The Ebyte E73-2G4M54 series consists of ultra-low power 2.4GHz multi-protocol wireless SoC modules built on Nordic nRF54L05, nRF54L10, and nRF54L15 architectures featuring Arm Cortex-M33 and RISC-V coprocessors, delivering up to 8dBm transmit power, -104dBm sensitivity, and line-of-sight range up to 200m with onboard PCB or IPEX antenna options for industrial IoT applications.
| Specification | Value |
|---|---|
| Operating Frequency | 2.400 - 2.4835 GHz |
| Core SoC Options | Nordic nRF54L10 / nRF54L05 / nRF54L15 |
| Transmit Power | 7 dBm (nRF54L10/05) / 8 dBm (nRF54L15) |
| Receiver Sensitivity | -104 dBm @ BLE 1 Mbps |
| Communication Distance | 110m (PCB) / 180m - 200m (IPEX Antenna) |
| Supported Protocols | Bluetooth 5.4, Bluetooth Mesh, Thread, Matter, 2.4GHz Proprietary |
| Interface Hardware | UART, SPI, I2C, GPIO, ADC, PWM |
Key Features
-
Nordic nRF54L Architecture Integration: Powered by next-gen Arm Cortex-M33 processing cores combined with RISC-V coprocessors, providing enhanced computing power and secure processing capability for multi-protocol edge computing.
-
Ultra-Low Energy Efficiency: Optimized for battery-operated IoT deployments with ultra-low power consumption profiles, achieving approximately 3.4 mA operational current in BLE mode and system-off sleep current down to 0.7 uA.
-
Versatile Antenna Configurations: Available in both space-saving integrated PCB antenna packages and ultra-compact 12.0x12.0mm LGA forms with IPEX Gen 3 connectors for flexible RF enclosure integration.
-
Industrial Multi-Protocol Support: Full hardware readiness for Bluetooth 5.4, Bluetooth Mesh, Thread, and Matter networks, ensuring long-term compatibility for smart building and factory automation infrastructures.
| Parameter | E73-2G4M54LP(05) | E73-2G4M54LX(05) | E73-2G4M54LP(10) | E73-2G4M54LX(10) | E73-2G4M54LP(15) | E73-2G4M54LX(15) |
|---|---|---|---|---|---|---|
| Chip Model | nRF54L05 | nRF54L05 | nRF54L10 | nRF54L10 | nRF54L15 | nRF54L15 |
| Core | Arm Cortex®-M33 + RISC-V | Arm Cortex®-M33 + RISC-V | Arm Cortex®-M33 + RISC-V | Arm Cortex®-M33 + RISC-V | Arm Cortex®-M33 + RISC-V | Arm Cortex®-M33 + RISC-V |
| RAM | 96 KB | 96 KB | 192 KB | 192 KB | 256 KB | 256 KB |
| NVM (Flash) | 500 KB | 500 KB | 1012 KB | 1012 KB | 1524 KB | 1524 KB |
| Operating Frequency Band | 2.4 GHz | 2.4 GHz | 2.4 GHz | 2.4 GHz | 2.4 GHz | 2.4 GHz |
| Receiver Sensitivity | -104 dBm | -104 dBm | -104 dBm | -104 dBm | -104 dBm | -104 dBm |
| Transmit Power | 7 dBm | 7 dBm | 7 dBm | 7 dBm | 8 dBm | 8 dBm |
| Emission Current | ≈4.8 mA @0 dBm (instantaneous) | ≈4.8 mA @0 dBm (instantaneous) | ≈4.8 mA @0 dBm (instantaneous) | ≈4.8 mA @0 dBm (instantaneous) | ≈4.8 mA @0 dBm (instantaneous) | ≈4.8 mA @0 dBm (instantaneous) |
| Operating Current | ≈3.4 mA, BLE @1 Mbps | ≈3.4 mA, BLE @1 Mbps | ≈3.4 mA, BLE @1 Mbps | ≈3.4 mA, BLE @1 Mbps | ≈3.4 mA, BLE @1 Mbps | ≈3.4 mA, BLE @1 Mbps |
| Quiescent Current | ≈0.7 µA, System OFF | ≈0.7 µA, System OFF | ≈0.7 µA, System OFF | ≈0.7 µA, System OFF | ≈0.7 µA, System OFF | ≈0.7 µA, System OFF |
| Communication Distance | 110 m | 180 m | 110 m | 180 m | 130 m | 200 m |
| Crystal Frequency | 32 MHz / 32.768 kHz | 32 MHz / 32.768 kHz | 32 MHz / 32.768 kHz | 32 MHz / 32.768 kHz | 32 MHz / 32.768 kHz | 32 MHz / 32.768 kHz |
| Dimensions | 12.0 × 17.2 mm | 12.0 × 12.0 mm | 12.0 × 17.2 mm | 12.0 × 12.0 mm | 12.0 × 17.2 mm | 12.0 × 12.0 mm |
| Antenna Type | Onboard PCB | IPEX Gen. 3 | Onboard PCB | IPEX Gen. 3 | Onboard PCB | IPEX Gen. 3 |
| Package | LGA | LGA | LGA | LGA | LGA | LGA |
| Interface | UART, SPI, I²C, GPIO, ADC, etc. | UART, SPI, I²C, GPIO, ADC, etc. | UART, SPI, I²C, GPIO, ADC, etc. | UART, SPI, I²C, GPIO, ADC, etc. | UART, SPI, I²C, GPIO, ADC, etc. | UART, SPI, I²C, GPIO, ADC, etc. |
Industrial Installation & Wiring
The E73-2G4M54 series modules are engineered with standard LGA surface-mount packages, designed for automated SMT placement onto customer carrier PCBs. For models equipped with IPEX Gen 3 connectors (LX series), ensure proper coaxial cable strain relief when routing to external panel-mount SMA connectors.
| Serial Number | Pin Name | Pin orientation | Pin Function |
|---|---|---|---|
| 1 | P1.09 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 2 | P1.10 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 3 | P1.11 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 4 | P1.12 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 5 | P1.13 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 6 | P1.14 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 7 | P1.04 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 8 | P1.02 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 9 | VDD | Input | Power supply interface, DC 1.8‑3.6V |
| 10 | GND | ‑ | Ground wire, connected to the power supply reference ground |
| 11 | CLK | Input/Output | Program Debugging/Download Port SWCLK |
| 12 | SWD | Input/Output | Program Debugging/Download Port SWDIO |
| 13 | P1.03 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 14 | P1.06 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 15 | P1.05 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 16 | P1.07 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 17 | P1.08 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 18 | P2.00 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 19 | nRESET | Input | Reset pin, low‑level reset |
| 20 | P2.01 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 21 | P2.02 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 22 | P2.03 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 23 | P2.06 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 24 | P2.08 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 25 | P2.10 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 26 | P0.01 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 27 | P2.04 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 28 | P2.05 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 29 | P0.00 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 30、31 | GND | ‑ | Ground wire, connected to the power supply reference ground |
| 32 | P0.02 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 33 | P0.04 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 34 | P0.03 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 35 | P2.09 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 36 | P2.07 | Input/Output | Configurable General‑Purpose I/O Ports (see nRF54L15 manual for details) |
| 37‑40 | GND | ‑ | Ground wire, connected to the power supply reference ground |
Practical Application Scenarios
-
Industrial Wireless Sensor Networks (WSN)
In automated manufacturing plants, E73-2G4M54 modules act as low-power wireless sensor nodes connecting temperature, vibration, and pressure sensors. Operating over Bluetooth Mesh, the nodes relay real-time telemetry back to central industrial gateways, leveraging low sleep current (0.7 uA) to ensure years of maintenance-free battery operation.
-
Commercial Building Automation & Matter Ecosystems
By utilizing the embedded nRF54L architecture's multi-protocol capabilities, the module enables smart lighting controllers and HVAC actuators to communicate across Thread and Matter protocols simultaneously, ensuring seamless interoperability across heterogeneous commercial automation infrastructure.
-
Medical & Wearable Health Monitoring Devices
The compact 12.0 x 12.0 mm footprint of the LX series makes it optimal for portable medical telemetry equipment. Combined with high processing performance and BLE 5.4 encrypted data transfers, it securely streams patient continuous monitoring metrics to local bed-side monitors or mobile diagnostic terminals.
-
Smart Logistics & Asset Tracking
Integrated into asset tags and warehouse scanners, the module's 7 dBm transmit power combined with an external IPEX antenna provides stable signal penetration through dense storage racks up to 180 meters, delivering accurate indoor location tracking and inventory telemetry.
FAQ Section
-
What are the memory and processing differences between nRF54L05, nRF54L10, and nRF54L15 options?
The nRF54L05 variant features 500 KB NVM Flash and 96 KB RAM for cost-effective standard BLE edge applications. The nRF54L10 increases capacity to 1012 KB Flash and 192 KB RAM for complex protocols, while the nRF54L15 offers 1524 KB Flash and 256 KB RAM with up to 8 dBm TX power for demanding multi-protocol or Matter applications.
-
What is the physical range difference between the LP and LX hardware variants?
The LP variant utilizes an integrated PCB antenna ideal for fully enclosed compact designs, reaching a line-of-sight distance of 110 meters. The LX variant features an IPEX Gen 3 connector allowing attachment to high-gain external dipoles, extending transmission reach up to 180 - 200 meters.
-
Can the E73-2G4M54 series module operate as a standalone controller without an external MCU?
Yes. Thanks to the onboard Arm Cortex-M33 application processor paired with rich peripheral interfaces (UART, SPI, I2C, ADC, GPIO), developers can load custom application firmware directly onto the module, eliminating the need for an external system host controller.
-
What RF certifications apply to products incorporating these modules?
The E73-2G4M54 series design follows standard modular layouts to assist end-product compliance for major regional RF regulatory standards, including FCC (USA), CE (Europe), KC (Korea), and SRRC (China).
