DC Electrical Specifications

PD = K ⎟ (TJ + 273°C) (2)

Solving equations 1 and 2 for K gives:

K = PD ⋅ (TA + 273 × C) + QJMA ⋅ PD 2 (3)

where K is a constant pertaining to the particular part. K can be determined from equation

(3)by measuring PD (at equilibrium) for a known TA. Using this value of K, the values of PD and TJ can be obtained by solving equations (1) and (2) iteratively for any value of TA.

33.3 DC Electrical Specifications

Table 33-3. DC Electrical Specifications1

(VSS = VSSPLL= VSSF = VSSA= 0 VDC)

Characteristic

Symbol

Min

Max

Unit

 

 

 

 

 

Input High Voltage

VIH

0.7 x VDD

5.25

V

Input Low Voltage

VIL

VSS – 0.3

0.35 x VDD

V

Input Hysteresis

VHYS

0.06 x

mV

 

 

VDD

 

 

Input Leakage Current

Iin

-1.0

1.0

A

Vin = VDD or VSS, Input-only pins

 

 

 

 

High Impedance (Off-State) Leakage Current

IOZ

-1.0

1.0

A

Vin = VDD or VSS, All input/output and output pins

 

 

 

 

Output High Voltage (All input/output and all output pins)

VOH

VDD - 0.5

__

V

IOH = –2.0 mA

 

 

 

 

Output Low Voltage (All input/output and all output pins)

VOL

__

0.5

V

IOL = 2.0mA

 

 

 

 

Weak Internal Pull Up Device Current, tested at VIL Max.

IAPU

-10

-130

A

Input Capacitance 2

C

 

 

pF

All input-only pins

in

7

 

 

 

All input/output (three-state) pins

 

7

 

 

 

 

 

 

Load Capacitance3

 

 

 

pF

(50% Partial Drive)

CL

 

25

 

(100% Full Drive)

 

 

50

 

 

 

 

 

 

Supply Voltage (includes core modules and pads)

VDD

2.7

3.6

V

RAM Memory Standby Supply Voltage

VSTBY

 

 

V

Normal Operation: VDD > VSTBY - 0.3 V

 

0.0

3.6

 

Standby Mode: VDD < VSTBY - 0.3 V

 

1.8

3.6

 

Flash Memory Supply Voltage

VDDF

2.7

3.6

V

 

 

33-4

MCF5282 User’s Manual

MOTOROLA

Page 754
Image 754
Motorola MCF5282, MCF5281 user manual Solving equations 1 and 2 for K gives, DC Electrical Specifications1