Yuga CLM920 TE5 LTE Module Hardware Manual
Table Of Contents
- 1 Introduction
- 2 Product Overview
- 3 Application Interface
- 4 Overall Technical Indicators
- 5 Interface electrical characteristics
- 6 Structural and mechanical properties
CLM920_TE5 LTE Module Hardware Manual
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YUGA Information Technology Co.,Ltd
Figure 3- 13 Level conversion circuit
3.7 USIM interface
CLM920_TE5 module provides a USIM card interface compatible with the ISO
7816-3 standard. The USIM card power provided by module’s internal power manager
and supports 1.8V/3.0V USIM card.
Table 3- 9 USIM Pin definitions
Pin
Signal name
I/O
High value
Description
6
UIM_DET
DI
1.8V
SIM hot-plug detection
8
UIM_PWR
PO
1.8V/2.85V
SIM card power supply
10
UIM_DATA
IO
1.8V/2.85V
SIM data signal
12
UIM_CLK
DO
1.8V/2.85V
SIM clock signal
14
UIM_RESET
DO
1.8V/2.85V
SIM reset signal
3.7.1 USIM card reference circuit
CLM920_TE5 module need to design a USIM card slot on customer’s own interface
board. USIM card interface reference design diagram is as follow:
Figure 3- 14 USIM design circuit
① Recommended ONSEMI company’s SMF15C for ESD protection on the interface
VCC
DATA
CLK
RST
SIM_CLK
Module
SIM_VCC
SIM_DATA
SIM_RST
33pF
33pF
33pF
33pF
22R
22R
22R
0R
GND
VPP
USIM