Product Info
Table Of Contents
- About the Document
- Contents
- Table Index
- Figure Index
- Introduction
- Product Concept
- Application Interfaces
- GNSS Receiver
- Antenna Interfaces
- Electrical, Reliability and RadioCharacteristics
- Mechanical Dimensions
- Storage, Manufacturing and Packaging
- Appendix A References
LTE Module Series
EG61-NA Hardware Design
EG61-NA_Hardware_Design 38 / 77
V
IL
≤ 0.5V
V
IH
≥ 1.3V
VBAT
≥ 150ms
Resetting
Module
Status
Running
RESET_N
Restart
≤ 460ms
Figure 16: Timing of Resetting Module
1. RESET_N is only used when the module fails to be shut down via AT+QPOWD command and the
PWRKEY pin.
2. Ensure that there is no large capacitance on PWRKEY and RESET_N pins.
3.9. (U)SIM Interfaces
EG61-NAprovides two (U)SIMinterfaces, andonly one (U)SIMcard can work at a time.The (U)SIM1 and
(U)SIM2cardscan be switched by AT+QDSIM*command.For more details, please refer to document [2].
The(U)SIMinterfacescircuitrymeet ETSI and IMT-2000 requirements. Both 1.8V and 3.0V (U)SIMcards
are supported.
Table 9: Pin Definition of (U)SIMInterfaces
Pin Name Pin No. I/O Description Comment
USIM1_VDD 43 PO Power supply for (U)SIM1 card
Either 1.8V or 3.0V is
supported by the module
automatically.
USIM1_DATA 45 IO Data signal of (U)SIM1 card
USIM1_CLK 46 DO Clock signal of (U)SIM1card
USIM1_RST 44 DO Reset signal of (U)SIM1 card
USIM1_
PRESENCE
42 DI (U)SIM1 card insertion detection
NOTES