Service Guide

LTE-A Module Series
EM060K-GL&EM120K-GL_Hardware_Design 68 / 78
6.4. Digital I/O Characteristics
Table 41: 1.8 V Digital I/O Requirements)
Table 42: 3.3 V Digital I/O Requirements
Table 43: (U)SIM 1.8 V I/O Requirements
Parameter Description Min. Max. Unit
V
IH
Input high voltage 1.65 2.1 V
V
IL
Input low voltage -0.3 0.54 V
V
OH
Output high voltage 1.3 1.8 V
V
OL
Output low voltage 0 0.4 V
Parameter Description Min. Max. Unit
3.3 V Power Domain 3.135 3.464 V
V
IH
Input high voltage 2.0 3.6 V
V
IL
Input low voltage -0.5 0.8 V
Parameter Description Min. Max. Unit
USIM_VDD Power supply 1.65 1.95 V
V
IH
Input high voltage 0.7 × USIM_VDD USIM_VDD + 0.3 V
V
IL
Input low voltage -0.3 0.2 × USIM_VDD V
V
OH
Output high voltage 0.8 × USIM_VDD USIM_VDD V
V
OL
Output low voltage 0 0.4 V