Quectel SG368Z Series

Smart Module Series
SG368Z_Series_Hardware_Design 96 / 113
Table 51: SD Card Low-voltage I/O Characteristics (Unit: V)
6.5. ESD Protection
Static electricity occurs naturally and it may damage the module. Therefore, applying proper ESD
countermeasures and handling methods is imperative. For example, wear anti-static gloves during the
development, production, assembly and testing of the module; add ESD protection components to the
ESD sensitive interfaces and points in the product design.
Table 52: ESD Characteristics (Temperature: 25–30 °C, Humidity: 40 ±5 %, Unit: kV)
V
OH
High-level output voltage
2.4
VCCIO3 + 0.3
V
OL
Low-level output voltage
-0.3
0.4
Parameter
Description
Min.
Max.
V
IH
High-level input voltage
0.65 × VCCIO3
VCCIO3 + 0.3
V
IL
Low-level input voltage
-0.3
0.35 × VCCIO3
V
OH
High-level output voltage
1.4
VCCIO3 + 0.3
V
OL
Low-level output voltage
-0.3
0.4
Test Points
Contact Discharge
Air Discharge
VBAT and GND
±TBD
±TBD
Antenna interface
±4
±8
Other interfaces
±TBD
±TBD