MCF5208CAB166(2006) 데이터 시트보기 (PDF) - Freescale Semiconductor

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MCF5208CAB166
(Rev.:2006)

ColdFire® Microprocessor

Freescale Semiconductor 

Preliminary Electrical Characteristics

Table 4. Absolute Maximum Ratings1, 2 (continued)

Digital Input Voltage 3

Instantaneous Maximum Current

Single pin limit (applies to all pins) 3, 4, 5

VIN

– 0.3 to +3.6

V

ID

25

mA

Operating Temperature Range (Packaged)

TA

– 40 to 85

°C

(TL - TH)

Storage Temperature Range

Tstg

– 55 to 150

°C

NOTES:

1 Functional operating conditions are given in Section 5.4, “DC Electrical Specifications.”

Absolute maximum ratings are stress ratings only, and functional operation at the maxima is

not guaranteed. Continued operation at these levels may affect device reliability or cause

permanent damage to the device.

2 This device contains circuitry protecting against damage due to high static voltage or

electrical fields; however, it is advised that normal precautions be taken to avoid application of

any voltages higher than maximum-rated voltages to this high-impedance circuit. Reliability of

operation is enhanced if unused inputs are tied to an appropriate logic voltage level (e.g.,

either VSS or EVDD).

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

current-limiting resistor, calculate resistance values for positive and negative clamp voltages,

then use the larger of the two values.

4 All functional non-supply pins are internally clamped to VSS and EVDD.

5 Power supply must maintain regulation within operating EVDD range during instantaneous

and operating maximum current conditions. If positive injection current (Vin > EVDD is greater

than IDD, the injection current may flow out of EVDD and could result in external power supply

going out of regulation. Insure external EVDD load will shunt current greater than maximum

injection current. This will be the greatest risk when the MCU is not consuming power (ex; no

clock). Power supply must maintain regulation within operating EVDD range during

instantaneous and operating maximum current conditions.

5.2 Thermal Characteristics

Table 5 lists thermal resistance values

Table 5. Thermal Characteristics

Characteristic

Junction to ambient, natural convection Four layer board

(2s2p)

Junction to ambient (@200 ft/min)

Four layer board

(2s2p)

Junction to board

Junction to case

Junction to top of package

Maximum operating junction temperature

Symbol

θJMA

θJMA

θJB

θJC

Ψjt

Tj

196MBGA

321,2

160QFP Unit

401,2 °C/W

291,2

361,2 °C/W

203

253

°C / W

104

104

°C / W

21,5

21,5

°C / W

105

105

oC

MCF5208 ColdFire® Microprocessor Data Sheet, Rev. 0.5

Freescale Semiconductor

Preliminary

19

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