S9S12XS256J0CAL Datasheet, PDF (662/738 Pages) Freescale Semiconductor, Inc – Microcontrollers

Electrical Characteristics
Table A-4. Operating Conditions
Voltage difference V_DDR to V_DDX
∆_VDDR
-0.1
0
0.1
V
Voltage difference V_SSX to V_SSA
∆_VSSX
refer to Table A-14
Voltage difference V_SS1 , V_SS2 , V_SS3 , V_SSPLL to V_SSX
Digital logic supply voltage¹
∆_VSS
-0.1
0
0.1
V
V_DD
1.72
1.8
1.98
V
PLL supply voltage
Oscillator² (Loop Controlled Pierce)
(Full Swing Pierce)
V_DDPLL
1.72
1.8
1.98
V
f_osc
4
2
—
16
MHz
—
40
Bus frequency³
f_bus
0.5
—
40
MHz
Temperature Option C
Operating junction temperature range
Operating ambient temperature range⁴
°C
TJ
–40
—
110
TA
–40
27
85
Temperature Option V
Operating junction temperature range
Operating ambient temperature range⁴
°C
TJ
–40
—
130
TA
–40
27
105
Temperature Option M
°C
Operating junction temperature range
Operating ambient temperature range⁴
TJ
–40
—
150
TA
–40
27
125
1 ^{The device contains an internal voltage regulator to generate the logic and PLL supply out of the I/O supply.}
2 ^{This refers to the oscillator base frequency. Typical crystal & resonator tolerances are supported.}
3 ^{Please refer to Table A-24 for maximum bus frequency limits with frequency modulation enabled}
4 ^{Please refer to Section A.1.8, “Power Dissipation and Thermal Characteristics” for more details about the relation between}
ambient temperature T_A and device junction temperature T_J.
NOTE
Using the internal voltage regulator, operation is guaranteed in a power
down until a low voltage reset assertion.
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 (T_J) in °C can be
obtained from:
TJ = TA + (PD • Θ_JA)
TJ = Junction Temperature, [°C ]
TA = Ambient Temperature, [°C ]
PD = Total Chip Power Dissipation, [W]
Θ_JA = Package Thermal Resistance, [°C/W]
S12XS Family Reference Manual, Rev. 1.13
662
Freescale Semiconductor