Usim Card - Sunsea AIoT SIMCom SIM5800 Hardware Design

4.13 USIM Card

SIM5800 supports dual cards dual standby, and card presence detection.
Table 16: Pin definitions of the USIM
Pin Name Pin
USIM2_DET 17
USIM2_RST 18
USIM2_CLK 19
USIM2_DAT 20
USIM2_VDD 21
USIM1_DET 22
USIM1_RST 23
USIM1_CLK 24
USIM1_DAT 25
USIM1_VDD 26
SIM5800_Hardware Design_V1.01
Smart Machine Smart Decision
MICBIAS0
PMIC
C
Module
Figure 30: MICBIAS0 Internal Circuit
MICBIAS1
C
PMIC
Module
Figure 31: MICBIAS1 Internal Circuit
I/O Description
I USIM2 presence detection
O USIM2 reset
O USIM2 clock
I/O USIM2 data
P USIM2 power
I USIM1 presence detection
O USIM1 reset
O USIM1 clock
I/O USIM1 data
P USIM1 power
R
R
R
C
MIC1P
C
MIC1N
C
R
R
MIC2P
176
R
EAR_MICP
6
39
175
4
5
178
2018-10-08