Quectel EC25 Hardware Design

LTE Module Series
EC25 Mini PCIe Hardware Design
EC25_Mini_PCIe_Hardware_Design Confidential / Released 15 / 42
Table 4: Description of Pins
Pin No.
Mini PCI Express
Standard Name
EC25 Mini PCIe
Pin Name
I/O
Description
Comment
1
WAKE#
WAKE#
OC
Output signal can be used
to wake up the host.
2
3.3Vaux
VCC_3V3
PI
3.3V DC supply
3
COEX1
RESERVED
Reserved
4
GND
GND
Mini card ground
5
COEX2
RESERVED
Reserved
6
1.5V
NC
7
CLKREQ#
RESERVED
Reserved
8
UIM_PWR
USIM_VDD
PO
Power source for the USIM
card
9
GND
GND
Mini card ground
10
UIM_DATA
USIM_DATA
IO
USIM data signal
11
REFCLK-
UART_RX
DI
UART receive data
Connect to
DTE’s TX
12
UIM_CLK
USIM_CLK
DO
USIM clock signal
13
REFCLK+
UART_TX
DO
UART transmit data
Connect to
DTE’s RX
14
UIM_RESET
USIM_RST
DO
USIM reset signal
15
GND
GND
Mini card ground
16
UIM_VPP
RESERVED
Reserved
17
RESERVED
RI
DO
Output signal can be used
to wake up the host.
18
GND
GND
Mini card ground
19
RESERVED
RESERVED
Reserved
20
W_DISABLE#
W_DISABLE#
DI
Disable wireless
communications
Pull-up by
default
Active low
21
GND
GND
Mini card ground
22
PERST#
PERST#
DI
Functional reset to the card
Active low
23
PERn0
UART_CTS
DI
UART clear to send
Connect to
DTE’s RTS
Quectel
Confidential

Quectel EC25 Specifications

General

Category	LTE Module
LTE TDD	B38/B40/B41
WCDMA	B1/B5/B8
GSM	850/900/1800/1900 MHz
Data rates	LTE Cat 4: 150 Mbps DL/50 Mbps UL
GNSS	GPS/GLONASS/BeiDou/Galileo/QZSS
Operating Temperature	-40°C to +85°C
Form Factor	LCC
Storage Temperature	-45°C to +90°C
SIM Interface	1.8V/3.0V
Antenna Interface	Main, Diversity, GNSS
LTE FDD	B1/B3/B5/B7/B8/B20
Interfaces	USB 2.0, UART, PCM, GPIO
Operating Voltage	3.3V - 4.3V
Protocols	TCP/IP, UDP, FTP, HTTP, HTTPS
Certifications	CE, FCC, PTCRB, GCF, RCM, IC