mc68hc908ap8a Freescale Semiconductor, Inc, mc68hc908ap8a Datasheet - Page 296

• Manufacturer Part Number: mc68hc908ap8a
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Electrical Specifications
22.3 Functional Operating Range
22.4 Thermal Characteristics
296
Operating temperature range
Operating voltage range
Thermal resistance
I/O pin power dissipation
Power dissipation
Constant
Average junction temperature
Maximum junction temperature
1. Functionality of the device has been characterized down to the LVI trip voltage, but user
1. Power dissipation is a function of temperature.
2. K constant unique to the device. K can be determined for a known T
42-Pin SDIP
44-Pin QFP
48-Pin LQFP
should ensure that the device supply voltage is within the specified range of 4.5 to 5.5V
after power-up in order for the LVI circuit to configure properly.
With this value of K, P
(2)
Characteristic
Characteristic
(1)
Table 22-3. Thermal Characteristics
MC68HC908AP A-Family Data Sheet, Rev. 3
D
and T
Table 22-2. Operating Range
J
can be determined for any value of T
Symbol
Symbol
V
P
T
θ
P
T
T
K
DD
JA
I/O
JM
A
D
J
P
D
= (I
P
User determined
K/(T
D
T
A
4.5 to 5.5
x (T
– 40 to +85
DD
+ P
+ (P
J
Value
Value
× V
A
D
+ 273 °C)
100
60
95
80
2
+ 273 °C)
D
DD
× θ
× θ
) + P
JA
(1)
JA
A
A
.
and measured P
)
I/O
=
Freescale Semiconductor
°C/W
°C/W
°C/W
W/°C
Unit
Unit
°C
°C
°C
W
W
V
D.