Key Features - Quectel EG915U-EU Manual

2.2. Key Features

Table 4: Key Features
Features
Power Supply
SMS
(U)SIM Interface
Audio Features
PCM Interface
SPI Interface
I2C Interface
USB Interface
UART Interfaces
EG915U-EU_Hardware_Design
Details
⚫
Supply voltage: 3.3 V-4.3 V
⚫
Typical supply voltage: 3.8 V
⚫
Text and PDU mode.
⚫
Point-to-point MO and MT.
⚫
SMS cell broadcast.
⚫
SMS storage: ME by default.
Supports USIM/SIM card: 1.8 V, 3.0 V
⚫
Supports two analog audio interfaces: one analog
audios input and one analog audios output.
⚫
GSM: HR/FR/EFR/AMR/AMR-WB
⚫
Used for audio function with external codec
⚫
Supports slave modes, not master mode.
⚫
Provides a duplex, synchronous and serial
communication link with the peripheral devices.
⚫
One SPI interface, only supports master mode.
⚫
1.8 V operation voltage with clock rates up to 25 MHz.
⚫
One I2C interface
⚫
Comply with I2C-bus specification version
⚫
Compliant with USB 2.0 specification (only slave),
with transmission rates up to 480 Mbps
⚫
Used for AT command communication, data
transmission, software debugging, firmware upgrade
USB Serial Driver: supports USB serial driver for
Windows 7/8/8.1/10, Linux 2.6/3.x/4.1–5.12 and
Android 4.x–11.x systems
Main UART:
⚫
Used for AT command communication and data
transmission.
⚫
Baud rate: 115200 bps by default.
⚫
Supports RTS and CTS hardware flow control.
Debug UART:
⚫
Used for Linux console and log output.
⚫
Baud rate: 921600 bps.
⚫
Only use for debug UART, cannot use for universal
UART.
LTE Standard Module Series
13 / 81