Huawei MS2131 - 4.3 SIM Card Port Introduction

MS2131
Hardware Design Guide
MS2131 Interface Features and Design Requirements
Issue 02 (2017-1-13)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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low-dropout regulator (LDO) is used for the power supply, the transient current capacity must
be considered.
4.3 SIM Card Port Introduction
A standard SIM card port is embedded in the MS2131. The port supports the 3.0 V and 1.8 V
SIM cards. No external design is required.