Electrical Characteristics

MC9S08GW64 Series MCU Data Sheet, Rev. 3

Freescale Semiconductor

11

high-impedance circuit. Reliability of operation is enhanced if unused inputs are tied to an appropriate logic voltage level (for

3.4

Thermal Characteristics

This section provides information about operating temperature range, power dissipation, and package thermal resistance. Power

dissipation on I/O pins is usually small compared to the power dissipation in on-chip logic and voltage regulator circuits, and

Table 4. Absolute Maximum Ratings

Rating

Symbol

Value

Unit

Supply voltage

–0.3 to +3.8

V

120

mA

Digital input voltage

V

Instantaneous maximum current

Single pin limit (applies to all port pins except PTA5

1

Input must be current limited to the value specified. To determine the value of the required

voltages, then use the larger of the two resistance values.

current. This will be the greatest risk when the MCU is not consuming power. Examples are: if

no system clock is present, or if the clock rate is very low (which would reduce overall power

consumption).

 25

mA

Instantaneous maximum current

 50

mA

Storage temperature range

–55 to 150

C

Table 5. Thermal Characteristics

Rating

Symbol

Value

Unit

Operating temperature range

(packaged)

–40 to 85

C

Maximum junction temperature

95

C

Thermal resistance

Single-layer board

80-pin LQFP



JA

61

C/W

64-pin LQFP

70

Thermal resistance

Four-layer board

80-pin LQFP



JA

48

C/W

64-pin LQFP

52