MC9S12E128MFC View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
MFG CO.
'MC9S12E128MFC' PDF : 156 Pages View PDF
Freescale SemiconDdevuiccetUoserr,GIunidce.— 9S12E128DGV1/D V01.04
NOTE: Instead of specifying ambient temperature all parameters are specified for the more
meaningful silicon junction temperature. For power dissipation calculations refer
to Section A.1.8 Power Dissipation and Thermal Characteristics.
Table A-4 Operating Conditions
Rating
Symbol
Min
Typ
Max Unit
I/O, Regulator and Analog Supply Voltage
VDD5
3.135
3.3/5
5.5
V
Internal Logic Supply Voltage1
VDD
2.35
2.5
2.75
V
PLL Supply Voltage (1)
VDDPLL
2.35
2.5
2.75
V
Voltage Difference VDDX to VDDA
∆VDDX
-0.1
0
0.1
V
Voltage Difference VSSX to VSSR and VSSA
∆VSSX
-0.1
0
0.1
V
Oscillator
fosc
0.5
-
16
MHz
Bus Frequency2
fbus
0.25
-
25
MHz
Operating Junction Temperature Range
TJ
-40
-
140
°C
NOTES:
1. The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply. The
given operating range applies when this regulator is disabled and the device is powered from an external source.
2. Some blocks e.g. ATD (conversion) and NVMs (program/erase) require higher bus frequencies for proper opera-
tion.
A.1.8 Power Dissipation and Thermal Characteristics
Power dissipation and thermal characteristics are closely related. The user must assure that the maximum
operating junction temperature is not exceeded. The average chip-junction temperature (TJ) in °C can be
obtained from:
TJ = TA + (PD • ΘJA)
TJ = Junction Temperature, [°C ]
TA = Ambient Temperature, [°C ]
PD = Total Chip Power Dissipation, [W]
ΘJA = Package Thermal Resistance, [°C/W]
The total power dissipation can be calculated from:
PD = PINT + PIO
PINT = Chip Internal Power Dissipation, [W]
Two cases with internal voltage regulator enabled and disabled must be considered:
109
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