86 SBC330 3U VPX Single Board Computer
Publication No. SBC330-0HH/3
If,
during
normal
powered
operation,
the
5V
rail
makes
an
excursion
beyond
those
given
below,
the
SBC330
enters
power
‐
up/reset
and
hangs
until
the
5V
rail
is
back
within
its
90%
limit
for
a
period
estimated
to
be
200
nS.
In
this
event,
the
SBC330
undergoes
a
full
HRESET.
To
run
the
Real
‐
Time
‐
Clock
(RTC)
and
the
BMM,
P3V3_AUX
must
be
present,
unless
P3V3_BAT
is
present,
which
will
only
maintain
the
RTC.
The
RTC
backup
takes
only
1
μ
A.
SBC330
accommodates
Transient
suppression
to
MIL
‐
STD
‐
704D.
• +5V
+5%
‐
2.5%
DC
total
excursion,
including
all
transients
Vripple
(+5V)
=
50mV
RMS
maximum
contained
in
the
total
excursion.
• +3.3V
Aux
5%
DC
total
excursion,
including
all
transients
Vripple
(+5V)
=
50mV
RMS
maximum
contained
in
the
total
excursion.
WARNING
Do not exceed the maximum rated input voltages or apply reversed bias to the assembly. If
such conditions occur, toxic fumes may be produced due to the destruction of components.
A.2.2 Current consumption
Current
consumption
figures
for
SBC330
are
shown
below.
These
are
given
at
cold
‐
wall
temperatures
of
+25°C
and
+85°C
in
a
conduction
‐
cooled
environment
All
figures
were
measured
on
a
board
with
1
GByte
of
DDR2
RAM
and
256
MBytes
of
Flash.
Typical
consumption
was
measured
whilst
running
VxWorks
shell
prompt.
Maximum
consumption
was
measured
whilst
running
a
FFT
test
(on
both
cores
for
dual
‐
core
variants)
NOTE
P3V3_AUX current requirement has not been measured, but will be less than the 1.0 A provision of
the VPX Specification. The RTC backup from P3V3_AUX or VBAT takes 1.2 µA.
Table A-2
Supply
V MIN
V NOM
V MAX
VCC (Vs3)
+ 4.88V
+5.0V
+5.25V
P3V3_AUX
(optional)
+ 3.14V
+3.3V
+3.46V
P3V3_BAT
(optional)
+ 1.80V
+3.3V
+5.00V
Table A-3
Temperature
(°C)
Operation
5V Current (A)
Dual-core
@ 1.0 GHz
Dual-core
@ 1.5 GHz
+25
Idle - VxWorks prompt
5.6 Amps
6.1 Amps
Maximum - FFT test
TBD
TBD
+85
Typical - VxWorks prompt
TBD
TBD
Maximum - FFT test
TBD
TBD