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Si4322
GENERAL DEVICE SPECIFICATION
All voltages are referenced to V ss , the potential on the ground reference pin VSS.
Absolute Maximum Ratings (non-operating)
C
C
Symbol
V dd
V in
I in
ESD
T st
T ld
Parameter
Positive supply voltage
Voltage on any pin
Input current into any pin except VDD and VSS
Electrostatic discharge with human body model
Storage temperature
Lead temperature (soldering, max 10 s)
Min
-0.5
-0.5
-25
-55
Max
6.0
V dd +0.5
25
1000
125
260
Units
V
V
mA
V
o
o
Recommended Operating Range
ELECTRICAL SPECIFICATION
(Min/max values are valid over the whole recommended operating range, typ conditions: T op = 27 o C; V dd = 2.7 V)
DC Characteristics
Symbol
P aramete r
Symbol
Parameter
V
Conditions/Notes
Min Typ
Positive supply voltage
Max
Units
10.5 12.5
I dd
Supply current
868 MHz band T
915 MHz band
op
Ambient operating temperature
12 14
mA
I pd
I lb
I x
Standby current
Low battery voltage detector and
wake-up timer current
Idle current
all blocks disabled
crystal oscillator is ON
1
0.5
5
μA
μA
mA
V lb
V lba
V POR
Low battery detection threshold
Low battery detection accuracy
V dd threshold required
to generate a POR
programmable in 0.1 V steps
2.0
± 0.05
1.5
3.5
V
V
V
larger glithches on the V dd
V POR,hyst
POR hysteresis
generate a POR even above
0.6
V
the threshold V POR
SR Vdd
V il
V ih
V dd slew rate
Digital input low level
Digital input high level
for proper POR generation
0.1
0.7*V dd
0.3*V dd
V/ms
V
V
I il
I ih
Digital input current
Digital input current
V il = 0 V
V ih = V dd , V dd = 3.8 V
-1
-1
1
1
μA
μA
V ol
V oh
Digital output low level
Digital output high level
I ol = 2 mA
I oh = -2 mA
V dd -0.4
0.4
V
V
5
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