MCF51JU128VHS FREESCALE [Freescale Semiconductor, Inc], MCF51JU128VHS Datasheet - Page 19

• Manufacturer Part Number: MCF51JU128VHS
• Description: MCF51JU128
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

5.4
5.4.1 Thermal operating requirements
5.4.2 Thermal attributes
Freescale Semiconductor, Inc.
Single-layer
(1s)
Four-layer
(2s2p)
Single-layer
(1s)
Four-layer
(2s2p)
Board type
Symbol
T
T
J
A
Thermal specifications
R
R
R
R
Symbol
θJA
θJA
θJMA
θJMA
Die junction temperature
Ambient temperature
Description
Bus clock
Data outputs
Data inputs
MCF51JU128 Advance Information Data Sheet, Rev. 1, 08/2011.
Thermal resistance,
junction to ambient
(natural convection)
Thermal resistance,
junction to ambient
(natural convection)
Thermal resistance,
junction to ambient
(200 ft./min. air speed)
Thermal resistance,
junction to ambient
(200 ft./min. air speed)
Table 12. Thermal operating requirements
Description
Figure 4. RGPIO timing diagram
Table continues on the next page...
73
54
61
48
64 LQFP
R3
Preliminary
R4
R1
108
69
91
63
Laminate
QFN
64
79
55
66
48
48 LQFP
R2
Min.
–40
–40
108
69
91
63
Laminate
QFN
44
98
33
81
28
Max.
32 QFN
125
105
Thermal specifications
°C/W
°C/W
°C/W
°C/W
Unit
Unit
°C
°C
1
1
1
1
Notes
19