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| MC68HC11E0CFNE2 Datasheet, PDF (150/242 Pages) Freescale Semiconductor, Inc – M68HC11 CPU, Power-saving stop and wait modes, Low-voltage devices available (3.0–5.5 Vdc) | |||
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Electrical Characteristics
10.3 Functional Operating Range
Operating temperature range
MC68HC(7)11Ex
MC68HC(7)11ExC
MC68HC(7)11ExV
MC68HC(7)11ExM
MC68HC811E2
MC68HC811E2C
MC68HC811E2V
MC68HC811E2M
MC68L11Ex
Operating voltage range
Rating
Symbol
Value
Unit
TL to TH
0 to +70
â40 to +85
â40 to +105
TA
â40 to +125
°C
0 to +70
â40 to +85
â40 to +105
â40 to +125
â20 to +70
VDD
5.0 ± 10%
V
10.4 Thermal Characteristics
Characteristic
Symbol
Value
Unit
Average junction temperature
TJ
TA + (PD Ã ÎJA)
°C
Ambient temperature
TA
User-determined
°C
Package thermal resistance (junction-to-ambient)
48-pin plastic DIP (MC68HC811E2 only)
56-pin plastic SDIP
52-pin plastic leaded chip carrier
52-pin plastic thin quad flat pack (TQFP)
64-pin quad flat pack
50
ÎJA
50
50
°C/W
85
85
Total power dissipation(1)
PD
PINT + PI/O
K / TJ + 273°C
W
Device internal power dissipation
PINT
IDD Ã VDD
W
I/O pin power dissipation(2)
PI/O
User-determined
W
A constant(3)
K
PD à (TA + 273°C)
+ ÎJA Ã PD2
W/°C
1. This is an approximate value, neglecting PI/O.
2. For most applications, PI/O ⤠PINT and can be neglected.
3. K is a constant pertaining to the device. Solve for K with a known TA and a measured PD (at equilibrium). Use this value
of K to solve for PD and TJ iteratively for any value of TA.
M68HC11E Family Data Sheet, Rev. 5.1
150
Freescale Semiconductor
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