sc9s08mz16 Freescale Semiconductor, Inc, sc9s08mz16 Datasheet - Page 247

• Manufacturer Part Number: sc9s08mz16
• Description: Hcs08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

The average chip-junction temperature (T
where:
For most applications, P
(if P
Solving equations 1 and 2 for K gives:
where K is a constant pertaining to the particular part. K can be determined from
measuring P
obtained by solving
A.5
This section includes information about power supply requirements, I/O pin characteristics, and power
supply current in various operating modes.
Freescale Semiconductor
I/O
is neglected) is:
Num C
1
2
3
4
5
6
DC Characteristics
T
θ
P
P
P
D
JA
4
A
D
int
I/O
P Output high voltage — Low Drive (PTxDSn = 0)
P Output low voltage — Low Drive (PTxDSn = 0)
P Output high current — Max total I
P Output low current — Max total I
P Input high voltage; all digital inputs
P Input low voltage; all digital inputs
(at equilibrium) for a known T
= Ambient temperature, °C
2s2p — Four layer board, 2 signal and 2 power layers
= P
= Package thermal resistance, junction-to-ambient, °C/W
= I
Output high voltage — High Drive (PTxDSn = 1)
Output low voltage — High Drive (PTxDSn = 1)
= Power dissipation on input and output pins — user determined
int
DD
Equation A-1
+ P
× V
I/O
I/O
DD
<< P
, Watts — chip internal power
K = P
Parameter
int
and
and can be neglected. An approximate relationship between P
SC9S08MZ16 MCU Data Sheet, Rev. 1
D
P
Table A-4. DC Characteristics
Equation A-2
T
× (T
D
J
2.7 V ≤ V
5 V, I
5 V, I
= K ÷ (T
= T
J
5 V, I
5 V, I
A
) in °C can be obtained from:
OL
OH
+ 273°C) + θ
A
Load
Load
A
for all ports
Load
Load
for all ports
+ (P
. Using this value of K, the values of P
DD
J
= –10 mA
= –10 mA
= –2 mA
= –2 mA
D
+ 273°C)
≤ 5.5 V
× θ
iteratively for any value of T
5 V
5 V
Appendix A Electrical Characteristics and Timing Specifications
JA
JA
)
Symbol
× (P
I
V
I
V
OHT
V
V
OLT
OH
OL
IH
IL
D
)
2
V
V
0.65xV
DD
DD
Min
1.5
1.5
—
—
—
– 1.5
– 1.5
DD
Typ
—
—
—
—
—
—
—
—
1
Equation A-3
A
0.35 x V
.
D
Max
100
100
—
—
—
—
—
and T
DD
J
Unit
mA
mA
can be
V
V
V
by
D
Eqn. A-1
Eqn. A-2
Eqn. A-3
and T
247
J