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M68ICS08GR 데이터시트(PDF) 363 Page - Freescale Semiconductor, Inc |
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M68ICS08GR 데이터시트(HTML) 363 Page - Freescale Semiconductor, Inc |
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363 / 408 page ![]() Electrical Specifications Functional Operating Range MC68HC908GR8 — Rev 4.0 Technical Data MOTOROLA Electrical Specifications 363 23.3 Functional Operating Range NOTE: To ensure correct operation of the MCU under all operating conditions, the user must write data $1C to address $0033 immediately after reset. This is to ensure proper termination of an unused module within the MCU. 23.4 Thermal Characteristics Table 23-2. Functional Operation Range Characteristic Symbol Value Unit Operating temperature range TA –40 to +125 °C Operating voltage range VDD 3.0 ±10% 5.0 ±10% V Table 23-3. Thermal Characteristics Characteristic Symbol Value Unit Thermal resistance PDIP (28-pin) SOIC (28-pin) QFP (32-pin) θ JA 60 60 95 °C/W I/O pin power dissipation PI/O User-Determined W Power dissipation(1) 1. Power dissipation is a function of temperature. PD PD = (IDD × VDD) + PI/O = K/(TJ + 273 °C) W Constant(2) 2. K is a constant unique to the device. K can be determined for a known TA and measured PD. With this value of K, PD and TJ can be determined for any value of TA. K PD x (TA + 273 °C) + PD 2 × θ JA W/ °C Average junction temperature TJ TA + (PD × θJA) °C Maximum junction temperature TJM 140 °C Notes: Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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