI/Timer/HDI08/ SHI(SPI mode) pins •SHI(I2C mode) pins • EXTAL3 VIH VIHP VIHX 2.0 2.0 1.5 0.8 × V CC — — — VCC VCC + 3.95 VCC + 3.95 VCC V Input low voltage • D(0:23), BG, BB, TA, MOD2/IRQ2, RESET, PINIT/NMI • All JTAG/ESAI/Timer/HDI08/ SHI(SPI mode) pins •SHI(I2C mode) pins • EXTAL3 VIL VILP VILX –0.3 –0.3 –0.3 –0.3 — — — 0.8 0.8 0.3 × V CC 0.2 × V CC V Table 3-1 Maximum Ratings (continued) Rating1 Symbol Value1 , 2 Unit |
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