Electrical, Reliability And Radio Characteristics; Absolute Maximum Ratings; Recommended Operating Conditions - SimCom SIM68R Hardware Design

5 Electrical, Reliability and Radio Characteristics

5.1

Absolute Maximum Ratings

The absolute maximum ratings stated in Table 7 are stress ratings under non-operating conditions. Stresses
beyond any of these limits will cause permanent damage to SIM68R.
Table 7: Absolute maximum ratings
Parameter
VCC
V_ANT
RF_IN
V_BACKUP
I/O pin voltage
Storage temperature
Operating Temperature
5.2

Recommended Operating Conditions

Table 8: SIM68R operating conditions
Parameter
Operating temperature range
Main supply voltage
Active antenna supply voltage
output
Backup battery voltage
Table 9: SIM68R standard IO features
Parameter
Low level output voltage
Test conditions IOL = 2mA and 4.0mA
High level output voltage
Test conditions IOL = 2mA and 4.0mA
Low level input voltage
High level input voltage
Input Pull-up resistance
Input Pull-dowm resistance
Input capacitance
SIM68R_Hardware Design_V1.02
Min
-
-5.5V
-
-
-
-45
-40
Symbol Min
-40
VCC 2.8
VCC_RF 2.7
Imax
V_BACKUP 2.3
Symbol
V
ol
V
oh
V
il
V
ih
R
PU
R
PD
C
in
32
Smart Machine Smart Decision
Max Unit
4.3 V
+5.5 V
3.08 V
4.6 V
3.6 V
+125 ℃
+85
℃
Typ Max
+25 +85
3 4.3
2.8 2.9
20
3.6
Min Typ
-0.3
2.4
-0.3
2.0
40
40
5
Unit
℃
V
V
mA
V
Max Unit
0.40 V
3.1 V
0.8 V
3.6 V
190 KΩ
190 KΩ
pF
2013.01.22