Digital I/O Characteristics; Esd Protection - Quectel FGM842D Hardware Design

6.4. Digital I/O Characteristics

Table 23: VBAT I/O Requirements (Unit: V)
Parameter
V
IH
V
IL
V
OH
V
OL

6.5. ESD Protection

Static electricity occurs naturally and 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 24: ESD Characteristics (Unit: kV)
Model
Human Body Model (HBM)
Charged Device Model (CDM)
FGM842D_Hardware_Design
Description
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
Test Result
± 2
± 0.5
Wi-Fi&Bluetooth Module Series
Min.
0.7 × VBAT
0
0.9 × VBAT
-
Standard
ANSI/ESDA/JEDEC JS-001-2017
ANSI/ESDA/JEDEC JS-002-2018
Max.
VBAT
0.3 × VBAT
-
0.1 × VBAT
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