
ST20-GP1
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17 Electrical specifications
Absolute maximum ratings
Operation beyond the absolute maximum ratings may cause permanent damage to the device.
All voltages are measured referred to
GND
.
Notes
1
For a package junction to case thermal resistance of 14
°
C/W.
For reliability reasons the long-term current from any pin may be limited to a lower value
than stated here.
Operating conditions
2
Notes
1
2
For a package junction to case thermal resistance of 14
°
C/W.
The nominal input clock frequency must be 16.368 MHz for the DSP module to function cor-
rectly with the GPS satellites.
Symbol
Parameter
Min
Max
Units
Notes
V
DD
DC power supply
-0.5
4.5
V
V
DDrtc
Voltage at
RTCVDD
pin referred to
GND
-0.5
4.5
V
T
s
Storage temperature (ambient)
-55
125
°
C
°
C
mA
T
j
Temperature under bias (junction)
-40
125
1
I
o
Continuous DC output current from any output pin.
-20
20
2
V
i
Applied voltage to all functional pins excluding
LPClockIn,
notRST
and test control pins.
-0.5
V
DD
+ 0.5
V
V
irtc
Applied voltage to
LPClockIn,
notRST
and test control pins.
-0.5
V
DDrtc
+ 0.5
V
V
o
Voltage on bi-directional and output pins except
notMemCE0
.
-0.5
V
DD
+ 0.5
V
V
ortc
Voltage on the
notMemCE0
pin
-0.5
V
DDrtc
+ 0.5
V
PD
max
Power dissipation in package
2.0
W
Table 17.1 Absolute maximum ratings
Symbol
Parameter
Min
Max
Units
Notes
T
a
Ambient operating temperature of case
-40
85
°
C
°
C
V
T
j
Operating temperature of junction
-40
125
1
V
i
Applied voltage to all functional input pins and bidirectional pins
excluding
LPClockIn
,
notRST
and test control pins.
0
V
DD
V
irtc
Applied voltage to
LPClockIn,
notRST
and test control pins
0
V
DDrtc
V
f
clk
ClockIn
frequency
ClockIn
frequency in
TimesOneMode
16.5
36
MHz
MHz
2
C
l
Load capacitance per pin
50
pF
Table 17.2 Operating conditions