80960Hx 208-Pin Pq4 Package Thermal Characteristics; Maximum T A At Various Airflows In °C (Pq4 Package Only) - Intel 80960HA Datasheet

32-bit high-performance superscalar processor
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Table 14. Maximum T
Core
1X Bus
Clock
Core
2X Bus
Clock
Core
3X Bus
Clock
† 0.285" high unidirectional heatsink (AI alloy 6061, 50 mil fin width, 150 mil center-to-center fin spacing).
Table 15. 80960Hx 208-Pin PQ4 Package Thermal Characteristics
Parameter
Junction-to-Case
(Case measured as
shown in
Case-to-Ambient
(No Heatsink)
Case-to-Ambient
(With Heatsink)
NOTES:
1. This table applies to 80960Hx PQ4 plugged into socket or soldered directly to board.
2.
=
JA
3. 0.285" high unidirectional heatsink (AI alloy 6061, 50 mil fin width, 150 mil center-to-center fin spacing).
Datasheet
at Various Airflows in °C (PQ4 Package Only)
A
f
CLKIN
(MHz)
25
T
with
A
33
Heatsink
40
T
25
A
without
33
Heatsink
40
16
T
with
25
A
Heatsink
33
40
16
T
A
25
without
33
Heatsink
40
T
with
20
A
Heatsink
25
T
A
20
without
25
Heatsink
Thermal Resistance — °C/Watt
Airflow — ft./min (m/sec)
0
200
(0)
(1.01)
1
1
Figure
5.)
12
10
11
7
3
+
JC
CA
Airflow-ft/min (m/sec)
0
200
400
(0)
(1.01)
(2.03)
71
76
79
67
74
77
63
71
75
70
73
75
65
68
72
61
65
69
71
76
79
62
71
75
55
66
71
48
62
68
69
72
75
60
64
68
52
57
63
42
51
58
58
68
73
51
64
70
56
61
66
48
55
61
400
600
800
(2.03)
(3.07)
(4.06)
1
1
1
8
8
7
5
5
4
80960HA/HD/HT
600
800
(3.04)
(4.06)
79
80
77
79
75
77
75
76
72
74
69
71
79
80
75
77
71
74
68
72
75
76
68
71
63
66
58
62
73
76
70
73
66
68
61
64
1000
(5.07)
JA
1
JC
7
4
1000
(5.07)
80
79
77
76
74
71
80
77
74
72
76
71
66
62
76
73
68
64
33

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