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| 486sqfp_temp4 Comparision Pastic Packages Only Thermal Performance Comparison for AM486DX2 and DX4 in the Low Cost (PDH-208) Package vs. the Standard SQFP (PDE-208), and Intel's DX2 and DX4 in the 208-SQFP package. 1/19/97 AMD 486 DE2 and DX2 SQFP Packages vs. Intel DX2 SQFP 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 80.9 65.9 57.8 48.0 59.1 50.7 DE2 (Standard SQFP) DE2 (Low Cost SQFP) DX2 (Industrial SQFP) DX2 (Standard SQFP) DX2 (Low Cost SQFP) Intel 80486 DX2 SQFP 80.0 70.0 60.0 degrees C 50.0 40.0 30.0 20.0 10.0 0.0 Max. Ambient Temp. at 3.3V AMD 486 DX5 and DX4 SQFP Packages vs. Intel DX4 SQFP 71.1 56.1 46.6 45.7 36.5 DX5 (Standard SQFP) DX4 (Industrial SQFP) DX4 (Standard SQFP) DX4 (Low Cost SQFP) Intel DX4 SQFP degrees C Max. Ambient Temp. at 3.3V Equations: Tj = Tcase + P * ThetaJC TA = Tj - P * ThetaJA Tcase = TA + P * (ThetaJA - ThetaJC) TA = Tcase - P * (ThetaJA - ThetaJC) PDE-208 (Standard SQFP w/ ext. heat slug) Theta JC Junction Theta JA Ambient (deg. C/Watt) Temp.(C) (deg. C/Watt) Temp.(C) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 87.6 88.3 88.6 102.0 102.3 102.5 87.0 87.3 87.5 103.1 103.5 103.8 88.1 88.5 88.8 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 14.0 63.2 57.8 55.3 83.1 80.9 79.2 68.1 65.9 64.2 74.4 71.1 68.5 59.4 56.1 53.5 AMD Am486 DE2 Commercial Typ. Max. Max. Typ. Max. Max. Typ. Max. Max. Typ. Max. Max. Typ. Max. Max. Typ. Max. Max. Typ. Max. Max. Enhanced AM486DX Data Sheet Specifications PDH-208 (Low-Cost SQFP w/ int. heat spreader) Voltage Icc Spec. Frequency Total Icc Power Case Temp. Theta JC Junction Theta JA Ambient (3.0-3.6V) (mA/MHz) (MHz) (mA) (Watts) (degrees C) (deg. C/Watt) Temp.(C) (deg. C/Watt) Temp.(C) 3.3 3.3 3.6 3.3 3.3 3.6 3.3 3.3 3.6 3.3 3.3 3.6 3.3 3.3 3.6 3.3 3.3 3.6 3.3 3.3 3.6 8.0 10.0 10.0 6.2 7.0 7.0 6.2 7.0 7.0 6.2 7.0 7.0 6.2 7.0 7.0 6.2 7.0 7.0 6.2 7.0 7.0 66 66 66 66 66 66 66 66 66 100 100 100 100 100 100 133 133 133 133 133 133 528.0 660.0 660.0 409.2 462.0 462.0 409.2 462.0 462.0 620.0 700.0 700.0 620.0 700.0 700.0 824.6 931.0 931.0 824.6 931.0 931.0 1.74 2.18 2.38 1.35 1.52 1.66 1.35 1.52 1.66 2.05 2.31 2.52 2.05 2.31 2.52 2.72 3.07 3.35 2.72 3.07 3.35 85 85 85 100 100 100 85 85 85 100 100 100 85 85 85 100 100 100 85 85 85 5.5 5.5 5.5 94.6 97.0 98.1 22.5 22.5 22.5 55.4 48.0 44.6 DX2 Industrial Industrial Temp. is Not Supported in the PDH-208 package DX2 Commercial 5.5 5.5 5.5 92.4 93.4 94.1 22.5 22.5 22.5 62.0 59.1 56.7 DX4 Industrial Industrial Temp. is Not Supported in the PDH-208 package DX4 Commercial 5.5 5.5 5.5 96.3 97.7 98.9 22.5 22.5 22.5 50.2 45.7 42.2 DX5 Industrial Industrial Temp. is Not Supported in the PDH-208 package DX5 is Not Supported in Industrial Temp,, PDE-208 package 1.5 1.5 1.5 89.1 89.6 90.0 14.0 14.0 14.0 51.0 46.6 43.1 DX5 Commercial PDH-208 Pkg. is not offered in frequencies above 100MHz Page 1 486sqfp_temp4 Comparision Pastic Packages Only AMD's PDE-208 Standard SQFP Package Thermal Resistance Cooling Theta JA vs. Airflow in Linear ft/min. (m/sec) Mechanism Psi JT 0 (0) 200 (1.01) 400 (2.03) 600 (3.04) 800 (4.06) No Heat Sink 1.5 14.0 8.7 7.4 6.4 5.8 Note 2. AMD's PDH-208 Low-Cost SQFP Package Thermal Resistance Cooling Theta JA vs. Airflow in Linear ft/min. (m/sec) Mechanism Psi JT 0 (0) 200 (1.01) 400 (2.03) 600 (3.04) 800 (4.06) No Heat Sink 5.5 22.5 15.4 13.4 11.9 10.9 Note 2. AMD's 168 Pin PGA Package Thermal Resistance Cooling Theta JA vs. Airflow in Linear ft/min. (m/sec) Mechanism Theta JC 0 (0) 200 (1.01) 400 (2.03) 600 (3.04) 800 (4.06) No Heat Sink 1.5 16.5 14.0 12.0 10.5 9.5 Note 2. Intel 80486 DX2 DX4 Typ. Max. Max. Typ. Max. Max. 1.) 2.) 3.) 4.) 486 Data Sheets (commercial only) Voltage Icc Spec. Frequency Total Icc Power (3.0-3.6V) (mA/MHz) (MHz) (mA) (Watts) 3.3 Thermal 50 395.0 1.30 3.3 Thermal 50 507.0 1.67 3.6 Thermal 50 507.0 1.83 3.3 Thermal 100 1075.0 3.55 3.3 Thermal 100 1300.0 4.29 3.6 Thermal 100 1300.0 4.68 208-Lead SQFP (3.3V) Case Temp. Theta JC Junction (degrees C) (deg. C/Watt) Temp.(C) 85 3.5 89.6 85 3.5 90.9 85 3.5 91.4 85 1.2 89.3 85 1.2 90.1 85 1.2 90.6 Theta JA (deg. C/Watt) 24.0 24.0 24.0 12.5 12.5 12.5 Ambient Temp.(C) 58.3 50.7 47.6 44.9 36.5 32.1 Note 3. Note 4. Note: All data shown are based on No Airflow and No Heat Sink Theta JA thermal resistance with Airflow is based on an average of measured values. Table 28 on page 45 in the Intel DX2 data sheet (Oct. 1995) lists Max. Ambient of 51 degrees for the 208-Lead SQFP (3.3V) without a Heat Sink and with Zero Airflow. Table 26 on page 44 in the Intel DX4 data sheet (Oct. 1995) lists Max. Ambient of 36.5 degrees for the 208-Lead SQFP (3.3V) without a Heat Sink and with Zero Airflow. Page 2 |
Price & Availability of AM486DX
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