Quectel EG915U-EU - Key Features

LTE Standard Module Series
EG915U-EU_Hardware_Design 13 / 81
2.2. Key Features
Table 4: Key Features
Features
Details
Power Supply
⚫ Supply voltage: 3.3 V-4.3 V
⚫ Typical supply voltage: 3.8 V
SMS
⚫ Text and PDU mode.
⚫ Point-to-point MO and MT.
⚫ SMS cell broadcast.
⚫ SMS storage: ME by default.
(U)SIM Interface
Supports USIM/SIM card: 1.8 V, 3.0 V
Audio Features
⚫ Supports two analog audio interfaces: one analog
audios input and one analog audios output.
⚫ GSM: HR/FR/EFR/AMR/AMR-WB
PCM Interface
⚫ Used for audio function with external codec
⚫ Supports slave modes, not master mode.
SPI Interface
⚫ 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.
I2C Interface
⚫ One I2C interface
⚫ Comply with I2C-bus specification version
USB Interface
⚫ 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
UART Interfaces
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.