User Manual

Smart Machine Smart Decision
T5320_User Guide_V1.04 25 2013- 04-15
2. Place far away from metal material.
3. Face the base station antenna directly if the signal strength is very weak.
7 Electrical, Reliability and Radio Characteristics
7.1 Absolute Maximum Ratings
The absolute maximum ratings stated in following table are stress ratings under non-operating conditions. Stresses
beyond any of these limits will cause permanent damage to T5320.
Table 15: Absolute maximum ratings
Symbol Parameter Min Typ Max Unit
VBAT Power supply voltage 5 - 30 V
V
I
*
Input voltage -0.3 - 2.8 V
I
I
*
Input current - - 6 mA
I
O
*
Output current - - 6 mA
*
These parameters are for digital interface pins, such as GPIO, UART.
7.2 Recommended Operating Conditions
Table 16: Recommended operating conditions
Symbol Parameter Min Typ Max Unit
VBAT Power supply voltage 5 5 30 V
I
IH
High-level input current -10 - 10 uA
I
IL
Low-level input current -10 - 10 uA
V
IH
High-level input voltage 2.4 - - V
V
IL
Low-level input voltage - - 0.4 V
V
OH
High-level output voltage 2.6 - - V
V
OL
Low-level output voltage - - 0.1 V
T
OPER
Operating temperature -35 +25 +80 ℃
T
STG
Storage temperature -40 +85 ℃
7.3 Electro-Static Discharge
T5320 is an ESD sensitive component, so more attention should be paid to the procedure of handling and
packaging. The ESD test results are shown in the following table.