User's Manual
Table Of Contents
- About the Document
- Contents
- Table Index
- Figure Index
- 1 Introduction
- 2 Product Concept
- 3 Application Interface
- 3.1. General Description
- 3.2. Pin Assignment
- 3.3. Pin Description
- 3.4. Operating Modes
- 3.5. Power Saving
- 3.6. Power Supply
- 3.7. Turn on and off Scenarios
- 3.8. Reset the Module
- 3.9. RTC Backup
- 3.10. UART Interface
- 3.11. USIM Card Interface
- 3.12. USB Interface
- 3.13. PCM and I2C Interface
- 3.14. ADC Function
- 3.15. Network Status Indication
- 3.16. Operating Status Indication
- 3.17. Behavior of the RI
- 4 GNSS Receiver
- 5 Antenna Interface
- 6 Electrical, Reliability and Radio Characteristics
- 7 Mechanical Dimensions
- 8 Storage and Manufacturing
- 9 Appendix A Reference

UMTS/HSPA Module Series
UC20 Hardware Design
UC20_Hardware_Design Confidential / Released 44 / 84
3.11.2. Design Considerations for USIM Connector
For 8-pin USIM connector, it is recommended to use Molex 91228. Please visit http://www.molex.com for
more information.
Figure 24: Molex 91228 USIM Connector
Table 13: Pin Description of Molex USIM Connector
Name
Pin
Function
VDD
C1
USIM card power supply.
RST
C2
USIM card reset.
CLK
C3
USIM card clock.
/
C4
Not defined.
GND
C5
Ground.
VPP
C6
Not connected.
DATA I/O
C7
USIM card data.
/
C8
Pull-down GND with external circuit. When the tray is present, C4
is connected to C8.