U)Sim Interfaces - Quectel EC200U Series Hardware Design

The timing of resetting module is illustrated in the following figure.
VBAT
RESET_N
Module
Status
NOTE
1. Ensure that there is no large capacitance exceeding 10 nF on PWRKEY and RESET_N.
2. It is recommended to use RESET_N only when the module cannot be turned off by AT+QPOWD or
PWRKEY.

3.8. (U)SIM Interfaces

The module provides two (U)SIM interfaces, and it supports DSDS function. The (U)SIM interfaces meet
ETSI and IMT-2000 requirements. Both 1.8 V and 3.0 V (U)SIM cards are supported.
Table 12: Pin Definition of (U)SIM1 Interface
Pin Name Pin No.
USIM_VDD 14
USIM_DATA 15
USIM_CLK 16
USIM_RST 17
EC200U_Series_Hardware_Design
≥ 100 ms
V
Running
Baseband resetting
Figure 16: Timing of Resetting Module
I/O Description
PO (U)SIM card power supply
DIO (U)SIM card data
DO (U)SIM card clock
DO (U)SIM card reset
≤ 0.5 V
IL
Baseband restart
Comment
Either 1.8 V or 3.0 V (U)SIM card
is supported and can be identified
automatically by the module.
LTE Standard Module Series
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