MK19 is a powerful, highly flexible and cost-effective Bluetooth module based on world-leading Nordic® Semiconductor nRF54L15 SoC solution, which integrates an ultra-low power multi-protocol 2.4GHz radio and MCU functionality featuring a 128 MHz Arm® Cortex™-M33 processor, comprehensive peripheral set, and scalable memory configurations to 1.5 MB NVM and 256 KB RAM.
MK19 module follows the size and package of most MOKO Bluetooth modules such as the MK02 (nRF52832 SoC), MK07 (nRF52833 SoC), MK08 (nRF52840 SoC) and MK13 (nRF5340 SoC), allowing you to easily and quickly upgrade your hardware to the latest and powerful nRF54L15 Bluetooth solution without re-designing hardware.
MK19A
PCB antenna is used. No need to design another antenna. u.FL connector will not be mounted on the PCB.
MK19B
The PCB antenna is disabled. You need to select an external 2.4Ghz antenna to connect to the u.FL connector.
| Detail | Description |
| Chip | nRF54L15 |
| Bluetooth Version | Bluetooth 6.0 |
| MCU | ARM® Cortex®-M33, 128 MHz |
| RAM | 256 KB |
| Flash | 1524 KB non-volatile memory (RRAM) |
| Tx Power | -46 dBm to +8 dBm, 1 dB step size from -10 dBm to +8 dBm |
| Receiver sensitivity | -96 dBm sensitivity in 1 Mbps Bluetooth® LE mode
-104 dBm sensitivity in 125 kbps Bluetooth® LE mode -101 dBm sensitivity in IEEE 802.15.4 with a 37 bytes packet length |
| Clock Control | On-chip 128 MHz phase-locked loop (PLL) with internal oscillator 32MHz crystal oscillator Embedded 32.768 kHz RC oscillator and external 32.768kHz crystal oscillator |
| Power Supply | 1.7V to 3.6V DC |
| Power Regulator | Switching regulator for DC/DC buck setup |
| Power Consumption | Peak current 10.0 mA (BLE TX 1 Mbps @ +8 dBm and 3.0V) 3.0 uA (System ON IDLE with GRTC (XOSC) and 256 KB RAM) 0.6 uA (System OFF) |
| Antenna | MK19A – PCB trace antenna MK19B – u.FL connector |
| Quantity of Pin | 34 half-hole pins and 4 round debug pad pins |
| GPIO | 28 |
| Operating Temperature | -40 to 85°C Extended Industrial temperature -40 to +105°C can be customized |
| Module Dimensions | Length: 21mm±0.2mm Width: 13.8mm±0.2mm Height: 2.3mm+0.1mm/-0.15mm |
| Type | Title | Date |
| Product Brief |  MK19 Bluetooth Module Datasheet-V1.0.pdf | 12/25/2024 |
Company
IoT Services
MOKOSMART
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