mc9rs08la8 Freescale Semiconductor, Inc, mc9rs08la8 Datasheet - Page 9

• Manufacturer Part Number: mc9rs08la8
• Description: 8-bit Rs08 Central Processor Unit
• Manufacturer: Freescale Semiconductor, Inc

(if PI/O is neglected) is:
Solving
where K is a constant pertaining to the particular part. K can be determined from
measuring P
obtained by solving equations 1 and 2 iteratively for any value of T
3.4
Although damage from electrostatic discharge (ESD) is much less common on these devices than on early
CMOS circuits, normal handling precautions must be used to avoid exposure to static discharge.
Qualification tests are performed to ensure that these devices can withstand exposure to reasonable levels
of static without suffering any permanent damage.
All ESD testing is in conformity with AEC-Q100 Stress Test Qualification for Automotive Grade
Integrated Circuits. During the device qualification ESD stresses were performed for the human body
model (HBM), the machine model (MM) and the charge device model (CDM).
A device is defined as a failure if after exposure to ESD pulses the device no longer meets the device
specification. Complete DC parametric and functional testing is performed per the applicable device
specification at room temperature followed by hot temperature, unless specified otherwise in the device
specification.
Freescale Semiconductor
Equation 1
ESD Protection and Latch-Up Immunity
D
Latch-up
Machine
Model
Human
(at equilibrium) for a known T
Body
and
Series resistance
Storage capacitance
Number of pulses per pin
Series resistance
Storage capacitance
Number of pulses per pin
Minimum input voltage limit
Maximum input voltage limit
Equation 2
Table 5. ESD and Latch-up Test Conditions
Description
MC9RS08LA8 Series MCU Data Sheet, Rev. 1
K = P
for K gives:
D
P
× (T
D
= K ÷ (T
A
A
+ 273°C) + θ
. Using this value of K, the values of P
J
+ 273°C)
Symbol
JA
R1
R1
—
—
—
—
C
C
× (PD)
2
A
.
Value
1500
–2.5
100
200
7.5
3
0
3
Equation A-3
Electrical Characteristics
D
and T
Unit
pF
pF
—
—
Ω
Ω
V
V
J
can be
by
Eqn. 2
Eqn. 3
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