Service Guide
Table Of Contents
- Safety Information
- About the Document
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Overview
- 3 Operating Characteristics
- 4 Application Interfaces
- 5 Antenna Interfaces
- 6 Electrical Characteristics and Reliability
- 7 Mechanical Information and Packaging
LTE-A Module Series
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4 Application Interfaces
4.1. (U)SIM Interface
The (U)SIM interface circuitry meets ETSI and IMT-2000 requirements and ISO/IEC 7816-3. Both Class B
(3.0 V) and Class C (1.8 V) (U)SIM cards are supported, and Dual SIM Single Standby function is
supported.
4.1.1. Pin definition of (U)SIM
Table 13: Pin Definition of (U)SIM Interfaces
USIM1_DET and USIM2_DET are pulled low by default, and will be internally pulled up to 1.8 V by
Pin No. Pin Name I/O Description Comments
36 USIM1_VDD PO (U)SIM1 card power supply 1.8/3.0 V
34 USIM1_DATA DIO, PD (U)SIM1 card data
USIM1_VDD
1.8/3.0 V
32 USIM1_CLK DO, PD (U)SIM1 card clock
30 USIM1_RST DO, PD (U)SIM1 card reset
66 USIM1_DET DI, PD (U)SIM1 card hot-plug detect 1.8 V
40 USIM2_DET* DI, PD (U)SIM2 card hot-plug detect 1.8 V
42 USIM2_DATA DIO, PD (U)SIM2 card data
USIM2_VDD
1.8/3.0 V
44 USIM2_CLK DO, PD (U)SIM2 card clock
46 USIM2_RST DO, PD (U)SIM2 card reset
48 USIM2_VDD PO (U)SIM2 card power supply 1.8/3.0 V
NOTE