Integration Manual
Table Of Contents
- Document information
- Contents
- 1 System description
- 1.1 Overview
- 1.2 Architecture
- 1.3 Pin-out
- 1.4 Operating modes
- 1.5 Supply interfaces
- 1.5.1 Module supply input (VCC)
- 1.5.1.1 VCC supply requirements
- 1.5.1.2 VCC current consumption in LTE connected mode
- 1.5.1.3 VCC consumption in deep-sleep mode (low power mode and PSM enabled)
- 1.5.1.4 VCC current consumption in low power idle mode (low power mode enabled)
- 1.5.1.5 VCC current consumption in active mode (low power mode and PSM disabled)
- 1.5.2 Generic digital interfaces supply output (V_INT)
- 1.5.1 Module supply input (VCC)
- 1.6 System function interfaces
- 1.7 Antenna interfaces
- 1.8 SIM interface
- 1.9 Data communication interfaces
- 1.10 Audio
- 1.11 General purpose input / output (GPIO)
- 1.12 Reserved pin (RSVD)
- 2 Design-in
- 2.1 Overview
- 2.2 Supply interfaces
- 2.2.1 Module supply (VCC)
- 2.2.1.1 General guidelines for VCC supply circuit selection and design
- 2.2.1.2 Guidelines for VCC supply circuit design using a switching regulator
- 2.2.1.3 Guidelines for VCC supply circuit design using low drop-out linear regulator
- 2.2.1.4 Guidelines for VCC supply circuit design using a rechargeable battery
- 2.2.1.5 Guidelines for VCC supply circuit design using a primary battery
- 2.2.1.6 Guidelines for external battery charging circuit
- 2.2.1.7 Guidelines for external charging and power path management circuit
- 2.2.1.8 Guidelines for removing VCC supply
- 2.2.1.9 Additional guidelines for VCC supply circuit design
- 2.2.1.10 Guidelines for VCC supply layout design
- 2.2.1.11 Guidelines for grounding layout design
- 2.2.2 Generic digital interfaces supply output (V_INT)
- 2.2.1 Module supply (VCC)
- 2.3 System functions interfaces
- 2.4 Antenna interfaces
- 2.5 SIM interface
- 2.6 Data communication interfaces
- 2.6.1 UART interfaces
- 2.6.1.1 Guidelines for UART circuit design
- Providing 1 UART with the full RS-232 functionality (using the complete V.24 link)
- Providing 1 UART with the TXD, RXD, RTS, CTS, DTR and RI lines only
- Providing 1 UART with the TXD, RXD, RTS and CTS lines only
- Providing 2 UARTs with the TXD, RXD, RTS and CTS lines only
- Providing 1 UART with the TXD and RXD lines only
- Providing 2 UARTs with the TXD and RXD lines only
- Additional considerations
- 2.6.1.2 Guidelines for UART layout design
- 2.6.1.1 Guidelines for UART circuit design
- 2.6.2 USB interface
- 2.6.3 SPI interfaces
- 2.6.4 SDIO interface
- 2.6.5 DDC (I2C) interface
- 2.6.1 UART interfaces
- 2.7 Audio
- 2.8 General purpose input / output (GPIO)
- 2.9 Reserved pin (RSVD)
- 2.10 Module placement
- 2.11 Module footprint and paste mask
- 2.12 Schematic for SARA-R5 series module integration
- 2.13 Design-in checklist
- 3 Handling and soldering
- 4 Approvals
- 5 Product testing
- Appendix
- A Migration between SARA modules
- B Glossary
- Related documents
- Revision history
- Contact
SARA-R5 series - System integration manual
UBX-19041356 - R03 Design-in Page 69 of 123
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2.5 SIM interface
2.5.1 Guidelines for SIM circuit design
2.5.1.1 Guidelines for SIM cards, SIM connectors and SIM chips selection
The ISO/IEC 7816, the ETSI TS 102 221 and the ETSI TS 102 671 specifications define the physical,
electrical and functional characteristics of Universal Integrated Circuit Cards (UICC), which contains
the Subscriber Identification Module (SIM) integrated circuit that securely stores all the information
needed to identify and authenticate subscribers over the LTE network.
Removable UICC / SIM card contacts mapping is defined by ISO/IEC 7816 and ETSI TS 102 221 as
follows:
Contact C1 = VCC (Supply) It must be connected to VSIM
Contact C2 = RST (Reset) It must be connected to SIM_RST
Contact C3 = CLK (Clock) It must be connected to SIM_CLK
Contact C4 = AUX1 (Auxiliary contact) It must be left not connected
Contact C5 = GND (Ground) It must be connected to GND
Contact C6 = VPP (Programming supply) It can be left not connected
Contact C7 = I/O (Data input/output) It must be connected to SIM_IO
Contact C8 = AUX2 (Auxiliary contact) It must be left not connected
A removable SIM card can have 6 contacts (C1, C2, C3, C5, C6, C7) or 8 contacts, also including the
auxiliary contacts C4 and C8. Only 5 contacts are required and must be connected to the module SIM
interface.
Removable SIM cards are suitable for applications requiring a change of SIM card during the product
lifetime.
A SIM card holder can have 6 or 8 positions if a mechanical card presence detector is not provided, or
it can have 6+2 or 8+2 positions if two additional pins relative to the normally-open mechanical switch
integrated in the SIM connector for the mechanical card presence detection are provided. Select a SIM
connector providing 6+2 or 8+2 positions if the optional SIM detection feature is required by the
custom application, otherwise a connector without integrated mechanical presence switch can be
selected.
Surface-Mounted UICC / SIM chip contact mapping (M2M UICC Form Factor) is defined by the ETSI
TS 102 671 as:
Case pin 8 = UICC contact C1 = VCC (Supply) It must be connected to VSIM
Case pin 7 = UICC contact C2 = RST (Reset) It must be connected to SIM_RST
Case pin 6 = UICC contact C3 = CLK (Clock) It must be connected to SIM_CLK
Case pin 5 = UICC contact C4 = AUX1 (Aux. contact) It must be left not connected
Case pin 1 = UICC contact C5 = GND (Ground) It must be connected to GND
Case pin 2 = UICC contact C6 = VPP (Progr. supply) It can be left not connected
Case pin 3 = UICC contact C7 = I/O (Data I/O) It must be connected to SIM_IO
Case pin 4 = UICC contact C8 = AUX2 (Aux. contact) It must be left not connected
A Surface-Mounted SIM chip has 8 contacts and can also include the auxiliary contacts C4 and C8 for
other uses, but only 6 contacts are required and must be connected to the module SIM card interface
as described above.
Surface-Mounted SIM chips are suitable for M2M applications where it is not required to change the
SIM once installed.