MAC7100CVF Motorola, MAC7100CVF Datasheet - Page 6

• Manufacturer Part Number: MAC7100CVF
• Description: MAC7100 Microcontroller Family Hardware Specifications
• Manufacturer: Motorola

Electrical Characteristics
3.4.1
The I/O pins operate at a nominal level of 5 V. This class of pins is comprised of the clocks, control and general
purpose/peripheral pins. The internal structure of these pins is identical; however, some functionality may be
disabled (for example, for analog inputs the output drivers, pull-up/down resistors are permanently disabled).
3.4.2
The pins XFC, EXTAL, XTAL are dedicated to the oscillator and operate at a nominal level of 2.5 V.
3.5
Power dissipation and thermal characteristics are closely related. The user must assure that the maximum
operating junction temperature is not exceeded.
Note that the JEDEC specification reserves the symbol R
ambient thermal resistance on a 1s test board in natural convection environment. R
(Theta-JMA) will be used for both junction-to-ambient on a 2s2p test board in natural convection and for
junction-to-ambient with forced convection on both 1s and 2s2p test boards. It is anticipated that the generic
name, θ
The average chip-junction temperature (T
The total power dissipation is calculated from:
Two cases for P
6
1. Internal Voltage Regulator disabled:
2. Internal voltage regulator enabled:
JA
P
or
I
additionally contains the current flowing into the external loads with output high.
DD
IO
, will continue to be commonly used.
Power Dissipation and Thermal Characteristics
R is the current shown in Table 12 and not the overall current flowing into V
5 V I/O Pins
Oscillator Pins
is the sum of all output currents on I/O ports associated with V
IO
T
P
P
R
R
P
J
D
, with the internal voltage regulator enabled and disabled, must be considered:
IO
INT
DSON
DSON
=
=
=
=
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
T
MAC7100 Microcontroller Family Hardware Specifications
P
∑
A
INT
i
=
=
(
I
+
T
T
P
Θ
P
P
R
DD
V
--------- - (for outputs driven low)
V
------------------------------- (for outputs driven high)
J
A
D
INT
INT
JA
I
(
+
DSON
OL
Θ
OL
DD
R V
Freescale Semiconductor, Inc.
=
=
=
P
JA
=
×
=
=
5 V
IO
I
Junction Temperature ( ° C)
Ambient Temperature ( ° C)
Total Chip Power Dissipation (W)
For More Information On This Product,
OL
)
Package Thermal Resistance ( ° C/W)
–
Chip Internal Power Dissipation (W)
(
⋅
I
DD
(
DD
I
IO
OH
R
×
i
)
)
2
V
+
DD
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(
I
DD
J
)
) in °C is obtained from:
+
A V
(
I
×
DD
PLL V
DD
A
)
×
DD
PLL
θJA
)
+
or θ
(
I
DD
JA
A V
×
(Theta-JA) strictly for junction-to-
DD
DD
A
)
X and V
DD
DD
R.
θJMA
R, which
MOTOROLA
or θ
JMA